a dynamic theory of collective goods programs a collective goods program such as an entitlement program distributes benefits and costs according to constituents characteristics this paper presents a dynamic theory of the legislative choice of collective goods programs based on a sequential model of proposal making and voting in a majority rule legislature where the status quo in a session is given by the program last enacted a stationary markov perfect equilibrium is characterized for a unidimensional collective goods program and yields a generalized median voter theorem comparative statics on preferences and legislative procedures and a characterization of the dynamics of such programs equilibrium programs can expand or contract over time but they ultimately converge to the median on the path to that point legislators may act strategically to address the durability problem that a future legislature can undo the actions of the present legislature by strategically positioning the status quo to limit the changes that future legislatures can make

learning by doing vs learning from others in a principal agent model abstract we introduce learning in a principal agent model of output sharing under moral hazard we use social evolutionary learning to represent social learning and reinforcement experience weighted attraction ewa and individual evolutionary learning iel to represent individual learning learning in the principal agent model is difficult due to the stochastic environment the discontinuity in payoffs at the optimal contract and the incorrect evaluation of foregone payoffs for iel and ewa social learning is much more successful in adapting to the optimal contract than standard individual learning algorithms a modified iel using realized payoffs evaluation performs better but still falls short of social learning

bicameralism and its consequences for the internal organization of legislatures theories of organization of legislatures have mainly focused on the u s congress explaining why committee systems emerge there but not explaining variance in organization across legislatures of different countries to analyze the effects of different constitutional features on the internal organization of legislatures we adopt a vote buying model and consider the incentives to delegate decision rights in a game among legislative chambers we show how presidential veto power and bicameral separation can encourage a legislative chamber to create internal veto players or supermajority rules while a unicameral structure can encourage legislators to delegate power to a leader

majority rules and incentives a club s majority rule defines the number of members that must approve a policy proposed to replace the status quo since the majority rule thus dictates the extent to which winners must compensate losers it also determines the incentives to invest in order to become a winner of anticipated projects if the required majority is large members invest too little because of a holdup problem if it is small members invest too much in order to become a member of the majority coalition to balance these opposing forces the majority rule should increase in the project s value and the club s enforcement capacity but decrease in the heterogeneity in preferences externalities can be internalized by adjusting the rule with heterogeneity in size or initial conditions votes should be appropriately weighted or double majorities required

political selection and persistence of bad governments we study dynamic selection of governments under different political institutions with a special focus on institutional flexibility a government consists of a subset of the individuals in the society the competence level of the government in office determines collective utilities e g by determining the amount and quality of public goods and each individual derives additional utility from being part of the government e g rents from holding office we characterize the dynamic evolution of governments and determine the structure of stable governments which arise and persist in equilibrium in our model perfect democracy where current members of the government do not have veto power over changes in governments always leads to the emergence of the most competent government however any deviation from perfect democracy to any regime with incumbency veto power destroys this result there is always at least one other less competent government that is also stable and can persist forever and even the least competent government can persist forever in office we also show that there is a nonmonotonic relationship between the degree of incumbency veto power and the quality of government in contrast in the presence of stochastic shocks or changes in the environment a regime with less incumbency veto power has greater flexibility and greater probability that high competence governments will come to power this result suggests that a particular advantage of democratic regimes with a limited number of veto players may be their greater adaptability to changes rather than their performance under given conditions finally we show that royalty like dictatorships may be more successful than junta like dictatorships because in these regimes veto players are less afraid of change

dynamic legislative policy making abstract we prove existence of stationary markov perfect equilibria in an infinite horizon model of legislative policy making in which the policy outcome in one period determines the status quo for the next we allow for a multidimensional policy space and arbitrary smooth stage utilities and we assume preferences and the status quo are subject to arbitrarily small shocks we prove that equilibrium continuation values are differentiable and that proposal strategies are continuous almost everywhere we establish upper hemicontinuity of the equilibrium correspondence and we provide weak conditions under which each equilibrium of our model determines an aperiodic transition probability over policies we establish a convergence theorem giving conditions under which the invariant distributions generated by stationary equilibria must be close to the core in a canonical spatial model finally we extend the analysis to sequential move stochastic games and to a version of the model in which the proposer and voting rule are determined by play of a finite perfect information game

the power of the last word in legislative policy making we examine legislative policy making in institutions with two empirically relevant features agenda setting occurs in real time and the default policy evolves we demonstrate that these institutions select condorcet winners when they exist provided a sufficient number of individuals have opportunities to make proposals in policy spaces with either pork barrel or pure redistributional politics where a condorcet winner does not exist the last proposer is effectively a dictator or near dictator under relatively weak conditions

intertemporal market effect on gender earnings differentials lawyers in canada 1970 80 the conventional methodology for decomposition of cross sectional earnings differentials is extended to include a market effect on intertemporal changes in earnings and to analyse the changes in gender differentials over time the integrated cross sectional and intertemporal methodology is illustrated by a decomposition of the change in the earnings differential that occurred during the 1970s between male and female lawyers in canada an unprecedented rate of growth in the supply of lawyers during the 1970s in canada was associated with changes in the gender earnings differential in the legal profession this rapid supply growth had an almost negligible net impact on female earnings but a negative impact of 15 on the male earnings this explains the narrowing of the earnings differential by almost 30 over the decade although three fifths of the gender differential in 1970 and half of the differential in 1980 were attributable to the differences in the characteristics of the two groups these chang

government turnover in parliamentary democracies in this paper we consider a dynamic model of government formation and termination in parliamentary democracies that accounts for the following phenomena 1 cabinet terminations due to replacement or early election 2 cabinet reshuf es 3 minority and surplus governments 4 the relative instability of minority governments

a bargaining model of collective choice we present a general model of legislative bargaining in which the status quo is an arbitrary point in a multidimensional policy space in contrast to other bargaining models the status quo is not assumed to be bad and delay may be pareto efficient we prove existence of stationary equilibria the possibility of equilibrium delay depends on four factors risk aversion of the legislators the dimensionality of the policy space the voting rule and the possibility of transfers across districts if legislators are risk averse if there is more than one policy dimension and if voting is by majority rule for example then delay will almost never occur in one dimension delay is possible if and only if the status quo lies in the core of the voting rule and then it is the only possible outcome this core selection result yields a game theoretic foundation for the well known median voter theorem our comparative statics analysis yield two noteworthy insights i if the status quo is close to the core t hen equilibrium policy outcomes will also be close to the core a moderate status quo produces moderate policy outcomes and ii if legislators are patient then equilibrium proposals will be close to the core legislative patience leads to policy moderation

inefficiency in legislative policymaking a dynamic analysis this paper develops an infinite horizon model of public spending and taxation in which policy decisions are determined by legislative bargaining the policy space incorporates both productive and distributive public spending and distortionary taxation the productive spending is investing in a public good that benefits all citizens e g national defense and the distributive spending is district specific transfers e g pork barrel spending investment in the public good creates a dynamic linkage across policymaking periods the analysis explores the dynamics of legislative policy choices focusing on the efficiency of the steady state level of

a three player dynamic majoritarian bargaining game this file contains two sets of calculations first we report the calculations of demands and continuation values of proposition 1 second the mixing probabilities of proposition 1 are shown to be well defined

incomplete social contracts there is a long normative social contract tradition that attempts to characterize ex post income inequalities that are agreeable to all behind a veil of ignorance this paper takes a similar normative approach to characterize social decision making procedures it is shown that quite generally some form of majority voting is preferred to unanimity behind a veil of ignorance whenever society faces deadweight costs in making compensating transfers deviations from unanimity or ex post pareto optimality are ex ante efficient to the extent that they economize on costly compensating transfers put another way the optimal decision rule trades off the benefits of minority protection and those from greater flexibility jel h11 g33 g34 d63 p16 p48

why a stubborn conservative would run a deficit policy with time inconsistent preferences a conservative government in favor of a low level of public consumption knows that it will be replaced by a government in favor of a larger level of public consumption we show that the resulting level of public consumption is in between the levels the two governments would choose if each were in power both in the present and in the future in particular we show that if the conservative government is more stubborn in a particular sense than the succeeding government the conservative government will borrow more than it would had it remained in power in the future

a model of farsighted voting i present a new method of interpreting voter preferences in settings where policy remains in effect until replaced by new legislation in such settings voters consider not only the utility they receive from a given policy today but also the utility they will receive from policies likely to replace that policy in the future the model can be used to characterize both long term preferences and distributions over policy outcomes in situations where policy is ongoing and voters are farsighted

do juntas lead to personal rule january 2009although almost half of the world s population lives under nondemocratic regimes thequestions of how policy decisions are made and how power changes hands in nondemocra cies have received relatively little attention in the political economy literature a popularview forcefully articulated by gordon tullock 1987 is that because there are no stronginstitutions ensuring consensus and regulating the election and succession of leaders non democratic regimes rapidly degenerate into personal rule where a single dictator dominatesevery aspect of decision making tullock writes empirically the junta characteristicallyshrinks to one man p 144 and continues to explain this as the result of dynamic in teractions among the members of the junta he suggests that there will typically be anaccumulation of power by one of the junta members if this upstart member succeeds hebecomes the sole ruler if he fails he is eliminated by the other members of the junta this process continues until one member is standing tullock thus concludes it can beseen that this process would tend over time to lead the junta into becoming just one manthrough the gradual exclusion of individuals who had failed in plotting or the success of anindividual who had not p 145 tullock s account like that of many others implicitly recognizes that politics in non democratic and weakly institutionalized societies should be conceptualized as one of thedynamic coalition formations there are no rules that ensure orderly transitions of powerand no checks against some members of the ruling coalition eliminating or sidelining others however formal models of dynamic coalition formation in nondemocratic societies have notbeen developed until recently in this paper we draw on our work on dynamic coalition formation daron acemoglu georgy egorov and konstantin sonin 2008a and investigate tullock s conjecture formally 1

noncooperative foundations of stable sets in voting games abstract this short note studies the noncooperative foundations of von neumann morgenstern stable sets in voting games to do so we study stationary markov equilibria smes of a noncooperative legislative bargaining game based on underlying simple games the following result emerges from such an exercise every stable set of the underlying simple game is the limit set of pure strategy stage undominated smes of the bargaining game when voters are sufficiently farsighted

the survival of the welfare state this paper provides an analytical characterization of markov perfect equilibria in a model with repeated voting where agents vote over distortionary income redistribution a key result is that the future constituency for redistributive policies depends positively on current redistribution since this affects both private investments and the future distribution of voters the model features multiple equilibria in some equilibria positive redistribution persists forever in other equilibria even a majority of beneficiaries of redistribution vote strategically so as to induce the end of the welfare state next period skill biased technical change makes the survival of the welfare state less likely

sources of inefficiency in a representative democracy a dynamic analysis this paper studies the efficiency of policy choice in representative democracies it extends the citizen candidate model of democratic policy making to a dynamic environment equilibrium policy choices are shown to be efficient in the sense that in each period conditional on future policies being selected through the democratic process there exists no alternative current policy choices which can raise the expected utilities of all citizens however policies that would be declared efficient by standard economic criteria are not necessarily adopted in political equilibrium the paper argues that these divergencies are legitimately viewed as politicalfailures

legislative bargaining with reconsideration we present a dynamic model of legislative bargaining with an endogenously evolving default policy and a persistent agenda setter policy making proceeds until the agenda setter can no longer pass a new policy to replace an approved bill we prove existence and necessary conditions of pure strategy stationary equilibria for any finite policy space any number of players and any preference profile in equilibrium the value of proposal power is limited compared to the case that disallows reconsideration as voters are induced to protect each other s benefits to maintain their future bargaining positions the agenda setter in turn would prefer to limit his ability to reconsider the lack of commitment due to the possibility of reconsideration however enhances policy efficiency

estimating the value of proposal power this paper investigates the role of proposal power in the allocation of transportation projects across u s congressional districts in 1991 and 1998 the evidence supports the key qualitative prediction of legislative bargaining models members with proposal power those sitting on the transportation authorization committee secure more project spending for their districts than do other representatives support for the quantitative restrictions on the value of proposal power is more mixed i then empirically address several alternative models of legislative behavior including partisan models informational roles for committees models with appropriations committees and theories of committees as preference outliers

dynamics and stability of constitutions coalitions and clubs a central feature of dynamic collective decision making is that the rules that govern the procedures for future decision making and the distribution of political power across players are determined by current decisions for example current constitutional change must take into account how the new constitution may pave the way for further changes in laws and regulations we develop a general framework for the analysis of this class of dynamic problems under relatively natural acyclicity assumptions we provide a complete characterization of dynamically stable states as functions of the initial state and determine conditions for their uniqueness we show how this framework can be applied in political economy coalition formation and the analysis of the dynamics of clubs the explicit characterization we provide highlights two intuitive features of dynamic collective decision making 1 a social arrangement is made stable by the instability of alternative arrangements that are preferred by sufficiently many members of the society 2 efficiency enhancing changes are often resisted because of further social changes that they will engender

electoral rules and minority representation in u s cities of minority representation majorities tend to disenfranchise minorities through strategic manipulation of electoral rules with the aim of explaining changes in electoral rules adopted by u s cities particularly in the south we show why majorities tend to adopt winner take all city wide rules at large elections in response to an increase in the size of the minority when the minority they are facing is relatively small in this case for the majority it is more effective to leverage on its sheer size instead of risking conceding representation to voters from minority elected districts however as the minority becomes larger closer to a fifty fifty split the possibility of losing the whole city induces the majority to prefer minority votes to be confined in minority packed districts single member district rules serve this purpose we show empirical results consistent with these implications of the model in a novel data set covering u s cities and towns from 1930 to 2000

bargaining in legislatures over particularistic and collective goods we develop a bargaining model in which a legislature divides a budget among particularistic and collective goods by incorporating both private and public goods in a unified model we uncover nonmonotonic relationships between legislative preferences for collective spending and the amount of the budget actually allocated to collective goods put simply policy proposers can exploit coalition partners strong preferences for public goods to actually provide fewer public goods in equilibrium while directing more private goods to themselves these results explain why policy reforms to limit special interest spending often fail this unified model also sheds new light on when legislatures prefer open or closed amendment rules and when coalitions take different sizes and shapes