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Veto Player
''Veto Players: How Political Institutions Work'' is a book written by political science professor George Tsebelis in 2002. It is a game theory analysis of political behavior. In this work Tsebelis uses the concept of the veto player as a tool for analysing the outcomes of political systems. His primary focus is on legislative behaviour and outcomes. Veto players The concept of the veto player is a political actor who has the ability to decline a choice being made. Specifically in Tsebelis' analysis a veto player is one who can stop a change from the status quo. This is analogous to players in a bargaining game where all players must reach agreement. A key feature of veto players is that they have preferences over public policy outcomes and these are continuous across the continuous policy choices the veto player faces. There are a number of difficulties with applying the concept of veto players to political systems: *What is a veto? Although from a game theoretic perspecti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Tsebelis
George Tsebelis is a Greek-American political scientist who specializes in comparative politics and formal modeling. He is currently Anatol Rapoport Collegiate Professor of Political Science at the University of Michigan. He received undergraduate degrees in engineering from the National Technical University of Athens and in political science from Sciences Po. He received a doctorate in mathematical statistics from Pierre and Marie Curie University and one in political science from Washington University in St. Louis. Tsebelis was elected as a Fellow of the American Academy of Arts and Sciences as part of the Academy's 2016 class and was named the 2025 William H. Riker Prize recipient "in recognition of a body of research that exemplifies and advances the scientific study of politics”. He also received honorary degrees from the Universities of Crete (2014) and the National Kapodistrian University of Athens (2024). Veto players theory Tsebelis developed the theory of "ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Political Science
Political science is the scientific study of politics. It is a social science dealing with systems of governance and Power (social and political), power, and the analysis of political activities, political philosophy, political thought, political behavior, and associated constitutions and laws. Specialists in the field are political scientists. History Origin Political science is a social science dealing with systems of governance and power, and the analysis of political activities, political institutions, political thought and behavior, and associated constitutions and laws. As a social science, contemporary political science started to take shape in the latter half of the 19th century and began to separate itself from political philosophy and history. Into the late 19th century, it was still uncommon for political science to be considered a distinct field from history. The term "political science" was not always distinguished from political philosophy, and the modern dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Game Theory
Game theory is the study of mathematical models of strategic interactions. It has applications in many fields of social science, and is used extensively in economics, logic, systems science and computer science. Initially, game theory addressed two-person zero-sum games, in which a participant's gains or losses are exactly balanced by the losses and gains of the other participant. In the 1950s, it was extended to the study of non zero-sum games, and was eventually applied to a wide range of Human behavior, behavioral relations. It is now an umbrella term for the science of rational Decision-making, decision making in humans, animals, and computers. Modern game theory began with the idea of mixed-strategy equilibria in two-person zero-sum games and its proof by John von Neumann. Von Neumann's original proof used the Brouwer fixed-point theorem on continuous mappings into compact convex sets, which became a standard method in game theory and mathematical economics. His paper was f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Veto
A veto is a legal power to unilaterally stop an official action. In the most typical case, a president (government title), president or monarch vetoes a bill (law), bill to stop it from becoming statutory law, law. In many countries, veto powers are established in the country's constitution. Veto powers are also found at other levels of government, such as in state, provincial or local government, and in international bodies. Some vetoes can be overcome, often by a supermajority vote: Veto power in the United States, in the United States, a two-thirds vote of the United States House of Representatives, House and United States Senate, Senate can override a presidential veto.Article One of the United States Constitution#Clause 2: From bills to law, Article I, Section 7, Clause 2 of the United States Constitution Some vetoes, however, are absolute and cannot be overridden. For example, United Nations Security Council veto power, in the United Nations Security Council, the five per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthony Downs
James Anthony Downs (November 21, 1930October 2, 2021) was an American economist specializing in public policy and public administration. His research focuses included political choice theory, rent control, affordable housing, and transportation economics. He wrote a number of books including, ''An Economic Theory of Democracy'' (1957) and ''Inside Bureaucracy'' (1967), which have been major influences on the public choice school of political economy. In ''Downs's Law of Peak-Hour Traffic Congestion'' (1962), he predicted that expanding expressways could not reduce traffic congestion, since demand would increase as well, and that reducing speeds increases capacity. He served as a senior fellow at the Brookings Institution in Washington, D.C., member of faculty at the University of Chicago and a visiting fellow at the Public Policy Institute of California in San Francisco. Downs was also an elected fellow of the National Academy of Public Administration (United States), National ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pareto Efficiency
In welfare economics, a Pareto improvement formalizes the idea of an outcome being "better in every possible way". A change is called a Pareto improvement if it leaves at least one person in society better off without leaving anyone else worse off than they were before. A situation is called Pareto efficient or Pareto optimal if all possible Pareto improvements have already been made; in other words, there are no longer any ways left to make one person better off without making some other person worse-off. In social choice theory, the same concept is sometimes called the unanimity principle, which says that if ''everyone'' in a society (strict inequality, non-strictly) prefers A to B, society as a whole also non-strictly prefers A to B. The Pareto frontier, Pareto front consists of all Pareto-efficient situations. In addition to the context of efficiency in ''allocation'', the concept of Pareto efficiency also arises in the context of productive efficiency, ''efficiency in prod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Index (other)
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Power index may refer to: * Banzhaf power index * Shapley–Shubik power index The Shapley–Shubik power index was formulated by Lloyd Shapley and Martin Shubik in 1954 to measure the powers of players in a voting game. The constituents of a voting system, such as legislative bodies, executives, shareholders, individual leg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Consensus Democracy
Consensus democracy is the application of consensus decision-making and supermajority to the process of legislation in a democracy. It is characterized by a decision-making structure that involves and takes into account as broad a range of opinions as possible, as opposed to majoritarian democracy systems where minority opinions can potentially be ignored by vote-winning majorities. Constitutions typically require consensus or supermajority. A consensus government is a national unity government with representation across the whole political spectrum. A concordance democracy is a type of consensus democracy where majority rule does not play a central role. Optional referendums and popular initiatives correspond to consensus democracy. Examples Consensus democracy is most closely embodied in certain countries such as Switzerland, Germany, Austria, Denmark, Lebanon, Sweden, Iraq, and Belgium, where consensus is an important feature of political culture, particularly with a vi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Political Science Books
Politics () is the set of activities that are associated with making decisions in groups, or other forms of power relations among individuals, such as the distribution of status or resources. The branch of social science that studies politics and government is referred to as political science. Politics may be used positively in the context of a "political solution" which is compromising and non-violent, or descriptively as "the art or science of government", but the word often also carries a negative connotation.. The concept has been defined in various ways, and different approaches have fundamentally differing views on whether it should be used extensively or in a limited way, empirically or normatively, and on whether conflict or co-operation is more essential to it. A variety of methods are deployed in politics, which include promoting one's own political views among people, negotiation with other political subjects, making laws, and exercising internal and external f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
