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

a one period memory folk theorem for multilateral bargaining games we study strategies with one period recall in the context of a general class of multilateral bargaining games a strategy has one period recall if actions in a particular period are only conditioned on information in the previous and the current period we show that if players are sufficiently patient given any proposal in the space of possible agreements there exists a subgame perfect equilibrium such that the given proposal is made and unanimously accepted in period zero as a corollary we derive that also perpetual delay can be sustained as a subgame perfect equilibrium our strategies are pure and have one period recall and we do not make use of a public randomization device the players discount factors are allowed to be heterogeneous we also construct a finite automata representation of our strategy profile

uniqueness of stationary equilibrium payoffs in the baron ferejohn model abstract we consider a multilateral sequential bargaining model in which the players may differ in their probability of being selected as the proposer and the rate at which they discount future payoffs for games in which agreement requires less than unanimous consent we characterize the set of stationary subgame perfect equilibrium payoffs with this characterization we establish the uniqueness of the equilibrium payoffs for the case where the players have the same discount factor we show that the payoff to a player is nondecreasing in his probability of being selected as the proposer for the case where the players have the same probability of being selected as the proposer we show that the payoff to a player is nondecreasing in his discount factor journal of economic literature classification numbers c72 c78 d70

coalition and party formation in a legislative voting game we examine a legislative voting game where decisions are being made over both ideological and distributive dimensions and legislators preferences are separable over the two dimensions in equilibrium legislators prefer to make proposals for the two dimensions together rather than offering sequential proposals on the two dimensions separately the equilibria exhibit interaction between the ideological and distributive dimensions and in any equilibrium there is a positive probability that a proposal is made and approved which excludes the median legislator as defined over the ideological dimension in contrast with a game where no distributive decision is being made moreover in any stationary equilibrium there is more than one ideological decision that has a positive probability of being proposed and approved we show that legislators can gain from forming political parties and consider examples where predictions can be made about the composition of parties we discuss the impact of political parties on the outcome

existence of stationary bargaining equilibria abstract this paper addresses the question of existence of stationary markov perfect equilibria in a class of dynamic games that includes many known bargaining models and models of coalition formation general sufficient conditions for existence of equilibria are currently lacking in a number of interesting environments e g models with non convexities consumption lower bounds or an evolving state variable the main result establishes existence of equilibrium under compactness and continuity conditions without the structure of convexity or strict comprehensiveness used in the extant literature the proof requires a precise selection of voting equilibria following different proposals using a generalization of fatou s lemma

bargaining in bicameral legislatures when and why does malapportionment matter malapportionment of seats in bicameral legislatures it is widely argued confers disproportionate benefits to overrepresented jurisdictions ample empirical research has documented that unequal representation produces unequal distribution of government expenditures in bicameral legislatures the theoretical foundations for this empirical pattern are weak it is commonly asserted that this stems from unequal voting power per se using a noncooperative bargaining game based on the closed rule infinite horizon model of baron and ferejohn 1989 we assess the conditions under which unequal representation in a bicameral legislature may lead to unequal division of public expenditures two sets of results are derived first when bills originate in the house and the senate considers the bill under a closed rule the equilibrium expected payoffs of all house members are surprisingly equal second we show that small state biases can emerge when 1 there are supermajority rules in the malapportioned chamber 2 the senate initiates bills which produces maldistributed proposal probabilities and 3 the distributive goods are lumpy we thank seminar participants at new york university the university of pennsylvania and the 2002 annual meeting of the american political science association for helpful comments james snyder and michael ting gratefully acknowledge the financial support of national science foundation grant ses 0079035 stephen ansolabehere gratefully acknowledges the support of the carnegie corporation under the carnegie scholars program this paper was written while michael ting was at the university of north carolina at chapel hill and he thanks the department of political science there for their support

predictability and power in legislative bargaining the rules and procedures of legislatures often provide legislators with information bearing on the identities of upcoming proposers for a broad class of legislative bargaining games we establish that markovian equilibria necessarily deliver all economic surplus to the first proposer whenever the information structure permits the legislators to rule out some minimum number of proposers one round in advance this result holds regardless of the recognition process and even if players vary in patience and risk aversion it raises the possibility that procedures adopted in the interest of transparency may contribute to the imbalance of political power

on the efficiency of equilibria in a legislative bargaining model with particularistic and collective goods this study analyzes the efficiency of equilibria in a multilateral bargaining game in which a legislature divides its budget among collective and particularistic goods in order to disentangle the causes of inefficiency we extend the model of volden and wiseman am polit sci rev 101 79 92 2007 by considering quasi linear utility functions and consensus requirements ranging from simple majority to unanimity although unanimous agreements can be reached under weaker consensus requirements we show that pareto inefficiency is associated with non unanimous consent we also study how i the endogenous selection of the legislature s size or ii a sequential choice of collective and particularistic spending eliminates or attenuates the inefficiency problem

a model of endogenous government formation political parties bargain over the allocation of cabinet portfolios when forming coalition governments noncooperative theories of legislative bargaining typically predict that the formateur enjoys a disproportionate share of government ministry positions however empirical evidence indicates that parties receive shares of portfolios proportional to their share of legislative seats that a government party contributes to the government coalition in support of gamson s law of portfolio allocation this article examines government formation as a process in which both the government coalition and the formateur are determined endogenously in equilibrium if parties have similar preferences over cabinet portfolios the share of seats they are allocated is proportional to the parties sizes

agriculture s environmental externalities dea evidence for french agriculture the existence of persistent technical inefficiency offers the opportunity for a free lunch not typically implied by the neoclassical theory of the firm when external effects are related to the use of particular inputs reduction of persistent technically inefficient levels of input use represents a means of reducing external impacts an important example is found in agriculture where substantial environmental impacts are generated by particular inputs within this context this paper considers the usefulness of data envelopment analysis dea for estimation of potential input reductions and assessment of potential reductions of environmental impacts of agricultural inputs an application for french cereal production provides estimates that indicate that substantial potential exists for reduction of input use and environmental impacts

bargaining in legislatures bargaining in legislatures is conducted according to formal rules specifying who may make proposals and how they will be decided legislative outcomes depend on those rules and on the structure of the legislature although the social choice literature provides theories about voting equilibria it does not endogenize the formation of the agenda on which the voting is based and rarely takes into account the institutional structure found in legislatures in our theory members of the legislature act noncooperatively in choosing strategies to serve their own districts explicitly taking into account the strategies members adopt in response to the sequential nature of proposal making and voting the model permits the characterization of a legislative equilibrium reflecting the structure of the legislature and also allows consideration of the choice of elements of that structure in a context in which the standard institution free model of social choice theory yields no equilibrium

the power of the proposal maker in a model of endogenous agenda formation in a distributive setting this study examines a voting procedure for which agenda formation is endogenous it is found not surprisingly that agenda formation is another avenue for strategic manipulation of the voting process and provides the member to first take the floor an asymmetric advantage what is surprising is the degree of this advantage we find that the initial proposal maker earns a share of the fixed resource exceeding 1 for an majority rule and this is regardless of the number of members the voting rule is found to be an effective instrument in at least partially offsetting the power of the proposal maker while maintaining the stability of the voting process

bargaining in standing committees with an endogenous default committee voting has mostly been investigated from the perspective of the standard baron ferejohn model of bargaining over the division of a pie in which bargaining ends as soon as the committee reaches an agreement in standing committees however existing agreements can be amended this article studies an extension of the baron ferejohn framework to a model with an evolving default that reflects this important feature of policymaking in standing committees in each of an infinite number of periods the ongoing default can be amended to a new policy which is in turn the default for the next period the model provides a number of quite different predictions i from a positive perspective the key distinction turns on whether the quota is less than unanimity in that case patient enough players waste substantial shares of the pie each period and the size principle fails in some pure strategy markov perfect equilibria in contrast the unique markov perfect equilibrium payoffs in a unanimity committee coincide with those in the corresponding baron ferejohn framework ii if players have heterogeneous discount factors then a large class of subgame perfect equilibria including all markov perfect equilibria are inefficient

media and gridlock abstract i develop a model of the relation between the media environment and political obstructionism i show that when voters are less informed by media obstructionism becomes a more effective political signal for the minority party the model thus implies that media change can cause gridlock via signaling by contrast the previous literature on causes of gridlock focuses on polarization and other factors the model also makes several auxiliary predictions consistent with recent trends in u s politics

inequity aversion may increase inequity inequity aversion models have been used to explain equitable payoff divisions in bargaining games i show that inequity aversion can actually increase the asymmetry of payoff division if unanimity is not required this is because responders may be willing to accept a lower share rather than risk being left out inequity aversion may also affect comparative statics the advantage of being the proposer can decrease as players become more impatient game theory usually assumes that players care only about their own material payoffs this hypothesis is clearly refuted by the experimental evidence in the ultimatum and related games see camerer 2003 for a recent survey inequity aversion theories have been developed in order to account for the stylised facts observed in the laboratory see fehr and schmidt 1999 and bolton and ockenfels 2000 inequity aversion means that people are willing to give up some material payoffs in order to achieve more equitable outcomes inequity averse responders prefer to reject small offers in the ultimatum game and the proposers anticipating this make higher offers in this article i examine the implications of inequity aversion for bargaining games in which unanimity is not required e g legislative bargaining games and show that it may lead to a more inequitable outcome than would occur with selfish preferences the leading model of legislative bargaining is due to baron and ferejohn 1989 in this model n symmetric players must divide a budget by simple majority each player has an equal chance of being chosen to propose a division of the budget once a proposal is made the remaining players vote yes or no if a majority of the players supports the proposal it is implemented and the game ends otherwise the procedure is repeated this model predicts that minimal winning coalitions will form and that the proposer will receive a disproportionate share of the proceedings thus the equilibrium of the baron ferejohn model with selfish preferences exhibits a substantial amount of inequity some players are excluded almost half of them if the decision rule is simple majority and the proposer receives a substantial share more than half of the total payoff if the decision rule is simple majority the advantage of the proposer increases as players become more impatient or more risk averse the baron ferejohn model has led to many applications and extensions 1 in its simplest form it assumes that parties are selfish risk neutral and only concerned with their share of cabinet posts as opposed to policy the predictions of the model under these assumptions have been tested by ansolabehere et al 2005 using data on the

agricultural productivity of the spanish regions a non parametric malmquist analysis productivity growth for the agricultural sectors of the 17 spanish regions over the period 1977 88 is studied using non parametric programming techniques productivity changes based on conventional inputs are linked to other economic geographic and institutional issues average technical change in the spanish regions grew at an annual rate of 2 9 but with great regional variation this paper presents a clear characterization of areas with greater technical progress and the regions with technical regress

elections governments and parliaments in proportional representation systems this paper presents a theory of parliamentary systems with a proportional representation electoral system a formateur selected based on party representation in parliament and parties that cannot commit to the policies they will implement once in government government formation involves efficient proto coalition bargaining and elections yield unique strong nash equilibrium outcomes depending on the status quo minimal majority surplus or consensus governments can form if parties and voters are myopic and the status quo is subject to shocks consensus governments and centrist policies occur only in a crisis otherwise governments are minimal winning and policies reflect only the preferences of the government parties

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

elections coalitions and legislative outcomes predictions of electoral behavior in a multiparty setting should be a function of the voters beliefs about how parties will perform following an election similarly party behavior in a legislature should be a function of electoral promises and rewards we develop a multistage game theoretic model of three party competition under proportional representation the final policy outcome of the game is generated by a noncooperative bargaining game between the parties in the elected legislature this game is essentially defined by the vote shares each party receives in the general election and the parties electoral policy positions at the electoral stage parties and voters are strategic in that they take account of the legislative implications of any electoral outcome we solve for equilibrium electoral positions by the parties and final policy outcomes

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

aggregation and social choice a mean voter theorem a celebrated result of black 1948a demonstrates the existence of a simple majority winner when preferences are single peaked the social choice follows the preferences of the median voter the median voter s most preferred outcome beats any alternative however this conclusion does not extend to elections in which candidates differ in more than one dimension this paper provides a multi dimensional analog of the median voter result we provide conditions under which the mean voter s most preferred outcome is unbeatable according to a 64 majority rule the conditions supporting this result represent a significant generalization of caplin and nalebuff 1988 the proof of our mean voter result uses a mathematical aggregation theorem due to prekopa 1971 1973 and borell 1975 this theorem has broad applications in economics an application to the distribution of income is described at the end of this paper results on imperfect competition are presented in the companion paper caplin and nalebuff 1991

power brokers middlemen in legislative bargaining abstract we study a model of decentralized legislative bargaining over public decisions with transfers we establish the emergence of middlemen in legislative bargaining as a robust equilibrium phenomenon we show that legislative intermediation can impact policy outcomes and can be inefficient to fulfill this role the middleman s policy preferences and bargaining position must be such that its role of intermediary is credible but the political middleman must also directly benefit from policy change the results highlight fundamental differences between the role of intermediaries in politics and exchange economies

malmquist productivity index decompositions a unifying framework in two widely cited but unpublished working papers simar and wilson 1998 and zofio and lovell 1998 proposed an alternative decomposition of the malmquist productivity index which retained what seemed to be the strongholds of previous proposals with regard to the contribution of technological and efficiency change to productivity change namely a technical change term with regard to the best practice variable returns to scale vrs technology which is to be found in ray and desli 1997 and a scale efficiency change term that illustrates a firm s situation with regard to optimal scale benchmark technology fare et al 1994 attaining this objective required the introduction of an additional term in the malmquist productivity index decomposition which would reflect the scale bias of technical change it is our objective to provide economic rationale for this term within a theory of production context the existing decompositions and recent articles that further elaborate on this issue the ide

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

recognition without replacement in legislative bargaining abstract this paper studies infinite horizon sequential bargaining among n 3 players in which a proposer is randomly selected from the pool of potential proposers if the proposal is rejected the current and previous proposers are excluded from the pool of potential proposers and the game moves on to the next round until every player has had the same number of opportunities to be the proposer to analyze the model with a particular time dependency within each sequence of n rounds a cycle i characterize the stationary equilibrium of a stochastic game which i call cycle stationary subgame perfect cssp equilibrium the cssp equilibrium is unique in payoffs and analogous to the subgame perfect equilibrium of some forms of finite horizon bargaining even when every player is entirely patient the proposer s share in the cssp equilibrium is smaller than that predicted by the stationary equilibrium of the baron ferejohn legislative bargaining model

the intercountry agricultural production function another view factor productivity in agriculture is estimated from repeated observations on a sample of fifty eight countries under the assumption that all countries have access to the same technology technology is viewed as a collection of techniques each technique is represented by a production function the choice of the implemented techniques is determined by the state variables which represent the physical and economic environment within which the firms operate the statistical model is that of varying coefficients and it is estimated by a method which utilizes principal components and multiple comparisons

noncooperative foundations of bargaining power in committees and the shapley shubik index abstract in this paper we explore the noncooperative foundations of the bargaining power that a voting rule gives to each member of a committee that bargains in search of consensus over a set of feasible agreements under a voting rule assuming complete information we model a variety of bargaining protocols and investigate their stationary subgame perfect equilibria we show how the shapley shubik index and other power indices can be interpreted as measures of bargaining power that appear in this light as limit cases

structure induced equilibria and perfect foresight expectations this paper extends the work on structure induced equilibria by explicitly considering voters expectations the standard assumption of myopic expectations is contrasted with the alternative assumption of perfect foresight expectations in the institutional setting examined perfect foresight means voters know how the outcome on the first issue in a sequence of two issues conditions majority rule outcomes on the second issue if voters act on this knowledge when voting on the first issue then several important results follow first voters may possess multipeaked preferences defined over the first issue with a majority cycle resulting so that there is no equilibrium to the whole sequence of elections second even if cycling does not result the exact location of the equilibrium involves a broader conspiracy than previously thought a conspiracy of not only preferences and institutional structure but also voters expectations as conditioned by that structure

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

the law of k n the effect of chamber size on government spending in bicameral legislatures recent work in political economics has examined the positive relationship between legislative size and spending which weingast et al 1981 formalized as the law of 1 n however empirical tests of this theory have produced a pattern of divergent findings the positive relationship between seats and spending appears to hold consistently for unicameral legislatures and for upper chambers in bicameral legislatures but not for lower chambers we bridge this gap between theory and empirics by extending weingast et al s model to account for bicameralism in the context of a baron ferejohn bargaining game our comparative statics predict and empirical data from u s state legislatures corroborate that the size of the upper chamber n is a positive predictor of expenditure whereas the ratio of lower to upper chamber seats k exhibits a negative effect we refer to these relationships as the law of k n as the two variables influence spending in opposite directions

covering dominance and institution free properties of social change this paper shows that different institutional structures for aggregation of preferences under majority rule may generate social choices that are quite similar so that the actual social choice may be rather insensitive to the choice of institutional rules specifically in a multidimensional setting where all voters have strictly quasi concave preferences it is shown that the uncovered set contains the outcomes that would arise from equilibrium behavior under three different institutional settings the three institutional settings are two candidate competition in a large electorate cooperative behavior in small committees and sophisticated voting behavior in a legislative environment where the agenda is determined endogenously because of its apparent institution free properties the uncovered set may provide a useful generalization of the core when a core does not exist a general existence theorem for the uncovered set is proven and for the downsian case bounds for the uncovered set are computed these bounds show that the uncovered set is centered around a generalized median set whose size is a measure of the degree of symmetry of the voter ideal points

uniqueness of stationary equilibrium payoffs in coalitional bargaining we study a model of sequential bargaining in which in each period before an agreement is reached the proposer s identity is randomly determined the proposer suggests a division of a pie of size one each other agent either approves or rejects the proposal and the proposal is implemented if the set of approving agents is a winning coalition for the proposer the theory of the fixed point index is used to show that stationary equilibrium expected payoffs of this coalitional bargaining game are unique this generalizes eraslan 34 insofar as a there are no restrictions on the structure of sets of winning coalitions b different proposers may have different sets of winning coalitions c there may be a positive probability that no proposer is selected

uniqueness of stationary equilibria in bargaining one dimensional policies under super majority rules article history we consider negotiations selecting one dimensional policies individuals have instanta neous preferences represented by continuous concave and single peaked utility functions and they are impatient decisions arise from a bargaining game with random proposers and super majority approval ranging from the simple majority up to unanimity we provide sufficient conditions that guarantee the existence of a unique stationary subgame perfect equilibrium and we provide its explicit characterization the uniqueness of the equilibrium permits an analysis of the set of pareto optimal voting rules for symmetric distributions of peaks and uniform recognition probabilities unanimity is the unanimously preferred ma jority rule

nutrition and the convention on the rights of the child abstract nutrition is not a recognized right in any of the major international human rights instruments access to food basic health services and adequate caring practices however are explicitly recognized as rights in the international bill of human rights and other important human rights instruments such as the convention on the rights of the child crc as food health and care are all necessary and in combination will ensure good nutrition nutrition in this sense becomes a right this paper describes the evolution of children s rights and how nutrition has become neglected the crc which encompasses both civil and political rights and social economic and cultural rights and thereby underlines the indivisibility of the international human rights system provides a firm base for the promotion of nutrition as a right the paper further emphasizes that development should ensure both a desirable outcome and an adequate process outcomes can be specified by goals such as improved nutritional status of children a high quality process is characterized by a high degree of participation community ownership sustainability and empowerment outcome focused strategies emphasize the achievement of goals they are relatively easy to monitor but often unsustainable process focused strategies on the other hand emphasize participation and empowerment they are difficult to monitor and they often do not result in any significant outcome both outcome focused and process focused nutrition strategies alone should be avoided a rights based strategy combines the two positive extremes rights require the fulfilment of deontological criteria interalia a high quality process implementation therefore requires a holistic approach which recognizes both the scientific and the ethical aspects of the problem at the theoretical as well as the practical level a rights based strategy goes beyond the fulfilment of needs because the state has obligations to respect protect and fulfil these rights a rights based strategy for nutrition aims at the progressive achievement of nutritional goals and the progressive establishment of a high quality process in fulfilling these obligations

proposal rights and political power in a canonical model of sequential collective bargaining over a divisible good we show that equilibrium expected payoffs are not restricted by players voting rights or their impatience for all monotonic voting rules and discount factors and for all divisions of the good among players there exists a stationary proposal making rule such that this division represents players expected payoffs in a stationary subgame perfect nash equilibrium in pure strategies the result highlights the significance of proposal rights in determining political power in collective deliberations t he purpose of this article is to further our understanding of political power in a committee environment we consider the problem of a group of two or more agents who must split a fixed divisible good agents cannot use physical force to divide this good our goal is to clarify the role and relative significance of other features of the political environment such as voting rights proposal rights agents patience etc in determining political power following shapley and shubik 1954 we gauge political power in terms of expected outcomes rather than a priori equate it with individual prerogatives 1 in that spirit political power is the share of the divisible good that agents can expect to obtain when their behavior conforms to an appropriately defined equilibrium notion 2 we model committee interaction using a canonical sequential bargaining game in each period a member of the committee is recognized with some probability that is fixed across periods and proposes a division of the good committee members then vote on the proposal if the proposal is approved in accordance with the underlying voting rule the proposed division is implemented and the

bargaining over environmental budgets a political economy model with application to french water policy in decentralized water management with earmarked budgets financed by user taxes and distributed back in the form of subsidies net gains are often heterogeneous across user categories this paper explores the role of negotiation over budget allocation and coalition formation in water boards to provide an explanation for such user specific gaps between tax payments and subsidies we propose a bargaining model to represent the sequential nature of the negotiation process in water districts in which stakeholder representatives may bargain upon a fraction of the budget only the structural model of budget shares estimated from the data on french water agencies performs well as compared with reduced form estimation empirical results confirm the two stage bargaining process and provide evidence for systematic net gains from the system for agricultural water users

demand commitment in legislative bargaining morelli 1999 provides a model of government formation in which the parties make payoff demands and the order of moves is chosen by the leading party morelli s main proposition states that the ex post distribution of payoffs inside the coalition that forms is proportional to the distribution of relative ex ante bargaining power we provide a counterexample in which the leading party is able to obtain the entire payoff furthermore there are coalitions for which proportional payoff division does not occur for any order of moves

persistence of power repeated multilateral bargaining with endogenous agenda setting authority abstract we extend a simple repeated multilateral bargaining model to allow successful agenda setters to hold on to power as long as they maintain the support of a majority of other committee members theoretically and experimentally we compare this endogenous power environment with a standard random power environment in which agenda setters are appointed randomly each period although the theoretical analysis predicts that the two environments are outcome equivalent the experimental analysis shows substantial differences in behavior and outcomes across the games the endogenous power environment results in the formation of more stable coalitions less equitable budget allocations the persistence of power across periods and higher long run inequality than the random power environment we present evidence that the stationary equilibrium refinements traditionally used in the literature fail to predict behavior in either game

non cooperative bargaining theory an introduction the paper provides an informal introduction to some of the main themes of the recent literature on non cooperative or sequential bargaining models it focuses in particular on the relationship between the new approach and the traditional axiomatic approach exemplified by nash bargaining theory it illustrates the new insights offered by the non cooperative approach by reference to a detailed analysis of the manner in which the presence of an outside option available to one of the parties will affect the negotiated outcome finally the difficulties which arise in extending this analysis to two person bargaining with incomplete information and to n person bargaining are discussed this is a revised version of the fourth review of economic studies lecture presented in april 1985 at the joint meeting of the association of university teachers of economics and the royal economic society held in oxford the choice of lecturer is made by a panel whose members are currently professors hahn mirrlees and nobay and the paper is refereed in the usual way this paper aims to provide an informal and elementary introduction to an approach to bargaining which has received a great deal of attention over the past few years the approach involves writing down some particular sequence of moves offers and replies to be made over time in the course of negotiations and then looking for a non cooperative equilibrium in the game thus specified in practice a perfect equilibrium or in games of incomplete information a sequential equilibrium while the approach appears at first sight to be very different in spirit from the traditional axiomatic approach in which a bargaining solution is specified by appealing to a number of general requirements which are deemed appropriate on the basis of some a priori considerations the two approaches are in fact complementary while the

legislative bargaining under weighted voting organizations often distribute resources through weighted voting we analyze this setting using a non cooperative bargaining game based on the baron ferejohn 1989 model unlike analyses derived from cooperative game theory we find that each voter s expected payoff is proportional to her voting weight an exception occurs when many high weight voters exist as low weight voters may expect disproportionately high payoffs due to proposal power the model also predicts that ex post the coalition formateur the party chosen to form a coalition will receive a disproportionately high payoff using data from coalition governments from 1946 to 2001 we find strong evidence ofsuch formateur effects

bargaining foundations of the median voter theorem abstract we give a game theoretic foundation for the median voter theorem in a one dimensional bargaining model based on baron and ferejohn s d baron j ferejohn bargaining in legislatures amer polit sci rev 83 1989 1181 1206 model of distributive politics we prove that as the agents become arbitrarily patient the set of proposals that can be passed in any pure strategy subgame perfect equilibrium collapses to the median voter s ideal point while we leave the possibility of some delay we prove that the agents equilibrium continuation payoffs converge to the utility from the median so that delay if it occurs is inconsequential we do not impose stationarity or any other refinements our result counters intuition based on the folk theorem for repeated games and it contrasts with the known result for the distributive bargaining model that as agents become patient any division of the dollar can be supported as a subgame perfect equilibrium outcome

coalitional bargaining games with random proposers theory and application abstract we consider a non cooperative coalitional bargaining game with random proposers in a general situation for which players differ in recognition probability and time preference we characterize an efficient equilibrium as the generalized nash bargaining solution that belongs to the core the model is applied to wage bargaining between an employer and multiple workers although involuntary unemployment may occur in equilibrium full employment emerges as players become sufficiently patient

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

eliciting information from a committee abstract the paper addresses the mechanism design problem of eliciting truthful information from a committee of informed experts who collude in their information disclosure strategies it is shown that under fairly general conditions full information disclosure is possible if and only if the induced outcome is pareto undominated for the committee members

voting and vetoing the consequences of veto power in committees is analyzed using the appro ach of noncooperative bargaining theory it is first shown that in equilibrium nonveto players do not share in the benefits gained by the decision making of the committee that is in every equilibrium outcome of the bargaining game nonveto players earn zero some measures for reducing the excessive power of veto members in committees are analyzed specifically i study the effects of imposing a deadline on negotiations and of expanding the committee by increasing the number of nonveto players quantitative results are given for the case of the un security council

competitive lobbying and supermajorities in a majority rule institution this paper presents a complete information model of competitive lobbying in a majority rule institution where lobbying consists of providing politically valuable resources to legislators legislators have three roles first they act as allies or opponents in deciding whether to consider a lobbyist s offer second they act as agenda setters in deciding whether to bring a policy alternative to a vote third they vote on the agenda the stationary equilibria include minimal majorities and supermajorities and involve unilateral counteractive and preemptive lobbying supermajorities are recruited either to influence agenda formation or to preempt the opposing lobbyist

computation of equilibrium values in the baron and ferejohn bargaining model abstract computation of exact equilibrium values for n player divide the dollar legislative bargaining games as in baron and ferejohn 1989 with general quota voting rules recognition probabilities and discount factors can be achieved by solving at most n bivariate square linear systems of equations the approach recovers eraslan s 2002 uniqueness result and relies on a characterization of equilibria in terms of two variables that satisfy a pair of piecewise linear equations

on the convergence to the nash bargaining solution for action dependent bargaining protocols we consider a non cooperative multilateral bargaining game and study an action dependent bargaining protocol that is the probability with which a player becomes the proposer in a round of bargaining depends on the identity of the player who previously rejected an important example is the frequently studied rejector becomes proposer protocol we focus on subgame perfect equilibria in stationary strategies which are shown to exist and to be efficient equilibrium proposals do not depend on the probability to propose conditional on the rejection by another player we consider the limit as the bargaining friction vanishes in case no player has a positive probability to propose conditional on his rejection each player receives his utopia payoff conditional on being recognized otherwise equilibrium proposals of all players converge to a weighted nash bargaining solution where the weights are determined by the probability to propose conditional on one s own rejection

the dynamics of political compromise we characterize efficient self enforcing divisions of political or economic surplus between two parties that interact repeatedly the party in power can decide the allocation and the parties political strength changes according to a markov process we find that the share of the party currently in power depends not only on its current strength but also on whether it had previously been even stronger since it last came to power we find that the constitutional supermajority requirements that attempt to constrain the use of power can counterproductively create less compromise

noncooperative foundations of the nucleolus in majority games abstract this paper studies coalition formation payoff division and expected payoffs in a divide the dollar by majority rule game with random proposers a power index is called self confirming if it can be obtained as an equilibrium of the game using the index itself as probability vector unlike the shapley value and other commonly used power indices the nucleolus has this property the proof uses a weak version of kohlberg s siam j appl math 20 1971 62 balancedness result reinterpreting the balancing weights as probabilities in a mixed strategy equilibrium

how individual preferences are aggregated in groups an experimental study abstract this paper experimentally investigates how individual preferences through unrestricted deliberation are aggregated into a group decision in two contexts reciprocating gifts and choosing between lotteries in both contexts we find that median group members have a significant impact on the group decision but the median is not the only influential group member non median members closer to the median tend to have more influence than other members by investigating the same individual s influence in different groups we find evidence for relative position in the group having a direct effect on influence these results are consistent with predictions from spatial models of dynamic bargaining for members with intermediate levels of patience we also find that group deliberation involves bargaining and compromise as well as persuasion preferences tend to shift towards the choice of the individual s previous group especially for those with extreme individual preferences

legislative representation bargaining power and the distribution of federal funds evidence from the us congress this article investigates the relationship between representation in legislatures and the geographic distribution of federal funds in a legislative bargaining model we demonstrate that funds are concentrated in high representation areas and two channels underlie this result the proposal power channel reflects the role of representation in committee assignments and the vote cost channel reflects the role of representation in coalition formation in our empirical analysis we find that small states relative to large states receive more funding in the us senate relative to the house we also find empirical support for the two channels underlying this relationship throughout the history of federations and international organisations a key consti tutional design question involves how jurisdictions of different sizes are represented in legislative bodies and how their votes will ultimately be weighted large jurisdictions typically argue for delegation sizes or voting weights that are roughly proportional to population whereas small jurisdictions typically argue for an equal number of delegates or votes for each jurisdiction this conflict over representation is presumably driven at least in part by a belief that increased representation strengthens bargaining power in the battle over the geographic distribution of funds authorised by these legislative bodies in this article i analyse the relationship between legislative representation bar gaining power and the geographic distribution of federal funds from both a theoretical and empirical perspective in addition to investigating the existence of a relationship between representation and federal funds i also explore the underlying mechanisms that is i ask which political institutions such as agenda control provided to commit tees and the formation of coalitions under majority rule shape the bargaining power of jurisdictions in central legislatures and thus facilitate the relationship between repre sentation and the distribution of federal spending to provide a framework for analysing these issues i begin by developing a simple theoretical model of a central legislature that determines the crossjurisdiction distri bution of local public goods which are financed by a national tax base both delegation sizes and population are variable allowing me to consider a variety of institutional arrangements for jurisdictional representation legislators represent local interests and given the common pool problem associated with concentrated benefits and dis persed tax costs attempt to increase ownjurisdiction spending but to restrain spending elsewhere the model follows a recent literature on legislative bargaining in which a proposer must secure a majority of votes in order to pass legislation and due to the

multiple input multiple output production choices and technology in the u s wheat region duality theory motivates a translog expected profit function consistent with multiple products price uncertainty preseason climate constraints acreage control policies and possibly nonhomothetic technology although multiple outputs are allowed enterprise specific data is not necessary instead time series measures of output revenues and expected prices input expenses and prices and fixed input flows are employed appropriate measures of elasticities of choice returns to size and biases in technological change are derived results indicated decreasing returns to size rather limited though complementary responsiveness of choices to price changes and the nature of biases in technological changes

human rights requirements to social and economic development abstract this paper presents the normative framework of international human rights and the duty of states to cooperate for development starting with the charter of the united nations and proceeding to examine the international bill of human rights and the various international instruments treaties and declarations built upon it by ratifying some of these instruments a large majority of states have undertaken legally binding obligations to ensure freedom from hunger and to promote adequate standards of living including food nutrition and care the paper notes that promotion of human rights and development two purposes that are closely interrelated in the charter of the united nations have since followed two separate trajectories but efforts are now under way to bring them closer together as manifested in particular by the declaration on the right to development adopted by the general assembly of the united nations in 1986 the paper further points out that under international human rights law a comprehensive system of international reporting and monitoring by expert bodies has been developed full transparency has been achieved by ensuring that the state reports are made public and their examination by the international expert bodies are open to anyone interested it is indicated that for reporting in the development field comparable transparency and examination could be developed including for international agencies and other bodies dealing with food and nutrition issues

logrolling under fragmented authoritarianism theory and evidence from china this paper provides a rigorous theoretical and empirical analysis of the effect of logrolling between interest groups on social welfare in a non democratic political system in particular we focus on china where bureaucratic interest groups are separate vertical organizations reaching down from beijing to the provinces and cities the key question in this paper is what are the effects of the logrolling of parochial interest groups on state policies and social welfare in autocracies we address this question both theoretically and empirically the theory predicts a specific distortion in resource allocation because of logrolling while the empirical results confirm the theoretical prediction we find policy outcomes under logrolling are characterized by excessive spending on all the interest groups preferred goods and insufficient spending on public goods we test the existence of logrolling between the ministry of civil affairs and ministry of health in china our result shows logrolling between the two ministries lead to inefficiencies in social security and health care policies

rent seeking and surplus destruction in unanimity bargaining abstract in non cooperative bargaining games in the tradition of rubinstein the proposer s bargaining power stems from the prospect of a delay in case of disagreement since players are impatient this delay is costly for everyone we consider a unanimity bargaining game in which the proposer can strategically choose the length of this delay we assume that the size of the surplus depends endogenously on the chosen length of the prospective delay intuitively the proposer faces the following trade off the more he exploits his proposer power the smaller is the surplus that can be divided one interpretation is that aggressive bargaining tactics hurt the fruitful cooperation among players and thus the surplus we characterize stationary equilibrium strategies and payoffs and obtain sharp predictions on the extent of surplus destruction the size of the social loss and the surplus allocation

proposal power and majority rule in multilateral bargaining with costly recognition this paper studies a sequential bargaining model in which agents expend efforts to be the proposer in equilibrium agents effort choices are influenced by the prize and cost effects the endogenous prize is 9

is there a broader deeper trade off in international multilateral agreements it is commonly thought that there is a trade off between the breadth and depth of multilateral institutions that is multilaterals that are more inclusive in their memberships will necessarily be shallower in their level of cooperation using a multilateral bargaining model with self seeking rational actors i show that such a trade off does not exist for a broad class of multilateral cooperation problems the conclusion that there is a broader deeper trade off follows from the assumption that the members of the multilateral must set their policies at an identical level the multi lateral agreement modeled in this article allows states to set their policies at different levels once this change is made there is no broader deeper trade off a finding that has obvious empirical and policy implications it explains why some regimes are created with fairly large memberships at the outset and it calls into question the policy prescription of limiting membership of multilateral institutions to a small group of committed cooperators for the class of cooperation problems modeled in this article

formal versus informal legislative bargaining we study how the formality of a bargaining procedure affects its outcome we compare a formal baron ferejohn bargaining procedure to an informal procedure where players make and accept proposals in continuous time both constitute non cooperative games corresponding to the same bargaining problem a three player median voter setting with an external disagreement point this allows us to study formality in the presence and absence of a core and provides a natural explanation for the effects of preference polarization our results show that polarization hurts the median player and that formality matters the median player is significantly better off under informal bargaining

distribution of surplus in sequential bargaining with endogenous recognition i examine a sequential bargaining situation in which agents contest the right to propose an allocation the contest can either take place at a pre bargaining stage yielding persistent recognition to propose or recur throughout the bargaining yielding transitory recognition equilibrium analysis reveals that surplus is distributed more unequally under persistent recognition social cost is higher under persistent recognition if and only if it attracts a sufficient number of active bargainers and individual s incentive to propose under transitory recognition may actually increase in the number of agents while this incentive always diminishes under persistent recognition

the mean voter theorem necessary and sufficient conditions for convergent equilibrium formal models of elections have emphasized the convergence of party leaders towards the centre of the electoral distribution this paper attempts to resolve the apparent disparity between the formal result and the perception of political divergence by considering a model incorporating valence valence can be interpreted as the non policy basis of political judgement made by the electorate concerning the quality of political contenders the theorem presented here shows that there is a necessary condition for convergence the condition involves the difference in party valences and the electoral variance when the condition fails the low valence parties will be forced to adopt policy positions far from the electoral centre the inference appears to be substantiated by an empirical model of the israel election in 1996 copyright 2007 wiley blackwell

the right to food in the post cold war era abstract this paper reviews how the end of the cold war is affecting acceptance of key international conventions and the policy environment relevant to the realization of the right to food it focuses on the international bill of human rights and finds that ratification of international human rights conventions including those containing the right to food have accelerated from 1989 to 1994 the paper goes on to analyse the policy environment for the realization of the right to food in less developed countries in relation to worldwide sociopolitical processes of fragmentation and integration taking place in the post cold war era specifically civil conflict and cultural chaos liberalizing national and international economics the spread of democratic governance growing use of politically conditioned aid and reallocation of foreign assistance resources it documents and discusses each as an impediment or opportunity to the practical realization of the right to food through improved food and nutrition security the concluding section argues that the prospects for direct implementation of rights to food as national food and development policy have become unfavourable because such policies have been economically unsustainable and because of the declining capacities of government institutions in general at the same time the application of a normative human rights approach is found to be of critical importance for evaluation and promotion of food and nutrition security by the nation state and by transnational and subnational institutions that are growing more powerful in the post cold war era

voting weights and formateur advantages in the formation of coalition governments over the last two decades a large and important literature has emerged that uses game theoretic models of bargaining to study legislative coalitions to test key predictions of these models we examine the composition of coalition governments from 1946 and 2001 these predictions are almost always expressed in terms of parties minimal integer voting weights we calculate such weights for all parliamentary parties in addition we develop a statistical model that nests the predictions of many of these models of the distribution of posts we find that for parties that join but did not form the government there is a linear relationship between their share of the voting weight in parliament and their share of cabinet posts the party that forms the government the formateur receives a substantial bonus relative to its voting weight the latter finding is more consistent with proposal based bargaining models of coalition formation and suggests that parties gain disproportionate power not because of their size but because of their proposal power

demand bargaining and proportional payoffs in majority games abstract we study a majoritarian bargaining model in which players make payoff demands in decreasing order of voting weight the unique subgame perfect equilibrium outcome is such that the minimal winning coalition of the players that move first forms with payoffs proportional to the voting weights this result advances previous analysis in terms of one or more of the following a the simplicity of the extensive form finite horizon with a predetermined order of moves b the range of the majority games covered c the equilibrium concept subgame perfect equilibrium is sufficient for a unique prediction

a general index of technical change this paper outlines a procedure for estimating a general index of technical change within the context of a quite general production technology specifically when panel data are available for firms in an industry time specific dummies can be combined in a nonlinear estimation procedure to yield a general index of technical change that may be both nonneutral and scale augmenting this approach offers numerous advantages over the traditional time trend representation of technical change for example the general index can serve as the basis for analysis of the determinants of technical change results for a sample of 30 electric utilities over the period 1951 78 show that the productivity decline of the 1970s can be attributed primarily to sulphur oxide restrictions and secularly declining capacity utilization due to rapidly increasing peak load demands

a noncooperative theory of coalitional bargaining the authors explore a sequential offers model of n person coalitional bargaining with transferable utility and with time discounting their focus is on the efficiency properties of stationary equilibria of strictly superadditive games when the discount factor delta is sufficiently large it is shown that delay and the formation of inefficient subcoalitions can occur in equilibrium the latter for some or all orders of proposer however efficient stationary equilibrium payoffs converge to a point in the core as delta approaches one strict convexity is a sufficient condition for there to exist an efficient stationary equilibrium payoff vector for sufficiently high delta

one dimensional bargaining we study a model of multilateral bargaining over social outcomes represented by the points in the unit interval the acceptance or rejection of a proposal is determined by an acceptance rule represented by the collection of decisive coalitions the focus of the paper is on the asymptotic behavior of subgame perfect equilibria in stationary strategies as the players become infinitely patient we show that along any sequence of stationary subgame perfect equilibria the social acceptance set collapses to a point this point called the limit of bargaining equilibria is independent of the sequence of equilibria and is uniquely determined by the set of players the utility functions the recognition probabilities and the acceptance rule the central result of the paper is a characterization of the limit of bargaining equilibria as a unique zero of the characteristic equation

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

a noncooperative coalitional bargaining game with random proposers abstract we extend the stahl rubinstein s alternating offer model ton person coalitional bargaining the key feature of the model is the random selection of proposers at every round no delay of agreement occurs in equilibrium for a super additive game in contrast to the fixed order model of chatterjeeet al rev econ stud 60 1993 463 477 when the discount factor of future payoffs is sufficiently high the agreement on the grand coalition is reached if and only if it has the largest value per capita among all coalitions moreover in the limit as the discount factor goes to one all players divide equally the value of the grand coalition regardless of who makes a proposal journal of economic literatureclassification numbers c72 c73 c78

bargaining over new ideas the distribution of rents and the stability of innovative firms we develop a theory of the rent distribution and stability of innovative firms our theory is based on a model of bargaining over new ideas the model accounts for the problem of information leakage namely the diffusion of information about new ideas among the agents that participate in the bargaining our main results draw a link between the strength of intellectual property rights enforcement and the distribution of rents in firms as well as between the size and organization of firms and their stability our theory explains why small firms are advantaged in introducing innovation into the market and why spin outs tend to emerge from large established firms jel l1 l2 c7

recognition for sale abstract i examine the consequences of letting players compete for bargaining power in a multilateral bargaining game in each period the right to propose an offer is sold to the highest bidder and all players pay their bids if players vote according to any rule in which no player has veto power then the first proposer captures the entire surplus if a full consensus is needed for an offer to be accepted then the first proposer shares the surplus with at most one other player and as the period length between offers vanishes one player may capture virtually the entire surplus in settings with a stochastic or an endogenous surplus players are unwilling to efficiently delay agreement or invest in the surplus

the advantageous nature of risk aversion in a three player bargaining game where acceptance of a proposal requires a simple majority abstract in a three player bargaining game in which acceptance of a proposed allocation requires only the approval of a simple majority it is shown that the most least risk averse player receives the highest lowest expected share when the preferences of the players are not too diverse

some unpleasant bargaining arithmetic abstract it is commonly believed that voting rules that are relatively more inclusive e g unanimity or supermajority are likely to yield relatively more equitable outcomes than simple majority rule we show that this is not necessarily the case in bargaining environments we study a multilateral bargaining model a la baron and ferejohn 1989 where players are heterogeneous with respect to the potential surplus they bring to the bargaining table we show that unanimity rule may generate equilibrium outcomes that are more unequal or less equitable than under majority rule in fact as players become relatively more patient we show that the more inclusive the voting rule the less equitable the equilibrium allocations

order independent equilibria we study a noncooperative game of coalition formation based on an underlying game in coalitional form we introduce order independent equilibria oie a strategy profile is an oie if for any specification of first movers in the sequential game it remains an equilibrium and leads to the same payoff our results are 1 payoffs in oie that use pure stationary strategies must be in the core of the underlying game in coalitional form 2 if the underlying game has the property that all its subgames have nonempty cores then for each payoff vector there exists an oie with the same payoff journal of economic literature classification numbers c70 c71 c72 c78

electoral rules and political selection theory and evidence from a field experiment in afghanistan voters commonly face a choice between competent candidates and those with policy preferences similar to their own this article explores how electoral rules such as district magnitude mediate this trade off and affect the composition of representative bodies and the quality of policy outcomes we show formally that anticipation of bargaining over policy causes voters in elections with multiple single member districts to prefer candidates with polarized policy positions over more competent candidates results from a unique field experiment in afghanistan are consistent with these predictions specifically representatives selected by elections with a single multi member district are better educated and exhibit less extreme policy preferences

communication in multilateral bargaining one of the most robust phenomena in the experimental literature on multilateral bargaining is the failure of proposers to extract equilibrium rents however all previous experiments have overlooked the fact that outside the lab committee members are allowed to and do engage in sometimes intense communication processes prior to voting on a proposal we conduct an experimental test of the baron ferejohn model in which we allow committee members to engage in unrestricted cheap talk communication before a proposal is submitted we find that proposers extract a significantly higher share of resources when communication is allowed communication increases proposer power through two channels first it mitigates the uncertainty surrounding the amount a coalition member is willing to accept second it allows potential coalition members to compete for a place in the coalition by lowering this stated price