sequential bargaining as a noncooperative foundation for walrasian equilibrium allocation are weakly preferred to those obtainable from the initial endowments by means of the given set of net trades these conditions are similar to ones studied by schmeidler and vind 1972 and vind 1978 but here they are thought of as characterizing the set of net trades available in steady state equilibria of market games like those studied by douglas gale 1984 1985 1986a 1986b and 1986c the characterization result is used as a key step in the proof of results like gale s the allocations induced by steady state equilibria are walrasian for the economy given by the constant flow of new agents into the market our approach generalizes the one followed in gale 1986c and allows us to dispense with assumptions made in previous treatments for example gale s 1986a assumption of dispersed characteristics is dropped we also demonstrate that such a result depends on the assumption that agents cannot observe the past behavior of agents with whom they trade

secular cost changes and the size of government towards a generalized theory abstract baumol s cost disease account of government growth is contrasted with that of kau and rubin who focus on decreasing costs of tax collection over time the apparent paradox wherein the first theory explains government growth by cost increases and the second by way of cost decreases is technically resolved why both theories seem to be able to stand up to empirical tests even though they use similar data is then explained finally public choice analysis is employed to reveal further potential for the ultimate construction of one all embracing secular cost change theory of government growth

a note on distribution in a vote bidding game with general interest and single issue voters abstract this paper explores the strategies of candidates bidding for votes from a population made up of single issue voters and voters who respond in a probabilistic manner

explaining party ideological stances we apply the iterative algorithm by merrill and adams political analysis 9 347 361 2001 to compute the optimal positions of vote maximizing parties along a one dimensional space for a large number of elections this allows us to systematically evaluate factors that push parties toward more centrifugal locations in equilibrium our findings largely corroborate expectations suggested by the theoretical literature albeit with one notable exception the relative size of a partisan constituency reduces rather than enhances the likelihood of a party having an extreme optimal position we then compare derived equilibrium positions with actual party positions with the aim of understanding the nature of electoral incentives and offering insights about party system competition in particular we show that the age of a party the party family to which it belongs post election expectations and internal rules for candidate and leader selection are all factors that increase the probability of a party approaching the position predicted by pure vote maximizing considerations

tests of a rational theory of the size of government in many countries the political party holding power changes more frequently than the trend growth rates in government spending and taxes shifts of political power are often preceded by rhetoric about meeting needs or cutting taxes which post election performances rarely match yet changes in the size of government up and down occur on average the size of government measured by the share of taxes or spending to output has increased in many countries during the past century but changes in size occur at diffrent rates and at times the relative size of government declines

the political economy of publicly provided private goods abstract this paper integrates two different approaches to the analysis of public provision of private goods education health care day care etc while normative public economics has established an efficiency case for such provision the commonly held political economy view has been that it is an economically inefficient phenomenon generated by the political process we establish a political economy framework which in general yields an efficient choice of distributional policy it follows that the central mechanism studied in the normative theory is equally relevant to voting models of decisions on public provision it is shown that under plausible information constraints economically efficient public provision of private goods will be part of politically rational decisions the result is established both within a median voter process and a representative democracy of political parties

an expository note on individual risk without aggregate uncertainty abstract in economies where agents bear some risk the analysis would often be facilitated by the assumption that the risks are i i d and disappear in the aggregate a formal appeal to the law of large numbers requires the consideration of a sequence of finite economies in an economy with a continuum of agents there are countable families of sets for which it is impossible for a law of large numbers to be valid with countably many agents and a finitely additive measure independence is compatible with the law of large numbers

the role of party reputation in the formation of policy abstract this paper shows that a party can credibly establish a platform more moderate than the ideology of its members and thereby raise the probability that the party s nominee wins the election a lame duck incumbent optimally implements his party s platform in order to maintain his party s reputation for having a moderate platform this increases the likelihood that his party retains power when candidates credibly locate themselves in policy space via this mechanism we show that if candidates are sufficiently impatient then their policies are bounded away from one another the policy convergence result is not robust

arbitrage and the flattening effect of large numbers abstract in a model of an exchange economy with a continuum of individuals we show that competitive equilibrium can be regarded as resulting from the elimination of arbitrage opportunities generically the elimination of such opportunities results in a phenomenon we call the flattening effect of large numbers the flattening effect provides a precise meaning to the statement that under perfect competition individuals cannot influence prices they face perfectly elastic demands and supplies the attractive geometry associated with arbitrage and the flattening effect is highlighted in several figures we also link the demonstration of equilibrium through arbitrage with the logic of marginalism journal of economic literature classification number d51

bargaining and markets complexity and the competitive outcome abstract rubinstein and wolinsky rev econ stud 57 1990 63 78 consider a simple decentralised market game in which agents meet randomly or voluntarily and bargain over the terms of trade they show that any individually rational price can be sustained as a sequential equilibrium even though the model has a unique competitive outcome here i consider rubinstein and wolinsky s model and show that if complexity costs of implementing strategies enter players preferences together with the standard payoff in the game then every equilibrium is stationary markov and induces the unique competitive price thus i demonstrate that aversion to complexity may provide a justification for the competitive outcome

on the measurement of congestion in the provision of local public goods abstract this paper contends that a measurement problem the zoo effect has led to upwardly biased estimates of the degree to which local public goods are subject to congestion the suggestion is that the observed positive correlation between public expenditure and population size reflects in large measure the wider range of services provided in more populous jurisdictions not simply a high propensity of these goods to become congested

dynamic matching and bargaining games a general approach this paper presents a new characterization result for competitive allocations in quasilinear economies this result is informed by the analysis of non cooperative dynamic search and bargaining games such games provide models of decentralized markets with trading frictions a central objective of this literature is to investigate how equilibrium outcomes depend on the level of the frictions in particular does the trading outcome become walrasian when frictions become small existing specifications of such games provide divergent answers the characterization result is used to investigate what causes these differences and to generalize insights from the analysis of specific search and bargaining games

incomplete information and ideological explanations of platform divergence one of the paradoxes of formal spatial voting models is the robustness of the theoretical result that candidates will converge toward centrists positions and the empirical observation of persistent policy divergence of candidates a solution is that candidates are ideological have policy preferences when candidates have policy preferences and incomplete information about voter preferences then platform divergence is theoretically predicted experimental tests of the ideological model are presented it is shown that platform divergence is significant when candidates are ideological and have incomplete information about voter preferences however candidate positions are more convergent on average than the theory predicts suggesting that subjects value winning independently of the expected payment

cost sharing versus block funding in a federal system a demand systems approach this paper employs a maximizing framework consistent with the axioms of consumer preference to analyze local government s choice of spending on different social services within this framework it is possible to include both block funding and cost sharing intergovernment transfer schemes canada s movement to block funding from the cost sharing method of financing provincial expenditures on hospitals medical care and post secondary education is analyzed the results indicate that the provincial governments actions are generally consistent with a significant maximizing model of consumer behavior and that the change to block funding had a significant impact on real provincial funding of some previously cost shared social services

bargaining in dynamic markets abstract we study non stationary markets in which traders are randomly matched to bargain over the price of a heterogeneous good or the terms of a partnership the economy consists of a continuum of players drawn from a finite set of types players exogenously enter the market over time and exit upon trading at every date matching probabilities for each pair of types are determined by the endogenous distribution of trader types in the market the balance of bargaining power at any stage depends on variations in potential gains from trade the inflows of new traders the structure of agreements at future dates and the induced frequency of trading opportunities we establish that an equilibrium always exists moreover all equilibria that lead to the same evolution of the economy are payoff equivalent however we show that multiple self fulfilling expectations about the trajectory of the economy generating distinct equilibrium dynamics and payoffs may coexist

a model of political equilibrium in a representative democracy abstract this paper studies political equilibrium in a two party representative democracy in which the political parties are policy motivated and voters trade off their policy preferences against their party identity it is shown that the parties will in general adopt differing policy positions in equilibrium and that under certain qualifications the winning policy will lie between the more popular party s preferred policy and a certain utilitarian optimum the winning policy will be closer to this utilitarian optimum the less biased the electorate is in terms of party identification

equilibrium in a market with sequential bargaining this paper considers a market where pairs of agents who are interested in carrying out a transaction are brought together by a stochastic process and upon meeting initiate a bargaining process over the terms of the transaction the basic bargaining problem is treated with the strategic approach the paper derives the steady state equilibrium agreements analyzes their dependence on market conditions such as the relative numbers of agents of different types and discusses their relations with the competitive equilibrium outcome and other results in the search equilibrium literature this paper considers a market that operates in the following way pairs of agents who have mutual interest in carrying out a transaction are brought together by a stochastic process when two agents meet they initiate a bargaining process over the terms of the transaction if two agents reach an agreement a transaction takes place and they leave the market of course the bargaining positions and hence the agreement reached in any particular meeting will be affected by the conditions prevailing in the market these will include the chances that each of the negotiating parties have of meeting other partners in the event that the agreement in the current negotiations is delayed also the expected length of time required to achieve an alternative transaction and the expected behavior of alternative partners the study of such a market mechanism is of interest for two reasons firstly it captures some realistic aspects of the trade in certain specific markets e g asset markets such as housing and some labor markets secondly it contributes to an understanding of the micro mechanisms of price formation and their role in shaping market outcomes in both cases the features studied are largely neglected in the traditional market equilibrium analyses the related literature includes the articles by diamond 4 5 diamond and maskin 6 mortensen 8 9 and zusman and bell 13 these articles consider markets of the type described above in which transactions are concluded at pairwise meetings of agents the major difference between our work and these articles is in the approach to the basic bargaining problem in the cited articles it is assumed that a meeting is concluded with an instantaneous agreement which divides the associated surplus in an arbitrary predetermined way when the surplus is assumed to be divided equally the division rule is in fact nash s axiomatic bargaining solution in contrast the present paper treats the basic bargaining problem with the strategic approach see rubinstein 19 which constitutes an attempt to look into the bargaining black box this approach explicitly models the time dimension of the bargaining process describes in detail the bargaining procedure and justifies the agreement as a perfect equilibrium in

a downsian spatial model with party activism a unidimensional spatial model is proposed in this article although its formal structure parallels the spatial model of electoral competition this model examines the decisions of individuals as they choose whether or not to become activists in one of two political parties an individual calculus of participation is developed that is similar to the spatial interpretation of the calculus of voting this calculus is then generalized by examining conditions that may hold for aggregate activism probabilities and the relationship between the two forms is investigated some results are then presented which concern the distributions of activists in the two parties these results in general conform to the existence of party cleavages in which there are two stable equilibrium distributions of activists such that the two parties activists are relatively cohesive internally and relatively distinctive externally finally some suggestions are offered about how this model can be combined with the spatial model of candidate competition to provide a more complete model of elections

walrasian allocations without price taking behavior abstract consider an exchange economy where agents are arbitragers in that they try to upset allocations imagining plausible beneficial trades with an introspective algorithm each agent constructs an interactive choice set ics i e a set of bundles that he considers achievable through a sequence of plausible trades with other agents we show that walrasian allocations can be characterized as those where each agent chooses optimally from his ics which is always contained in a budget set with differentiability both sets coincide our analysis provides a different behavioral assumption underlying walrasian allocations offers an explanation for the source of competitive prices and connects with the core convergence theorem journal of economic literature classification numbers d00 d51

public goods club goods and the measurement of crowding abstract this paper shows that some frequently used measures of the degree of publicness of publicly provided goods and club goods are seriously affected by metrization problems the paper proposes measures that do not depend on arbitrary metrization conventions and discusses the relationship of these measures to the question of private provision and optimal club size

an expanded approach to analyzing policy minded candidates a random pivot model is used to expand the theory of policy minded candidates previous results wittman 1977 1983 cox 1984 hansson and stuart 1984 are derived under weaker assumptions new results about candidate strategies in multiple elections are also obtained the thrust of these results supports calvert s 1985 finding that office seeking and policy mindedness are countervailing forces in election contests

locally provided public schooling in brazilian municipalities the objective of this paper is to assess the demand for public schooling in the brazilian municipalities within a median voter framework the quantile regression and spatial techniques proved to be useful to account for the spatial and marginal effects associated with educational services the coefficients attached to the main variables price income and population were significant and had the expected sign the relatively high values for those parameters attest the status for these merit goods as luxuries last but no least the municipal school system in brazil seems to present increasing returns to scale both at the school and the municipality level

dynamic parties and social turnout an agent based model1 the authors develop an agent based model of dynamic parties with social turnout built upon developments in different fields within social science this model yields significant turnout divergent platforms and numerous results consistent with the rational calculus of voting model and the empirical literature on social turnout in a simplified version of the model the authors show how a local imitation structure inherently yields dynamics that encourage positive turnout the model also generates new hypotheses about the importance of social networks and citizen party interactions

stochastic cascades credit contagion and large portfolio losses abstract we analyze an interactive model of credit ratings where external shocks spread by a contagious chain reaction to the entire economy counterparty relationships along with discrete adjustments of credit ratings generate a transition mechanism that allows the financial distress of one firm to spill over to its business partners the spread of financial distress constitutes a source of intrinsic risk for large portfolios of credit sensitive securities that cannot be diversified away we provide a characterization of the fluctuations of credit ratings in large economies when adjustments follow a threshold rule and analyze the effects of downgrading cascades on credit portfolios

majority rule and election models abstract this paper surveys the theoretical work that has been done on majority rule and economic models of elections section i provides an overview of the topic section 2 reviews the most important results that have been obtained about majority rule as an abstract collective choice rule section 3 identifies some alternative inferences that can be made from those results section 4 covers some models that include additional features that are present in political institutions where majority rule is used section 5 concentrates on some alternative election models and equilibrium concepts section 6 focuses on election models with abstentions and or candidate uncertainty about voter behaviour section 7 compares and contrasts models where candidates are certain about what the voters choices will be contingent upon about the choices made by the candidates and models where they are uncertain about those choices section 8 closes the survey by identifying some emerging areas of research

on the evolution of attitudes towards risk in winner take all games abstract a long standing conjecture is that winner take all games such as patent races lead to the survival of risk takers and the extinction of risk averters in many species a winner take all game determines the males right to reproduce and the same argument suggests that males will evolve to be risk takers psychological and sociological evidence buttresses the argument that males are more risk taking than females using an evolutionary model of preference formation we investigate to what extent evolution leads to risk taking in winner take all environments journal of economic literature classification numbers c7 d8

the economics of schooling production and efficiency in public schools n recent years public and professional interest in schools has been heightened by a spate of reports many of them critical of current school policy these policy documents have added to persistent and long standing concerns about the cost effectiveness and fairness of the current school structure and have made schooling once again a serious public issue as in the past however any renewed interest in education is likely to be short lived doomed to dissipate as frustration over the inability of policy to improve school practice sets in this frustration about school policy relates directly to knowledge about the educational production process and in turn to underlying research on schools although the educational process has been extensively researched clear policy prescriptions flowing from this research have been difficult to derive 2 there exists however a consistency to the research findings that does have an immediate application to school policy schools differ dramatically in quality

complexity and competition extensive form market games typically have a large number of noncompetitive equilibria in this paper we argue that the complexity of noncompetitive behavior provides a justification for competitive equilibrium in the sense that if rational agents have an aversion to complexity at the margin then maximizing behavior will result in simple behavioral rules and hence in a competitive outcome for this purpose we use a class of extensive form dynamic matching and bargaining games with a finite number of agents in particular we consider markets with heterogeneous buyers and sellers and deterministic exogenous sequential matching rules although the results can be extended to other matching processes if the complexity costs of implementing strategies enter players preferences lexicographically with the standard payoff then every equilibrium strategy profile induces a competitive outcome

markov equilibria in dynamic matching and bargaining games abstract rubinstein and wolinsky rev econ stud 57 1990 63 show that a simple homogeneous market with exogenous matching has a continuum of non competitive perfect equilibria however the unique markov perfect equilibrium of this model is competitive by contrast in the more general case of heterogeneous markets even the markov property is not enough to guarantee the perfectly competitive outcome we define a market game that allows for heterogeneous values on both sides of the market and exhibit a number of examples of non competitive markov perfect equilibria with and without discounting unlike the homogeneous case these equilibria allow for inefficient trades and for trade at non uniform prices the non competitive equilibrium may be unique

convergence to perfect competition of a dynamic matching and bargaining market with two sided incomplete information and exogenous exit rate abstract consider a decentralized dynamic market with an infinite horizon and incomplete information in which buyers and sellers values for the traded good are private and independently drawn time is discrete each period has length and each unit of time a large number of new buyers and sellers enter the market within a period each buyer is matched with a seller and each seller is matched with zero one or more buyers every seller runs a first price auction with a reservation price and if trade occurs the seller and winning buyer exit with their realized utility traders who fail to trade either continue in the market to be rematched or exit at an exogenous rate we show that in all steady state perfect bayesian equilibria as approaches zero equilibrium prices converge to the walrasian price and realized allocations converge to the competitive allocation

the median voter model in public choice theory the changing perception by public choice theorists about the relevance of the median voter model is a result of excessive extrapolation of the conclusions of theoretical models to the real world early in the 1970s the median voter model was often accepted as implying that the output produced in the public sector was what was most preferred by the median voter this claim is excessive because the median voter model is only a model of demand aggregation under majority rule and has little to say about the supply side of the public sector in the late 1970s many scholars identified several circumstances under which the model would not apply in theory but these critiques of the model were often viewed as reasons to abandon the median voter model altogether the model went from having excessive claims that made the model appear to be more powerful than it really is to excessive claims that made the model appear to be less powerful than it really is these latter claims were often in response to the earlier claims rather than to the model appropriately applied

the flypaper effect identifying areas for further research the flypaper effect literature dates back three decades it is overwhelmingly neo classical in approach attempting to improve the median voter demand model and or temper it with public choice supply side perspectives whilst this approach provided valuable early substantial analytical insights more recent papers seem to have contributed only marginally to an understanding of the flypaper effect if indeed it exists at all hence as well as providing a long overdue comprehensive review of the literature on the flypaper effect this paper identifies more productive avenues for further research

cooperation and punishment under repeated majority voting in light of the extensive theoretical evidence suggesting absence of equilibrium in voting models tullock 1981 asks why so much stability our results suggest the following answer political agents engaged in long term relationships can sustain highly stable allocations if there are strongly held norms for punishment of defectors 1

electoral rule disproportionality and platform polarization despite common perception existing theoretical literature lacks a complete for mal argument regarding the relationship between the electoral rule disproportionality and platform polarization in this paper we build a model that incorporates the disproportionality of the electoral system in a standard downsian electoral competition setup with mainly but not necessarily purely policy motivated parties we first show that in equilibrium platform polarization is decreasing in the level of the electoral rule disproportionality we then argue that the number of parties has a positive effect on platform polarization when polarization is measured by the distance between the two most distant platforms this effect does not hold when polarization is measured by the widely used dalton index constructing a dataset covering more than 300 elections our main theoretical findings are empirically supported pointing towards the electoral rule disproportionality as a major determinant of polarization

the political economy of inaction abstract this paper develops a simple model of political inaction in a two party democracy i e it shows the conditions under which both parties will prefer to live with an unsatisfactory and inefficient status quo rather than to raise an issue the risk of raising the issue to either party is the fear of ending up with the other party s policy for example by losing the electron regarded as even worse than the status quo the model shows that the problem is likely to be particularly serious the more evenly matched is political competition the more risk averse the parties the less voters trust the parties the more divided is public opinion and the more important the issue the model is illustrated with a number of examples of real world inaction e g on fiscal deficits abortion the transition to socialism and the fall of the weimar republic in general the analysis also suggests that over a range more representation of political viewpoints implies a smaller likelihood of political action so that democracy implies a tradeoff between representation and the capacity for political action

decentralized markets and endogenous institutions this paper is concerned with decentralized models of market equilibrium in which the primary interest lies in the nature of the institutions that govern trade there are two separate branches in this literature in the first the institutions that govern trade are taken to be given exogenously the primary motivation for models in this class is essentially the study of comparative institutions in particular the papers are interested in whether there are specific institutions that will generate walrasian prices and allocations approximately when transactions costs are small in the second branch of the literature the institutions that govern trade themselves are made endogenous these models characterize the nature of these endogenously generated institutions and examine their efficiency in environments where transactions costs are small

tiebout bias and the demand for local public schooling institute of university of ii business and california economic research berkeley center for real estate and urban economics working paper series working paper 86 109 tiebout bias and the demand for local public schooling by daniel l rubinfeld perry shipiro judith roberts these papers are preliminary in nature th urpose 39 to stimulate 39 ussion comment therefore they are not t cited or quoted 39 ny p ation wit express permissio the author graduate school of business administration

spatial models of political competition under plurality rule a survey of some explanations of the number of candidates and the positions they take this paper surveys work that uses spatial models of political competition to explain the number of candidates and the positions that they take in plurality rule elections

retrading in market games when agents are not price takers they typically cannot obtain an efficient real location of resources in one round of trade this paper presents a non cooperative model of imperfect competition where agents can retrade allocations consistent with edgeworth s idea of recontracting we show a there are pareto optimal allocations including competitive equilibrium allocations that can be approximated arbitrarily closely when trade is myopic i e when agents play a static nash equilibrium at every round of retrading b any converging sequence of allocations generated by myopic retrading can be supported along some retrade proof subgame perfect equilibrium path when traders anticipate future rounds of trading

voting competitions with interested politicians platforms do not converge to the preferences of the median voter we examine equilibrium voting strategies for elections with interested politicians facing uncertainty about voter preferences if politicians utilities are defined over the set of strategies that voters select instead of being dependent only on the probability of winning an election equilibrium strategies will diverge instead of converging to the median voter s preferences as long as politicians have different preferences we present conditions i for political compromise and ii for politicians with different utility functions to merge into parties with complete strategic agreement

clientelism and aid abstract using a model of probabilistic voting we analyze the impact of aid on the political equilibrium in the recipient country or region we consider politicians with mixed motives they are interested in promoting social welfare but also value the benefit of holding office we label as clientelistic the politician who most values the benefit of being in power we find that the impact of aid on the political equilibrium and therefore on the quality of policy in the recipient country using utilitarian social welfare as a benchmark ultimately depends on the value of the elasticity of the marginal utility of consumption when elasticity is low the expected policy outcome gets further away from the socially desirable policy set this substitution of policy quality for aid can help to explain the poor performance of aid in improving policy perhaps more surprising is the opposite case which arises for high values of elasticity of marginal utility an increase in aid tilts the equilibrium policy towards the welfare maximizing policy set

evidence on electoral accountability in the u s senate are unfaithful agents really punished many have questioned whether voters are able to hold incumbent officials electorally accountable through a retrospective voting strategy we examine u s senate elections from 1962 to 1990 in forty one states explaining which incumbents ran for reelection and their success in seeking reelection we find that an incumbent s deviation from her state party platform decreases the probability that she will run for reelection and win if she runs furthermore the electoral mechanism is found to be more efficient when voters are better informed finally we find that our divergent party platform model provides a better fit than the median voter model

policy motivation and party differences in a dynamic spatial model of party competition we present a model of party competition that produces more realistic patterns of results than those often emphasized in the literature reversing downs 1957 we assume that parties win elections in order to formulate policies rather than formulate policies in order to win elections voters are modeled first as having perfect information about candidate positions and then under conditions of uncertainty in simulation experiments we show that policy motivation and voter uncertainty can bring about persistent and predictable party differences in sequential majority rule elections as the degree of voter certainty decreases parties diverge towards their optima whereas increases in voter certainty draw parties towards cycles in which party positions vary but predictable issue stances are maintained on the average

elections and income redistribution this paper has analyzed a model of elections in which each candidate selects a reputation for the distribution of income that can be expected if he is elected the first result established that whenever there are three or more groups of voters and no single group has half or more of the voters if the candidates believe that the voters choices are determined solely by the candidates redistributional reputations then there is no electoral equilibrium the candidates expectations about the voters choices were then reformulated using a qualitative response model the next result established that this alternative model leads to the existence of electoral equilibria the remainder of the paper analyzed the nature of these equilibria for any given electorate among other things the results established that there is always a unique equilibrium provided a simple procedure for finding the precise location of this equilibrium and showed that this location implicitly maximizes the sum of the voters utility functions on the possible income distributions the penultimate sections provided some simple examples which illustrate the main results in the paper and a discussion of these results in terms of the politics of redistribution

incumbency effects in political campaigns in this paper we examine two effects of incumbency first an incumbent may have an advantage in creating a favorable image in the eyes of the voters second the incumbent may have to chose a position before the challenger this second aspect of incumbency is modelled as stackelberg leadership in the model two candidates run for election by choosing a position in an ideological spectrum voters care about candidates chosen positions as well as non policy attributes of candidates which we call charisma charismata are not known when candidates choose policy positions they are only revealed on election day so that winning is not usually a certain prospect candidates care about the probability of winning but they also dislike compromising their own ideals

do voters affect or elect policies evidence from the u s house there are two fundamentally different views of the role of elections in policy formation in one view voters can affect candidates policy choices competition for votes induces politicians to move toward the center in this view elections have the effect of bringing about some degree of policy compromise in the alternative view voters merely elect policies politicians cannot make credible promises to moderate their policies and elections are merely a means to decide which one of two opposing policy views will be implemented we assess which of these contrasting perspectives is more empirically relevant for the u s house focusing on elections decided by a narrow margin allows us to generate quasi experimental estimates of the impact of a randomized change in electoral strength on subsequent representatives roll call voting records we find that voters merely elect policies the degree of electoral strength has no effect on a legislator s voting behavior for example a large exogenous increase in electoral strength for the democratic party in a district does not result in shifting both parties nominees to the left politicians inability to credibly commit to a compromise appears to dominate any competition induced convergence in policy

market clearing and price formation abstract considered here is decentralized exchange of privately owned commodity bundles voluntary transactions take the form of repeated bilateral barters under broad and reasonable hypotheses the resulting process converges to competitive equilibrium price taking behavior is not assumed prices emerge over time they need neither be anticipated nor known at any interim stage