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Friday, June 5, 2020

Ostracism

From Wikipedia, the free encyclopedia
 
Ostracism (Greek: ὀστρακισμός, ostrakismos) was a procedure under the Athenian democracy in which any citizen could be expelled from the city-state of Athens for ten years. While some instances clearly expressed popular anger at the citizen, ostracism was often used preemptively. It was used as a way of neutralizing someone thought to be a threat to the state or potential tyrant. The word "ostracism" continues to be used for various cases of social shunning.

Procedure

The name is derived from the ostraka (singular ostrakon, ὄστρακον), referring to the pottery shards that were used as voting tokens. Broken pottery, abundant and virtually free, served as a kind of scrap paper (in contrast to papyrus, which was imported from Egypt as a high-quality writing surface, and was thus too costly to be disposable).

Each year the Athenians were asked in the assembly whether they wished to hold an ostracism. The question was put in the sixth of the ten months used for state business under the democracy (January or February in the modern Gregorian Calendar). If they voted "yes", then an ostracism would be held two months later. In a section of the agora set off and suitably barriered, citizens gave the name of those they wished to be ostracised to a scribe, as many of them were illiterate, and they then scratched the name on pottery shards, and deposited them in urns. The presiding officials counted the ostraka submitted and sorted the names into separate piles. The person whose pile contained the most ostraka would be banished, provided that an additional criterion of a quorum was met, about which there are two principal sources:
  • According to Plutarch, the ostracism was considered valid if the total number of votes cast was at least 6000.
  • According to a fragment of Philochorus, the "winner" of the ostracism must have obtained at least 6000 votes.
Plutarch's evidence for a quorum of 6000, on a priori grounds a necessity for ostracism also per the account of Philochorus, accords with the number required for grants of citizenship in the following century and is generally preferred.

The person nominated had ten days to leave the city. If he attempted to return, the penalty was death. Notably, the property of the man banished was not confiscated and there was no loss of status. After the ten years, he was allowed to return without stigma. It was possible for the assembly to recall an ostracised person ahead of time; before the Persian invasion of 479 BC, an amnesty was declared under which at least two ostracised leaders—Pericles' father Xanthippus and Aristides 'the Just'—are known to have returned. Similarly, Cimon, ostracised in 461 BC, was recalled during an emergency.

Distinction from other Athenian democratic processes

Ostracism was crucially different from Athenian law at the time; there was no charge, and no defence could be mounted by the person expelled. The two stages of the procedure ran in the reverse order from that used under almost any trial system—here it is as if a jury are first asked "Do you want to find someone guilty?", and subsequently asked "Whom do you wish to accuse?". Equally out of place in a judicial framework is perhaps the institution's most peculiar feature: that it can take place at most once a year, and only for one person. In this it resembles the Greek pharmakos or scapegoat—though in contrast, pharmakos generally ejected a lowly member of the community.

A further distinction between these two modes (and one not obvious from a modern perspective) is that ostracism was an automatic procedure that required no initiative from any individual, with the vote simply occurring on the wish of the electorate—a diffuse exercise of power. By contrast, an Athenian trial needed the initiative of a particular citizen-prosecutor. While prosecution often led to a counterattack (or was a counterattack itself), no such response was possible in the case of ostracism as responsibility lay with the polity as a whole. In contrast to a trial, ostracism generally reduced political tension rather than increased it.

Although ten years of exile would have been difficult for an Athenian to face, it was relatively mild in comparison to the kind of sentences inflicted by courts; when dealing with politicians held to be acting against the interests of the people, Athenian juries could inflict very severe penalties such as death, unpayably large fines, confiscation of property, permanent exile and loss of citizens' rights through atimia. Further, the elite Athenians who suffered ostracism were rich or noble men who had connections or xenoi in the wider Greek world and who, unlike genuine exiles, were able to access their income in Attica from abroad. In Plutarch, following as he does the anti-democratic line common in elite sources, the fact that people might be recalled early appears to be another example of the inconsistency of majoritarianism that was characteristic of Athenian democracy. However, ten years of exile usually resolved whatever had prompted the expulsion. Ostracism was simply a pragmatic measure; the concept of serving out the full sentence did not apply as it was a preventative measure, not a punitive one.

One curious window on the practicalities of ostracism comes from the cache of 190 ostraka discovered dumped in a well next to the acropolis. From the handwriting, they appear to have been written by fourteen individuals and bear the name of Themistocles, ostracised before 471 BC and were evidently meant for distribution to voters. This was not necessarily evidence of electoral fraud (being no worse than modern voting instruction cards), but their being dumped in the well may suggest that their creators wished to hide them. If so, these ostraka provide an example of organized groups attempting to influence the outcome of ostracisms. The two-month gap between the first and second phases would have easily allowed for such a campaign.

There is another interpretation, however, according to which these ostraka were prepared beforehand by enterprising businessmen who offered them for sale to citizens who could not easily inscribe the desired names for themselves or who simply wished to save time.

The two-month gap is a key feature in the institution, much as in elections under modern liberal democracies. It first prevented the candidate for expulsion being chosen out of immediate anger, although an Athenian general such as Cimon would have not wanted to lose a battle the week before such a second vote. Secondly, it opened up a period for discussion (or perhaps agitation), whether informally in daily talk or public speeches before the Athenian assembly or Athenian courts.* In this process a consensus, or rival consensuses, might emerge. Further, in that time of waiting, ordinary Athenian citizens must have felt a certain power over the greatest members of their city; conversely, the most prominent citizens had an incentive to worry how their social inferiors regarded them.

Period of operation

Ostracism was not in use throughout the whole period of Athenian democracy (circa 506–322 BC), but only occurred in the fifth century BC. The standard account, found in Aristotle's Constitution of the Athenians 22.3, attributes the establishment to Cleisthenes, a pivotal reformer in the creation of the democracy. In that case, ostracism would have been in place from around 506 BC. The first victim of the practice, however, was not expelled until 487 BC—nearly 20 years later. Over the course of the next 60 years some 12 or more individuals followed him. The list may not be complete, but there is good reason to believe the Athenians did not feel the need to eject someone in this way every year. The list of known ostracisms runs as follows:

Ostraca from 482 BC
Around 12,000 political ostraka have been excavated in the Athenian agora and in the Kerameikos. The second victim, Cleisthenes' nephew Megacles, is named by 4647 of these, but for a second undated ostracism not listed above. The known ostracisms seem to fall into three distinct phases: the 480s BC, mid-century 461–443 BC and finally the years 417–415: this matches fairly well with the clustering of known expulsions, although Themistocles before 471 may count as an exception. This suggests that ostracism fell in and out of fashion.

The last known ostracism was that of Hyperbolus in circa 417 BC. There is no sign of its use after the Peloponnesian War, when democracy was restored after the oligarchic coup of the Thirty had collapsed in 403 BC. However, while ostracism was not an active feature of the fourth-century version of democracy, it remained; the question was put to the assembly each year, but they did not wish to hold one.

Purpose

Because ostracism was carried out by thousands of people over many decades of an evolving political situation and culture, it did not serve a single monolithic purpose. Observations can be made about the outcomes, as well as the initial purpose for which it was created.

The first rash of people ostracised in the decade after the defeat of the first Persian invasion at Marathon in 490 BC were all related or connected to the tyrant Peisistratos, who had controlled Athens for 36 years up to 527 BC. After his son Hippias was deposed with Spartan help in 510 BC, the family sought refuge with the Persians, and nearly twenty years later Hippias landed with their invasion force at Marathon. Tyranny and Persian aggression were paired threats facing the new democratic regime at Athens, and ostracism was used against both.

Tyranny and democracy had arisen at Athens out of clashes between regional and factional groups organised around politicians, including Cleisthenes. As a reaction, in many of its features the democracy strove to reduce the role of factions as the focus of citizen loyalties. Ostracism, too, may have been intended to work in the same direction: by temporarily decapitating a faction, it could help to defuse confrontations that threatened the order of the State.

In later decades when the threat of tyranny was remote, ostracism seems to have been used as a way to decide between radically opposed policies. For instance, in 443 BC Thucydides, son of Melesias (not to be confused with the historian of the same name) was ostracised. He led an aristocratic opposition to Athenian imperialism and in particular to Pericles' building program on the acropolis, which was funded by taxes created for the wars against the Achaemenid Empire. By expelling Thucydides the Athenian people sent a clear message about the direction of Athenian policy. Similar but more controversial claims have been made about the ostracism of Cimon in 461 BC.

The motives of individual voting citizens cannot, of course, be known. Many of the surviving ostraka name people otherwise unattested. They may well be just someone the submitter disliked, and voted for in moment of private spite. As such, it may be seen as a secular, civic variant of Athenian curse tablets, studied in scholarly literature under the Latin name defixiones, where small dolls were wrapped in lead sheets written with curses and then buried, sometimes stuck through with nails for good measure.

In one anecdote about Aristides, known as "the Just", who was ostracised in 482, an illiterate citizen, not recognising him, came up to ask him to write the name Aristides on his ostrakon. When Aristides asked why, the man replied it was because he was sick of hearing him being called "the Just". Perhaps merely the sense that someone had become too arrogant or prominent was enough to get someone's name onto an ostrakon. Ostracism rituals could have also been an attempt to dissuade people from covertly committing murder or assassination for intolerable or emerging individuals of power so as to create an open arena or outlet for those harboring primal frustrations and urges or political motivations. The solution for murder, in Gregory H. Padowitz's theory, would then be "ostracism" which would ultimately be beneficial for all parties—the unfortunate individual would live and get a second chance and society would be spared the ugliness of feuds, civil war, political jams and murder.

Fall into disuse

The last ostracism, that of Hyperbolos in or near 417 BC, is elaborately narrated by Plutarch in three separate lives: Hyperbolos is pictured urging the people to expel one of his rivals, but they, Nicias and Alcibiades, laying aside their own hostility for a moment, use their combined influence to have him ostracised instead. According to Plutarch, the people then become disgusted with ostracism and abandoned the procedure forever.

In part ostracism lapsed as a procedure at the end of the fifth century because it was replaced by the graphe paranomon, a regular court action under which a much larger number of politicians might be targeted, instead of just one a year as with ostracism, and with greater severity. But it may already have come to seem like an anachronism as factional alliances organised around important men became increasingly less significant in the later period, and power was more specifically located in the interaction of the individual speaker with the power of the assembly and the courts. The threat to the democratic system in the late fifth century came not from tyranny but from oligarchic coups, threats of which became prominent after two brief seizures of power, in 411 BC by "the Four Hundred" and in 404 BC by "the Thirty", which were not dependent on single powerful individuals. Ostracism was not an effective defence against the oligarchic threat and it was not so used.

Analogues

Other cities are known to have set up forms of ostracism on the Athenian model, namely Megara, Miletos, Argos and Syracuse, Sicily. In the last of these it was referred to as petalismos, because the names were written on olive leaves. Little is known about these institutions. Furthermore, pottery shards identified as ostraka have been found in Chersonesos Taurica, leading historians to the conclusion that a similar institution existed there as well, in spite of the silence of the ancient records on that count.

A similar modern practice is the recall election, in which the electoral body removes its representation from an elected officer. Unlike under modern voting procedures, the Athenians did not have to adhere to a strict format for the inscribing of ostraka. Many extant ostraka show that it was possible to write expletives, short epigrams or cryptic injunctions beside the name of the candidate without invalidating the vote. For example:
  • Kallixenes, son of Aristonimos, "the traitor"
  • Archen, "lover of foreigners"
  • Agasias, "the donkey"
  • Megacles, "the adulterer"

Modern usage

The social psychologist Kipling Williams has written extensively on ostracism as a modern phenomenon. Williams defines ostracism as "any act or acts of ignoring and excluding of an individual or groups by an individual or a group". Williams suggests that the most common form of ostracism in a modern context is refusing to communicate with a person. By refusing to communicate with a person, that person is effectively ignored and excluded. The advent of the internet has made ostracism much easier to engage in, and conversely much more difficult to detect, with Williams and others describing this online ostracism as "cyberostracism". In email communication, in particular, it is relatively easy for a person or organization to ignore and exclude a specific person, through simply refusing to communicate with the person. Karen Douglas thus describes "unanswered emails" as constituting a form of cyberostracism, and similarly Eric Wesselmann and Kipling Williams describe "ignored emails" as a form of cyberostracism.

Williams and his colleagues have charted responses to ostracism in some five thousand cases, and found two distinctive patterns of response. The first is increased group-conformity, in a quest for re-admittance; the second is to become more provocative and hostile to the group, seeking attention rather than acceptance.

As it researched as well by many social psychologists, (Williams, 2007) research has demonstrated that being rejected from groups can have profound effects on a person (Smith, E. R., Macki, D. M., & Claypool, H. M., (2014) social psychology. Psychology Press. p. 409)

Whistleblowing

Research suggests that ostracism is a common reprisal strategy used by organizations in response to whistleblowing. Kipling Williams, in a survey on US whistleblowers, found that 100 percent reported post-whistleblowing ostracism. Alexander Brown similarly found that post-whistleblowing ostracism is a common response, and indeed describes ostracism as form of "covert" reprisal, as it is normally so difficult to identify and investigate.

Qahr and ashti

Qahr and ashti is a culture-specific Iranian form of personal shunning, most frequently of another family member in Iran. While modern Western concepts of ostracism are based upon enforcing conformity within a societally-recognized group, qahr is a private (batin), family-oriented affair of conflict or display of anger that is never disclosed to the public at large, as to do would be a breach of social etiquette.

Qahr is avoidance of a lower-ranking family member who has committed a perceived insult. It is one of several ritualized social customs of Iranian culture.

Gozasht means 'tolerance, understanding and a desire or willingness to forgive' and is an essential componant of Qahr and Ashti for both psychological needs of closure and cognition, as well as a culturally accepted source for practicing necessary religious requirements of tawbah (repentance, see Koran 2:222) and du'a (supplication).

Electoral system

From Wikipedia, the free encyclopedia
 
Map showing the electoral systems used to elect candidates to the lower house of national legislatures, as of 2019.
Plurality system
Majoritarian system
Semi-proportional system
Proportional system
Mixed system
  Majority bonus system
    Mixed-member proportional representation
        Parallel voting
Other

  No direct election
  No information

An electoral system or voting system is a set of rules that determine how elections and referendums are conducted and how their results are determined. Political electoral systems are organized by governments, while non-political elections may take place in business, non-profit organisations and informal organisations. These rules govern all aspects of the voting process: when elections occur, who is allowed to vote, who can stand as a candidate, how ballots are marked and cast, how the ballots are counted (electoral method), limits on campaign spending, and other factors that can affect the outcome. Political electoral systems are defined by constitutions and electoral laws, are typically conducted by election commissions, and can use multiple types of elections for different offices.

Some electoral systems elect a single winner to a unique position, such as prime minister, president or governor, while others elect multiple winners, such as members of parliament or boards of directors. There are many variations in electoral systems, but the most common systems are first-past-the-post voting, the two-round (runoff) system, proportional representation and ranked voting. Some electoral systems, such as mixed systems, attempt to combine the benefits of non-proportional and proportional systems.

The study of formally defined electoral methods is called social choice theory or voting theory, and this study can take place within the field of political science, economics, or mathematics, and specifically within the subfields of game theory and mechanism design. Impossibility proofs such as Arrow's impossibility theorem demonstrate that when voters have three or more alternatives, it is not possible to design a ranked voting electoral system that reflects the preferences of individuals in a global preference of the community, present in countries with proportional representation and plurality voting.

Types of electoral systems

Plurality systems

Countries using first-past-the-post for legislatures.

Plurality voting is a system in which the candidate(s) with the highest number of votes wins, with no requirement to get a majority of votes. In cases where there is a single position to be filled, it is known as first-past-the-post; this is the second most common electoral system for national legislatures, with 58 countries using it to elect their legislatures, the vast majority of which are current or former British or American colonies or territories. It is also the second most common system used for presidential elections, being used in 19 countries.

In cases where there are multiple positions to be filled, most commonly in cases of multi-member constituencies, plurality voting is referred to as block voting or plurality-at-large. This takes two main forms: in one form voters have as many votes as there are seats and can vote for any candidate, regardless of party – this is used in eight countries. There are variations on this system such as limited voting, where voters are given fewer votes than there are seats to be filled (Gibraltar is the only territory where this system is in use) and single non-transferable vote (SNTV), in which voters can vote for only one candidate in a multi-member constituency, with the candidates receiving the most votes declared the winners; this system is used in Afghanistan, Kuwait, the Pitcairn Islands and Vanuatu. In the other main form of block voting, also known as party block voting, voters can only vote for the multiple candidates of a single party. This is used in five countries as part of mixed systems.

The Dowdall system, a multi-member constituency variation on the Borda count, is used in Nauru for parliamentary elections and sees voters rank the candidates depending on how many seats there are in their constituency. First preference votes are counted as whole numbers; the second preference votes divided by two, third preferences by three; this continues to the lowest possible ranking. The totals achieved by each candidate determine the winners.

Majoritarian systems

Majoritarian voting is a system in which candidates have to receive a majority of the votes to be elected, although in some cases only a plurality is required in the last round of counting if no candidate can achieve a majority. There are two main forms of majoritarian systems, one using a single round of ranked voting and the other using two or more rounds. Both are primarily used for single-member constituencies.

Majoritarian voting can take place in a single round using instant-runoff voting (IRV), whereby voters rank candidates in order of preference; this system is used for parliamentary elections in Australia and Papua New Guinea. If no candidate receives a majority of the vote in the first round, the second preferences of the lowest-ranked candidate are then added to the totals. This is repeated until a candidate achieves over 50% of the number of valid votes. If not all voters use all their preference votes, then the count may continue until two candidates remain, at which point the winner is the one with the most votes. A modified form of IRV is the contingent vote where voters do not rank all candidates, but have a limited number of preference votes. If no candidate has a majority in the first round, all candidates are excluded except the top two, with the highest remaining preference votes from the votes for the excluded candidates then added to the totals to determine the winner. This system is used in Sri Lankan presidential elections, with voters allowed to give three preferences.

The other main form of majoritarian system is the two-round system, which is the most common system used for presidential elections around the world, being used in 88 countries. It is also used in 20 countries for electing the legislature. If no candidate achieves a majority of votes in the first round of voting, a second round is held to determine the winner. In most cases the second round is limited to the top two candidates from the first round, although in some elections more than two candidates may choose to contest the second round; in these cases the second round is decided by plurality voting. Some countries use a modified form of the two-round system, such as Ecuador where a candidate in the presidential election is declared the winner if they receive 40% of the vote and are 10% ahead of their nearest rival, or Argentina (45% plus 10% ahead), where the system is known as ballotage.

An exhaustive ballot is not limited to two rounds, but sees the last-placed candidate eliminated in each round of voting. Due to the potentially large number of rounds, this system is not used in any major popular elections, but is used to elect the Speakers of parliament in several countries and members of the Swiss Federal Council. In some formats there may be multiple rounds held without any candidates being eliminated until a candidate achieves a majority, a system used in the United States Electoral College.

Proportional systems

Countries by type of proportional system
 
Proportional representation is the most widely used electoral system for national legislatures, with the parliaments of over eighty countries elected by various forms of the system.

Party-list proportional representation is the single most common electoral system and is used by 80 countries, and involves voters voting for a list of candidates proposed by a party. In closed list systems voters do not have any influence over the candidates put forward by the party, but in open list systems voters are able to both vote for the party list and influence the order in which candidates will be assigned seats. In some countries, notably Israel and the Netherlands, elections are carried out using 'pure' proportional representation, with the votes tallied on a national level before assigning seats to parties. However, in most cases several multi-member constituencies are used rather than a single nationwide constituency, giving an element of geographical representation; but this can result in the distribution of seats not reflecting the national vote totals. As a result, some countries have leveling seats to award to parties whose seat totals are lower than their proportion of the national vote.

In addition to the electoral threshold (the minimum percentage of the vote that a party must obtain to win seats), there are several different ways to allocate seats in proportional systems. There are two main types of system: highest average and largest remainder. Highest average systems involve dividing the votes received by each party by a series of divisors, producing figures that determine seat allocation; for example the D'Hondt method (of which there are variants including Hagenbach-Bischoff) and the Webster/Sainte-Laguë method. Under largest remainder systems, parties' vote shares are divided by the quota (obtained by dividing the total number of votes by the number of seats available). This usually leaves some seats unallocated, which are awarded to parties based on the largest fractions of seats that they have remaining. Examples of largest remainder systems include the Hare quota, Droop quota, the Imperiali quota and the Hagenbach-Bischoff quota.

Single transferable vote (STV) is another form of proportional representation; in STV, voters rank candidates in a multi-member constituency rather than voting for a party list; it is used in Malta and the Republic of Ireland. To be elected, candidates must pass a quota (the Droop quota being the most common). Candidates that pass the quota on the first count are elected. Votes are then reallocated from the least successful candidates, as well as surplus votes from successful candidates, until all seats have been filled by candidates who have passed the quota.

Mixed systems

In several countries, mixed systems are used to elect the legislature. These include parallel voting and mixed-member proportional representation.

In parallel voting systems, which are used in 20 countries, there are two methods by which members of a legislature are elected; part of the membership is elected by a plurality or majority vote in single-member constituencies and the other part by proportional representation. The results of the constituency vote have no effect on the outcome of the proportional vote.

Mixed-member proportional representation, in use in eight countries, also sees the membership of the legislature elected by constituency and proportional methods, but in this case the results of the proportional vote are adjusted to balance the seats won in the constituency vote in order to ensure that parties have a number of seats proportional to their vote share. This may result in overhang seats, where parties win more seats in the constituency system than they would be entitled to based on their vote share. Variations of this include the Additional Member System and Alternative Vote Plus, in which voters cast votes for both single-member constituencies and multi-member constituencies; the allocation of seats in the multi-member constituencies is adjusted to achieve an overall seat total proportional to parties' vote share by taking into account the number of seats won by parties in the single-member constituencies. A form of mixed-member proportional representation, Scorporo, was used in Italy from 1993 until 2006.

Additional features

Some electoral systems feature a majority bonus system to either ensure one party or coalition gains a majority in the legislature, or to give the party receiving the most votes a clear advantage in terms of the number of seats. In Greece the party receiving the most votes is given an additional 50 seats,[6] San Marino has a modified two-round system, which sees a second round of voting featuring the top two parties or coalitions if there is no majority in the first round. The winner of the second round is guaranteed 35 seats in the 60-seat Grand and General Council.

In Uruguay, the President and members of the General Assembly are elected by on a single ballot, known as the double simultaneous vote. Voters cast a single vote, voting for the presidential, Senatorial and Chamber of Deputies candidates of that party. This system was also previously used in Bolivia and the Dominican Republic.

Primary elections

Primary elections are a feature of some electoral systems, either as a formal part of the electoral system or informally by choice of individual political parties as a method of selecting candidates, as is the case in Italy. Primary elections limit the risk of vote splitting by ensuring a single party candidate. In Argentina they are a formal part of the electoral system and take place two months before the main elections; any party receiving less than 1.5% of the vote is not permitted to contest the main elections. In the United States, there are both partisan and non-partisan primary elections.

Indirect elections

Some elections feature an indirect electoral system, whereby there is either no popular vote, or the popular vote is only one stage of the election; in these systems the final vote is usually taken by an electoral college. In several countries, such as Mauritius or Trinidad and Tobago, the post of President is elected by the legislature. In others like India, the vote is taken by an electoral college consisting of the national legislature and state legislatures. In the United States, the president is indirectly elected using a two-stage process; a popular vote in each state elects members to the electoral college that in turn elects the President. This can result in a situation where a candidate who receives the most votes nationwide does not win the electoral college vote, as most recently happened in 2000 and 2016.

Systems used outside politics

In addition to the various electoral systems in use in the political sphere, there are numerous others, some of which are proposals and some of which have been adopted for usage in business (such as electing corporate board members) or for organisations but not for public elections.

Ranked systems include Bucklin voting, the various Condorcet methods (Copeland's, Dodgson's, Kemeny-Young, Maximal lotteries, Minimax, Nanson's, Ranked pairs, Schulze), the Coombs' method and positional voting. There are also several variants of single transferable vote, including CPO-STV, Schulze STV and the Wright system. Dual-member proportional representation is a proposed system with two candidates elected in each constituency, one with the most votes and one to ensure proportionality of the combined results. Biproportional apportionment is a system whereby the total number of votes is used to calculate the number of seats each party is due, followed by a calculation of the constituencies in which the seats should be awarded in order to achieve the total due to them.

Cardinal electoral systems allow voters to score candidates independently. The complexity ranges from approval voting where voters simply state whether they approve of a candidate or not to range voting, where a candidate is scored from a set range of numbers. Other cardinal systems include proportional approval voting, sequential proportional approval voting, satisfaction approval voting, majority judgment and the Janeček Method where voters can cast positive and negative votes.

Historically, weighted voting systems were used in some countries. These allocated a greater weight to the votes of some voters than others, either indirectly by allocating more seats to certain groups (such as the Prussian three-class franchise), or by weighting the results of the vote. The latter system was used in colonial Rhodesia for the 1962 and 1965 elections. The elections featured two voter rolls (the 'A' roll being largely European and the 'B' roll largely African); the seats of the House Assembly were divided into 50 constituency seats and 15 district seats. Although all voters could vote for both types of seats, 'A' roll votes were given greater weight for the constituency seats and 'B' roll votes greater weight for the district seats. Weighted systems are still used in corporate elections, with votes weighted to reflect stock ownership.

Rules and regulations

In addition to the specific method of electing candidates, electoral systems are also characterised by their wider rules and regulations, which are usually set out in a country's constitution or electoral law. Participatory rules determine candidate nomination and voter registration, in addition to the location of polling places and the availability of online voting, postal voting, and absentee voting. Other regulations include the selection of voting devices such as paper ballots, machine voting or open ballot systems, and consequently the type of vote counting systems, verification and auditing used.

Compulsory voting, enforced.
Compulsory voting, not enforced.
Compulsory voting, enforced (only men).
Compulsory voting, not enforced (only men).
Historical: the country had compulsory voting in the past.

Electoral rules place limits on suffrage and candidacy. Most countries's electorates are characterised by universal suffrage, but there are differences on the age at which people are allowed to vote, with the youngest being 16 and the oldest 21 (although voters must be 25 to vote in Senate elections in Italy). People may be disenfranchised for a range of reasons, such as being a serving prisoner, being declared bankrupt, having committed certain crimes or being a serving member of the armed forces. Similar limits are placed on candidacy (also known as passive suffrage), and in many cases the age limit for candidates is higher than the voting age. A total of 21 countries have compulsory voting, although in some there is an upper age limit on enforcement of the law. Many countries also have the none of the above option on their ballot papers.

In systems that use constituencies, apportionment or districting defines the area covered by each constituency. Where constituency boundaries are drawn has a strong influence on the likely outcome of elections in the constituency due to the geographic distribution of voters. Political parties may seek to gain an advantage during redistricting by ensuring their voter base has a majority in as many constituencies as possible, a process known as gerrymandering. Historically rotten and pocket boroughs, constituencies with unusually small populations, were used by wealthy families to gain parliamentary representation.

Some countries have minimum turnout requirements for elections to be valid. In Serbia this rule caused multiple re-runs of presidential elections, with the 1997 election re-run once and the 2002 elections re-run three times due insufficient turnout in the first, second and third attempts to run the election. The turnout requirement was scrapped prior to the fourth vote in 2004. Similar problems in Belarus led to the 1995 parliamentary elections going to a fourth round of voting before enough parliamentarians were elected to make a quorum.

Reserved seats are used in many countries to ensure representation for ethnic minorities, women, young people or the disabled. These seats are separate from general seats, and may be elected separately (such as in Morocco where a separate ballot is used to elect the 60 seats reserved for women and 30 seats reserved for young people in the House of Representatives), or be allocated to parties based on the results of the election; in Jordan the reserved seats for women are given to the female candidates who failed to win constituency seats but with the highest number of votes, whilst in Kenya the Senate seats reserved for women, young people and the disabled are allocated to parties based on how many seats they won in the general vote. Some countries achieve minority representation by other means, including requirements for a certain proportion of candidates to be women, or by exempting minority parties from the electoral threshold, as is done in Poland, Romania and Serbia.

History

Pre-democratic

In ancient Greece and Italy, the institution of suffrage already existed in a rudimentary form at the outset of the historical period. In the early monarchies it was customary for the king to invite pronouncements of his people on matters in which it was prudent to secure its assent beforehand. In these assemblies the people recorded their opinion by clamouring (a method which survived in Sparta as late as the 4th century BCE), or by the clashing of spears on shields.

Early democracy

Voting has been used as a feature of democracy since the 6th century BC, when democracy was introduced by the Athenian democracy. However, in Athenian democracy, voting was seen as the least democratic among methods used for selecting public officials, and was little used, because elections were believed to inherently favor the wealthy and well-known over average citizens. Viewed as more democratic were assemblies open to all citizens, and selection by lot (known as sortition), as well as rotation of office.

Generally, the taking of votes was effected in the form of a poll. The practice of the Athenians, which is shown by inscriptions to have been widely followed in the other states of Greece, was to hold a show of hands, except on questions affecting the status of individuals: these latter, which included all lawsuits and proposals of ostracism, in which voters chose the citizen they most wanted to exile for ten years, were determined by secret ballot (one of the earliest recorded elections in Athens was a plurality vote that it was undesirable to win, namely an ostracism vote). At Rome the method which prevailed up to the 2nd century BCE was that of division (discessio). But the system became subject to intimidation and corruption. Hence a series of laws enacted between 139 and 107 BCE prescribed the use of the ballot (tabella), a slip of wood coated with wax, for all business done in the assemblies of the people. For the purpose of carrying resolutions a simple majority of votes was deemed sufficient. As a general rule equal value was made to attach to each vote; but in the popular assemblies at Rome a system of voting by groups was in force until the middle of the 3rd century BCE by which the richer classes secured a decisive preponderance.

Most elections in the early history of democracy were held using plurality voting or some variant, but as an exception, the state of Venice in the 13th century adopted approval voting to elect their Great Council. The Venetians' method for electing the Doge was a particularly convoluted process, consisting of five rounds of drawing lots (sortition) and five rounds of approval voting. By drawing lots, a body of 30 electors was chosen, which was further reduced to nine electors by drawing lots again. An electoral college of nine members elected 40 people by approval voting; those 40 were reduced to form a second electoral college of 12 members by drawing lots again. The second electoral college elected 25 people by approval voting, which were reduced to form a third electoral college of nine members by drawing lots. The third electoral college elected 45 people, which were reduced to form a fourth electoral college of 11 by drawing lots. They in turn elected a final electoral body of 41 members, who ultimately elected the Doge. Despite its complexity, the method had certain desirable properties such as being hard to game and ensuring that the winner reflected the opinions of both majority and minority factions. This process, with slight modifications, was central to the politics of the Republic of Venice throughout its remarkable lifespan of over 500 years, from 1268 to 1797.

Development of new systems

Jean-Charles de Borda proposed the Borda count in 1770 as a method for electing members to the French Academy of Sciences. His method was opposed by the Marquis de Condorcet, who proposed instead the method of pairwise comparison that he had devised. Implementations of this method are known as Condorcet methods. He also wrote about the Condorcet paradox, which he called the intransitivity of majority preferences. However, recent research has shown that the philosopher Ramon Llull devised both the Borda count and a pairwise method that satisfied the Condorcet criterion in the 13th century. The manuscripts in which he described these methods had been lost to history until they were rediscovered in 2001.

Later in the 18th century, apportionment methods came to prominence due to the United States Constitution, which mandated that seats in the United States House of Representatives had to be allocated among the states proportionally to their population, but did not specify how to do so. A variety of methods were proposed by statesmen such as Alexander Hamilton, Thomas Jefferson, and Daniel Webster. Some of the apportionment methods devised in the United States were in a sense rediscovered in Europe in the 19th century, as seat allocation methods for the newly proposed method of party-list proportional representation. The result is that many apportionment methods have two names; Jefferson's method is equivalent to the D'Hondt method, as is Webster's method to the Sainte-Laguë method, while Hamilton's method is identical to the Hare largest remainder method.

The single transferable vote (STV) method was devised by Carl Andræ in Denmark in 1855 and in the United Kingdom by Thomas Hare in 1857. STV elections were first held in Denmark in 1856, and in Tasmania in 1896 after its use was promoted by Andrew Inglis Clark. Party-list proportional representation began to be used to elect European legislatures in the early 20th century, with Belgium the first to implement it for its 1900 general elections. Since then, proportional and semi-proportional methods have come to be used in almost all democratic countries, with most exceptions being former British colonies.

Single-winner revival

Perhaps influenced by the rapid development of multiple-winner electoral systems, theorists began to publish new findings about single-winner methods in the late 19th century. This began around 1870, when William Robert Ware proposed applying STV to single-winner elections, yielding instant-runoff voting (IRV). Soon, mathematicians began to revisit Condorcet's ideas and invent new methods for Condorcet completion; Edward J. Nanson combined the newly described instant runoff voting with the Borda count to yield a new Condorcet method called Nanson's method. Charles Dodgson, better known as Lewis Carroll, proposed the straightforward Condorcet method known as Dodgson's method. He also proposed a proportional representation system based on multi-member districts, quotas as minimum requirements to take seats, and votes transferable by candidates through proxy voting.

Ranked voting electoral systems eventually gathered enough support to be adopted for use in government elections. In Australia, IRV was first adopted in 1893, and continues to be used along with STV today. In the United States in the early-20th-century progressive era, some municipalities began to use Bucklin voting, although this is no longer used in any government elections, and has even been declared unconstitutional in Minnesota.

Recent developments

The use of game theory to analyze electoral systems led to discoveries about the effects of certain methods. Earlier developments such as Arrow's impossibility theorem had already shown the issues with Ranked voting systems. Research led Steven Brams and Peter Fishburn to formally define and promote the use of approval voting in 1977. Political scientists of the 20th century published many studies on the effects that the electoral systems have on voters' choices and political parties, and on political stability. A few scholars also studied which effects caused a nation to switch to a particular electoral system. One prominent current voting theorist is Nicolaus Tideman, who formalized concepts such as strategic nomination and the spoiler effect in the independence of clones criterion. Tideman also devised the ranked pairs method, a Condorcet method that is not susceptible to clones.

The study of electoral systems influenced a new push for electoral reform beginning around the 1990s, when proposals were made to replace plurality voting in governmental elections with other methods. New Zealand adopted mixed-member proportional representation for the 1993 general elections and STV for some local elections in 2004. After plurality voting was a key factor in the contested results of the 2000 presidential elections in the United States, various municipalities in the United States began to adopt Instant-runoff voting, although some of them subsequently returned to their prior method. However, attempts at introducing more proportional systems were not always successful; in Canada there were two referendums in British Columbia in 2005 and 2009 on adopting an STV method, both of which failed. In the United Kingdom, a 2011 referendum on adopting IRV saw the proposal rejected.

In other countries there were calls for the restoration of plurality or majoritarian systems or their establishment where they have never been used; a referendum was held in Ecuador in 1994 on the adoption the two round system, but the idea was rejected. In Romania a proposal to switch to a two-round system for parliamentary elections failed only because voter turnout in the referendum was too low. Attempts to reintroduce single-member constituencies in Poland (2015) and two-round system in Bulgaria (2016) via referendums both also failed due to low turnout.

Comparison of electoral systems

Electoral systems can be compared by different means. Attitudes towards systems are highly influenced by the systems' impact on groups that one supports or opposes, which can make the objective comparison of voting systems difficult. There are several ways to address this problem:

One approach is to define criteria mathematically, such that any electoral system either passes or fails. This gives perfectly objective results, but their practical relevance is still arguable. 

Another approach is to define ideal criteria that no electoral system passes perfectly, and then see how often or how close to passing various methods are over a large sample of simulated elections. This gives results which are practically relevant, but the method of generating the sample of simulated elections can still be arguably biased. 

A final approach is to create imprecisely defined criteria, and then assign a neutral body to evaluate each method according to these criteria. This approach can look at aspects of electoral systems which the other two approaches miss, but both the definitions of these criteria and the evaluations of the methods are still inevitably subjective.

Arrow's and Gibbard's theorems prove that no system using ranked voting or cardinal voting, can meet all such criteria simultaneously. Instead of debating the importance of different criteria, another method is to simulate many elections with different electoral systems, and estimate the typical overall happiness of the population with the results, their vulnerability to strategic voting, their likelihood of electing the candidate closest to the average voter, etc.

Hydrogen-like atom

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