Policy Space and Social Choice Within
Having established the concept of veto players, Tsebelis then applies this to social choice, following Anthony Downs' approach of continuous policy space with veto players concerned solely about proximilty of choices to their ideal on a policy spectrum. Further he assumes that there is a status quo point (apparently analogous to a disagreement point in game theoretic bargaining analysis).
He argues that the status quo will only change if it is weakly preferred by all veto players (since otherwise one of the players would veto the social choice). This is analogous to saying that the status quo will only change if the status quo is not Pareto efficient for veto players. Tsebelis then suggests that where Pareto improvements are available, the social choice will be for a point which is Pareto efficient. He suggests that in the case where there are many such points, there will be mechanisms to determine which point is reached (although there is no explicit exposition of a bargaining analysis either co-operative or non-cooperative).
Tsebslis then looks at how various veto players resolve certain situation (changing the number of policy dimensions, veto players and status quo points). In so doing he looks at situations with many solutions.
Read more about this topic: Veto Players
Famous quotes containing the words policy, space, social and/or choice:
“Maybe it’s understandable what a history of failures America’s foreign policy has been. We are, after all, a country full of people who came to America to get away from foreigners. Any prolonged examination of the U.S. government reveals foreign policy to be America’s miniature schnauzer—a noisy but small and useless part of the national household.”
—P.J. (Patrick Jake)
“Why not a space flower? Why do we always expect metal ships?”
—W.D. Richter (b. 1945)
“Both gossip and joking are intrinsically valuable activities. Both are essentially social activities that strengthen interpersonal bonds—we do not tell jokes and gossip to ourselves. As popular activities that evade social restrictions, they often refer to topics that are inaccessible to serious public discussion. Gossip and joking often appear together: when we gossip we usually tell jokes and when we are joking we often gossip as well.”
—Aaron Ben-Ze’Ev, Israeli philosopher. “The Vindication of Gossip,” Good Gossip, University Press of Kansas (1994)
“Utah is the only State that gives condemned men a choice between death by hanging or before a firing squad. Most prisoners prefer the firing squad, but one obstinate convict in 1912 elected to be hanged because “hanging is more expensive to the state.””
—State of Utah, U.S. public relief program (1935-1943)