Collective Decisions and Voting


Book Description

When one thinks about how collective decisions are made, voting is the method that comes naturally to mind. But other methods such as random process and consensus are also used. This book explores just what a collective decision is, classifies the methods of making collective decisions, and identifies the advantages and disadvantages of each method. Classification is the prelude to evaluation. What are the characteristics of a method of making collective decisions, the book asks, that permit us to describe a collective decision as good? The second part of the book is detailed exploration of voting: the dimensions in which voting situations differ, the origins and logic of majority rule, the frequency of cycles in voting, the Arrow and Gibbard-Satterthwaite theorems, criteria for ways of cutting through cycles and the application of these criteria to a variety of rules, voting over continuums, proportional representation, and voting rules that take account of intensities of preferences. Relatively unknown methods of voting give voting a much greater potential than is generally recognized. Collective Decisions and Voting is essential reading for everyone with an interest in voting theory and in how public choices might be made.




Democracy for Realists


Book Description

Why our belief in government by the people is unrealistic—and what we can do about it Democracy for Realists assails the romantic folk-theory at the heart of contemporary thinking about democratic politics and government, and offers a provocative alternative view grounded in the actual human nature of democratic citizens. Christopher Achen and Larry Bartels deploy a wealth of social-scientific evidence, including ingenious original analyses of topics ranging from abortion politics and budget deficits to the Great Depression and shark attacks, to show that the familiar ideal of thoughtful citizens steering the ship of state from the voting booth is fundamentally misguided. They demonstrate that voters—even those who are well informed and politically engaged—mostly choose parties and candidates on the basis of social identities and partisan loyalties, not political issues. They also show that voters adjust their policy views and even their perceptions of basic matters of fact to match those loyalties. When parties are roughly evenly matched, elections often turn on irrelevant or misleading considerations such as economic spurts or downturns beyond the incumbents' control; the outcomes are essentially random. Thus, voters do not control the course of public policy, even indirectly. Achen and Bartels argue that democratic theory needs to be founded on identity groups and political parties, not on the preferences of individual voters. Now with new analysis of the 2016 elections, Democracy for Realists provides a powerful challenge to conventional thinking, pointing the way toward a fundamentally different understanding of the realities and potential of democratic government.




Gaming the Vote


Book Description

At least five U.S. presidential elections have been won by the second most popular candidate, because of "spoilers"--Minor candidates who take enough votes away from the most popular candidate to tip the election. The spoiler effect is a consequence of the "impossibility theorem," discovered by Nobel laureate economist Kenneth Arrow, which asserts that voting is fundamentally unfair--and political strategists are exploiting the mathematical faults of the simple majority vote. This book presents a solution to the spoiler problem: a system called range voting, already widely used on the Internet, which is the fairest voting method of all, according to computer studies. Range voting remains controversial, however, and author Poundstone assesses the obstacles confronting any attempt to change the American electoral system.--From publisher description.




Reasoning and Choice


Book Description

A major new theoretical explanation of how ordinary people decide what to favour and what to oppose politically.




Rationality, Democracy, and Justice


Book Description

This volume advances the research agenda of one of the most remarkable political thinkers of our time: Jon Elster. With an impressive list of contributors, it features studies in five topics in political and social theory: rationality and collective action, political and social norms, democracy and constitution making, transitional justice, and the explanation of social behavior. Additionally, this volume includes chapters on the development of Elster's thinking over the past decades. Like Elster's own writings, the essays in this collection are problem-driven, nonideal inquiries of practical relevance. This volume closes with lucid comments by Jon Elster.




Networks, Crowds, and Markets


Book Description

Are all film stars linked to Kevin Bacon? Why do the stock markets rise and fall sharply on the strength of a vague rumour? How does gossip spread so quickly? Are we all related through six degrees of separation? There is a growing awareness of the complex networks that pervade modern society. We see them in the rapid growth of the internet, the ease of global communication, the swift spread of news and information, and in the way epidemics and financial crises develop with startling speed and intensity. This introductory book on the new science of networks takes an interdisciplinary approach, using economics, sociology, computing, information science and applied mathematics to address fundamental questions about the links that connect us, and the ways that our decisions can have consequences for others.




Lowering the Voting Age to 16


Book Description

This book explores the consequences of lowering the voting age to 16 from a global perspective, bringing together empirical research from countries where at least some 16-year-olds are able to vote. With the aim to show what really happens when younger people can take part in elections, the authors engage with the key debates on earlier enfranchisement and examine the lead-up to and impact of changes to the voting age in countries across the globe. The book provides the most comprehensive synthesis on this topic, including detailed case studies and broad comparative analyses. It summarizes what can be said about youth political participation and attitudes, and highlights where further research is needed. The findings will be of great interest to researchers working in youth political socialization and engagement, as well as to policymakers, youth workers and activists.




Collective Decision-Making:


Book Description

In the last decade the techniques of social choice theory, game theory and positive political theory have been combined in interesting ways so as to pro vide a common framework for analyzing the behavior of a developed political economy. Social choice theory itself grew out of the innovative attempts by Ken neth Arrow (1951) and Duncan Black (1948, 1958) to extend the range of economic theory in order to deal with collective decision-making over public goods. Later work, by William Baumol (1952), and James Buchanan and Gordon Tullock (1962), focussed on providing an "economic" interpretation of democratic institutions. In the same period Anthony Downs (1957) sought to model representative democracy and elections while William Riker (1962) made use of work in cooperative game theory (by John von Neumann and Oscar Morgenstern, 1944) to study coalition behavior. In my view, these "rational choice" analyses of collective decision-making have their antecedents in the arguments of Adam Smith (1759, 1776), James Madison (1787) and the Marquis de Condorcet (1785) about the "design" of political institutions. In the introductory chapter to this volume I briefly describe how some of the current normative and positive aspects of social choice date back to these earlier writers.




Against Democracy


Book Description

A bracingly provocative challenge to one of our most cherished ideas and institutions Most people believe democracy is a uniquely just form of government. They believe people have the right to an equal share of political power. And they believe that political participation is good for us—it empowers us, helps us get what we want, and tends to make us smarter, more virtuous, and more caring for one another. These are some of our most cherished ideas about democracy. But Jason Brennan says they are all wrong. In this trenchant book, Brennan argues that democracy should be judged by its results—and the results are not good enough. Just as defendants have a right to a fair trial, citizens have a right to competent government. But democracy is the rule of the ignorant and the irrational, and it all too often falls short. Furthermore, no one has a fundamental right to any share of political power, and exercising political power does most of us little good. On the contrary, a wide range of social science research shows that political participation and democratic deliberation actually tend to make people worse—more irrational, biased, and mean. Given this grim picture, Brennan argues that a new system of government—epistocracy, the rule of the knowledgeable—may be better than democracy, and that it's time to experiment and find out. A challenging critique of democracy and the first sustained defense of the rule of the knowledgeable, Against Democracy is essential reading for scholars and students of politics across the disciplines. Featuring a new preface that situates the book within the current political climate and discusses other alternatives beyond epistocracy, Against Democracy is a challenging critique of democracy and the first sustained defense of the rule of the knowledgeable.




Collective Decisions: Theory, Algorithms And Decision Support Systems


Book Description

This book is a token of appreciation for Professor Gregory E. Kersten (1949–2020), one of the most prominent and active researchers and scholars in the broadly perceived field of collective decisions, notably negotiations, the author of numerous influential papers, books, and edited volumes, a great scientist, mentor, and a loyal friend and colleague. This book contains some papers in the fields of group and collective decisions, voting, social choice, negotiations, and related topics, with examples of real applications. The authors are top researchers and scholars from all over the world whose life and academic career has been inspired and influenced by Professor Kersten.