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The Theory of Political Coalitions is an academic book on positive political theory written by the American political scientist William H. Riker and published in 1962. It uses game theory to formalize political theory. In it, Riker deduces the size principle. On its postulates, politicians are proved to form winning, minimal-size coalitions. [1]
If all the (at least three, in the example above) members of a winning coalition prefer alternative x to alternative y, then the society (of five individuals, in the example above) will adopt the same ranking (social preference). The Nakamura number of a simple game is defined as the minimum number of winning coalitions with empty intersection ...
The selectorate theory is a theory of government that studies the interactive relationships between political survival strategies and economic realities. It is first detailed in The Logic of Political Survival, authored by Bruce Bueno de Mesquita of New York University (NYU), Alastair Smith of NYU, Randolph M. Siverson of UC Davis, and James D. Morrow of the University of Michigan.
The Nakamura number of a simple game is the minimal number of winning coalitions with empty intersection. According to Nakamura's theorem, the number measures the degree of rationality; it is an indicator of the extent to which an aggregation rule can yield well-defined choices.
A minimum winning coalition is the smallest number of votes required to win the passage of a piece of legislation. Minimum winning coalitions demonstrate the importance of logrolling within a democracy, because the minimal winning coalition may be overthrown with the sway of a single vote.
In the 10 weeks until Election Day, they must build a winning coalition, introduce a relatively unknown contender to the public and unveil ideas that excite the base without alienating ...
Meanwhile, Texas and Florida, which were the two largest states in President-elect Trump’s winning coalition in 2024, are estimated to gain four seats each. Taken altogether, if the estimated ...
In multi-party states, a coalition agreement is an agreement negotiated between the parties that form a coalition government. It codifies the most important shared goals and objectives of the cabinet. It is often written by the leaders of the parliamentary groups. Coalitions that have a written agreement are more productive than those that do ...