the value added of laboratory experiments for the study of institutions and common pool resources abstract this article provides an overview of the effects of communication on experimental studies of behavior and outcomes in common pool resource cpr dilemmas aggregate outcomes in cpr dilemmas without communication approximate predictions of non cooperative game theory but allowing cheap talk results in higher outcomes when exogenous rules are monitored at realistic levels subjects cheat even though following the rule would generate optimal outcomes if given the opportunity experimental subjects will devise their own rule systems and impose sanctions on each other these findings complement field research on more complex resources and communities by confirming the critical importance of communication and endogenous rule formation

head enders as stationary bandits in asymmetric commons comparing irrigation experiments in the laboratory and the field abstract the emergence of large scale irrigation systems has puzzled generations of social scientists since they are particularly vulnerable to selfish rational actors who might exploit inherent asymmetries in the system e g simply being the head ender or who might free ride on the provision of public infrastructure as part of two related research projects that focus on how subtle social and environmental contextual variables affect the evolution and performance of institutional rules several sets of experiments have been performed in laboratory settings at arizona state university and in field settings in rural villages in thailand and colombia in these experiments participants make both a decision about how much to invest in public infrastructure and how much to extract from the resources generated by that public infrastructure with both studies we find that head enders act as stationary bandits they do take unequal shares of the common pool resource but if their share is very large relative to downstream participants shares the latter will revolt therefore for groups to be successful head enders must restrain themselves in their use of their privileged access to the common pool resource the comparative approach shows that this result is robust across different social and ecological contexts

brand names and barriers to entry in political markets the most obvious implication of this discussion is that barriers to entry in politics will raise the costs of governments transferring wealth more generally it will raise the cost of public provision of goods and services in the case of transfers the inefficiency created by barriers depends on whether one values government transfers the total transfer the transfer to the beneficiaries plus the politician s commission is maximized by the politician who can create support the most efficiently for other governmental services which are viewed as efficiency creating e g national defense these barriers reduce the amount of a valuable output we desire to purchase this result also supplies a possible efficiency explanation for the limitation on the number of terms imposed on the presidency and many governorships brand names are not really the barriers information costs are what cause brand name to be used and are the more fundamental barrier to entry what we are arguing is that private and not public organizations can in certain respects better overcome these information costs

potential disasters can turn the tragedy into success this paper presents a novel experimental design that allows testing how users of a common pool resource respond to an endogenously driven drastic drop in the supply of the resource we show that user groups will manage a resource more efficiently when confronted with such a non concave resource growth function compared to groups facing a logistic growth function even among cooperative groups there is a significant behavioral difference although theory predicts there should not be we argue that effectiveness of communication is endogenous to the problem the threat of reaching a critical tipping point beyond which the growth rate will drop drastically triggers more effective communication within the group enabling stronger commitment for cooperation and more knowledge sharing which together explains the results we argue that the insights generated by this study can be seen as one of many but nevertheless important contributions towards an increased understanding of the interactions between human behavior and the environment in common pool resource systems

spatial equilibrium with entry this paper examines spatial equilibrium in political competition when established parties choose their platforms competitively while rationally anticipating entry of a vote maximizing third party the resulting equilibrium is substantially different from the hotelling median equilibrium established parties are spatially separated and third parties will generally lose the election this provides one theoretical explanation for the stability of two party systems namely that non cooperative behavior between established parties can effectively prevent third parties from winning

final voting in legislatures in representative democracies such as the united states legislatures provide the transmission mechanism through which pressure from private interests becomes public policy considerable attention has been given in the literature to explanations of the relevant forces that appear to be driving the legislative process for example much research has focused on the relative impact of economic vs ideological influences on congressional voting behavior in this approach the way that legislators vote on proposed legislation is modeled as a function of the preferences of various economic and ideological interests groups including the legislator s own preferences for wealth and ideology james kau and paul rubin 1979 joseph kalt and mark zupan 1984 sam peltzman 1985 missing from this approach is the idea that when legislatures are the transmission mechanism they are costly and imperfect organizations for generating political influence gary becker 1983 as such rules and institutions will emerge that are related to problems of internal control within the organization of a legislature in this paper we focus on the role of floor voting from the standpoint of legislator organization and control we seek to expand the interpretation of the meaning of floor voting activity by examining the timing sequence and outcomes of such votes specifically we look at final floor voting in the u s congress the patterns described in the analysis below suggest that a broader analytical perspective on the economic function of floor voting is required the findings also suggest that to identify more precisely the forces that are driving legislator voting behavior it is important to recognize the role of legislative transactional costs and institutional constraints in section i the conceptual framework for the empirical results is discussed in more detail the purpose is not to develop a fullblown theory of legislative organization rather it is to focus the reader s attention on several hypotheses about the function of final floor voting as a device for controlling legislator behavior within the legislature empirical results including an explanation of the timing and sequence of final votes on bills are reported in section ii the data for these tests are drawn from legislative activities in the u s house of representatives during the 96th and 98th congresses some concluding remarks are offered in section iii

capture and ideology in the economic theory of politics the economic theory of regulation long ago put public interest theories of politics to rest these theories have correctly been viewed as normative wishings rather than explanations of real world phenomena they have been replaced by models of political behavior that are consistent with the rest of microeconomics anthony downs 1957 james buchanan and gordon tullock 1965 george stigler 1971 sam peltzman 1976 recently however debate has arisen over whether some version of a public interest theory of regulation will have to be readmitted to our thinking about actions and results in the political arena what is at issue is the empirical importance of the altruistic publicly interested goals of rational actors in determining legislative and regulatory outcomes james kau and paul rubin 1979 kalt 1981 peltzman 1982 this study assesses the nature and significance of publicly interested objectives in a particular instance of economic policymaking u s senate voting on coal strip mining regulations the existence of such objectives is of course no contradiction of the economic view of human behavior kenneth arrow 1972 gary becker 1974 and may well be rooted in genetic biological history becker 1976 jack hirshleifer 1978 generally however individuals altruistic publicly interested goals have been given little attention this reflects the judgment that such goals are so empirically unimportant as to allow the use of occam s razor in positive models or well founded apprehensions that these goals are unusually difficult to identify measure and analyze notwithstanding the latter problem we find that approaches which confine themselves to a view of political actors as narrowly egocentric maximizers explain and predict legislative outcomes poorly the tracking and dissecting of the determinants of voting on coal strip mining policy suggest that the economic theory of politics has been prematurely closed to a broader conception of political behavior

household balance sheet channels of monetary policy a back of the envelope calculation for the euro area abstract this paper formulates a back of the envelope approach to study the effects of monetary policy on household consumption expenditures we analyze several transmission mechanisms operating through direct partial equilibrium channels intertemporal substitution and net interest rate exposure and indirect general equilibrium channels net nominal exposure as well as wealth collateral and labor income channels the strength of these forces varies across households depending on their marginal propensities to consume their balance sheet composition the sensitivity of their own earnings to fluctuations in aggregate labor income and the responsiveness of aggregate earnings asset prices and inflation to monetary policy shocks we quantify all these channels in the euro area by combining micro data from the hfcs and the eu lfs with structural vars estimated on aggregate time series we find that the indirect labor income channel and the housing wealth effect are strong drivers of the aggregate consumption response to monetary policy and explain the cross country heterogeneity in these responses

an explanation for why senators from the same state vote differently so frequently abstract this paper explains why rational well informed voters elect politicians with divergent platforms given well defined constituencies and the costliness of any individual politician creating transfers across all interest groups we show that different politicians from the same district can successfully represent vastly different constituencies and still have each politician producing the support maximizing level of transfers our explanation focuses on how obtaining wealth transfers reduces successful constituencies returns to obtaining additional transfers the evidence strongly rejects alternative explanations based upon the median voter and polarized policy preference approaches

televising legislatures some thoughts on whether politicians are search goods the evidence that televising legislative sessions helps politicians from homogeneous districts where everyone agrees with his positions but hurts politicians from heterogeneous districts does not differentiate between whether politicians are search or experience goods while evidence does exist that politicians are search goods e g lott 1987b it relies on the presence of the last period problem if the conclusion that politicians are search goods is correct it has important implications because it contradicts the commonly held belief that it is the threat of re election that prevents politicians from behaving opportunistically it also indicates that there are fundamental differences between firm and political brand names

governing complex commons the role of communication for experimental learning and coordinated management in this paper we build on common pool research and adaptive management to increase our understanding on if and how communication between resource users affects their joint ability to learn about and manage complex ecological resources more specifically we study the role of user communication in relation to learning through continual experimentation when managing a complex resource system involving resource interdependencies for this purpose we designed a laboratory experiment where we tested the effect of user communication over time in a setup with two interdependent resources and where resource access is asymmetrical one resource is shared and the other is private our results indicate that communication through its interaction with experimental learning is more multifaceted than what previous experimental studies on commons dilemmas suggest we show for example that in communicating groups the likelihood of successful resource management increases but this effect is mostly dominant in earlier periods when resource dynamics are unknown we hypothesize however that communication stimulates continual improvements by fine tuning of management through experimental learning and coordinated resource extraction furthermore we hypothesize that in communicating groups the need to quickly gain a basic understanding of the dynamics overshadows not only the devotion to improve management of the private resource but also the potential tensions brought by the asymmetry in resource access

a critical review and an extension of the political shirking literature after substituting actual and real changes for proposed and nominal changes in budgetary and employment levels it is clear that the size and scope of the federal leviathon had not been reduced over 1982 83 it is also clear that the agencies which witnessed real budget cuts over this period were of minor importance in terms of the total u s budget future research on why only small agencies receive real budget cuts will provide us with a better understanding of the budgetary process

a reexamination of the principal agent relationship in politics abstract that senators from the same state often have a large difference in their ideological voting records has proven inconvenient for a literature that has largely relied on a median voter model of elections one exception is palfrey review of economic studies 1984 51 139 156 whose analysis implies the hypothesis that the expected difference in such voting records varies directly with the variance of that state s density function of constituent ideological preferences this paper provides empirical testing consistent with this hypothesis the paper then argues that currently accepted methodology for measuring senatorial shirking is systematically biased towards indicating shirking and provides empirical analysis consistent with this argument

the influence of ideology on congressional voting i introduction the question of what determines congressional voting on legislation has inspired a number of recent empirical analyses all are in agreement that congressional voting on specific bills is correlated with the economic self interest of the representative s constituents and a measure of the representative s ideology as indicated by his broader voting record however the interpretation of the empirical results regarding the influence of ideology has generated more debate than consensus in the current literature kau and rubin 1979 find evidence that a congressman s ideology influences his voting but also find evidence for an alternative but not mutually exclusive hypothesis that a congressman s rating by ideological groups reflects membership in a logrolling coalition kalt and zupan 1984 argue that although a representative s votes are likely to reflect the economic interests and the ideology of his constituents the weak incentive for the constituent principal to monitor the voting behavior of his representative agent gives the representative the opportunity to shirk or vote according to his personal ideology rather than his constituents both nelson and silberberg 1987 and mcarthur and marks 1988 find that the degree of shirking increases as the opportunity cost of shirking decreases in contrast to the above findings peltzman 1984 argues that ideological voting by congressmen need not necessarily reflect shirking but instead may be a way for the representative to cheaply provide his constituents with information about his general position on issues what appears to be shirking allowed by an imperfect principal agent relationship may instead be signaling designed to at least partially overcome the imperfect nature of the relationship lott 1987 extends peltzman s signaling argument by hypothesizing that if politicians are viewed by constituents as search goods rather than experience goods then they will have an incentive to establish a political brand name by establishing a consistent ideological voting record dougan and munger s 1989 approach is similar to lott s they argue that politicians with strongly held views that match those of their constituents make ideal representatives because they are less likely to vote against their constituents interests when pressured by special interest groups an incumbent therefore has an incentive to invest in reputational capital by maintaining the consistency over time of his broader voting record because this reputational capital generates quasi rents in electoral competition with candidates who possess less of it neither lott nor dougan and munger find evidence of shirking in their analyses of congressmen s broader voting records as measured by ideological groups ratings dougan and munger also develop a variable intensity of commitment version of the reputational capital hypothesis this version contends that voters with unambiguously liberal or conservative ideologies may prefer a candidate whose voting record indicates that his views are more extreme than their own such a zealous candidate voters believe is even less likely to be influenced by special interest groups a congressman serving an unambiguously liberal or conservative constituency therefore has an incentive to establish and maintain an extremely ideological overall voting record in contrast a congressman serving a constituency with centrist ideological preferences has an incentive to establish an overall voting record that matches his constituency s ideological leanings the systematic deviation of a congressman s voting record from his constituents preferences when near either extreme of the ideological spectrum is not inconsistent with a faithful principal agent relationship one cannot help but be struck by the observation that those researchers finding evidence consistent with shirking studied voting on specific legislation whereas those researchers finding no evidence of shirking studied representatives broader voting records as measured by ideological ratings

the ideological component of senate voting different principles or different principals evidence exists on both sides of the question of whether or not legislator specific ideologically driven shirking of constituent interest occurs in this paper we use a well known model of such shirking by senators as our point of departure and add measures of inter state constituent interests the role of campaign contributions and hence the importance of whether or not senators are up for reelection we find some evidence that the model provides a stronger explanation for senators up for reelection than for those who are not and that campaign contributions help determine voting decisions by these legislators finally accounting for inter state constituent interests shirking is not a significant variable in the voting decisions of senators facing reelection thus it appears that the reelection interests of some senators have been mistaken for ideologically driven shirking

a test for pure or apparent ideology in congressional voting a politician s preferences do matter he is not simply a captured agent speaking only for his constituent s interests some latitude exists for him to shirk his responsibility to serve his constituents interests and to cast votes consistent with his own personal ideology more important to our understanding and modeling of voting behavior shirking for ideological consumption is seen to increase with age once a threshold of about 53 years old is reached shirking is not a phenomena of the politicians final term in office rather it likely exists in every term and begins to increase significantly two terms prior to the expected horizon sixty percent of the sample of senators were seen to exhibit increasing ideological consumption with age

partisan cycles in congressional elections and the macroeconomy in the postwar united states the president s party has always done worse in the midterm congressional elections than in the previous congressional election republican administrations exhibit below average and democratic administrations above average economic growth in the first half of each term whereas in the latter halves the two see equal growth our rational expectations model is consistent with these two regularities in presidential elections voters choose between two polarized candidates they then use midterm elections to counterbalance the president s policies by strengthening the opposition in congress since presidents of different parties are associated with different policies our model predicts a spurious correlation between the state of the economy and elections our predictions contrast with those of retrospective voting models in which voters reward the incumbent if the economy is doing well before the election our model performs empirically at least as well as and often better than alternative models

ideology and legislator shirking we argue that legislator shirking voting on the basis of personal ideology rather than the interests of one s constituents can exist but its appearance should conform to the law of demand we test and confirm this theory using votes on defense expenditure bills in the u s senate in 1982 we assume the cost of shirking is relatively higher on narrowly focused bills on specific weapons systems with well defined beneficiaries and relatively lower on general defense expenditure bills with uncertain final distribution of funds we find greater influence for senators ideology in general versus specific bills

on the mis measurement of legislator ideology and shirking in this paper we show that current statistical measures of legislator s shirking are implicitly based on the electoral concept of a unique majority rule equilibrium point in the policy space where elections are contested we note that such equilibria do not exist generically and present statistical results showing that cross sectional regressions where legislators voting indices are predicted by district average demograhic and economic data are mis specified we also discuss a weaker equilibrium construct the uncovered set and present statistical evidence showing that differences in voting behavior between senators from the same state are positively related to the heterogeneity of the electorate we argue that current evidence alleged to show shirking by senators is equally consistent with senators who perfectly represent an idiosyncratic constituency that cannot be represented by district average data