collusion and discrimination in organizations abstract in a principal multi agent setting we investigate how optimal contracts should be modified under relative performance evaluation when agents collude agents may write side contracts which are not contingent on their effort choices but indirectly control them through side transfers we show that the optimal collusion proof contract is to introduce a discriminatory policy in the sense that the wage schemes offered to agents depend on their identities even if they are identical with respect to productive abilities such discriminatory wage schemes explain the organizational strategy of divide and conquer as an optimal response to collusion

risk allocation and the costs and benefits of public private partnerships we study the agency costs of delegated public service provision focusing on the link between organizational forms and uncertainty at project implementation we consider a dynamic multitask moral hazard environment where the mapping between efiort and performance is ex ante uncertain but new information may come along during operations our analysis points out at the e ciency gains that bundling planning and implementation as under public private partnerships can bring in terms of better project design and lower operational costs bundling also results in increasingly better performance as uncertainty is reduced by growing experience in the sector bundling should instead be viewed with caution when the private sector seeks to radically innovate on public service provision or to introduce new services but lacks the knowledge and expertise to anticipate the impact of the innovative design procedure technology on the cost of operations the compounding of asymmetric information ex post plus moral hazard and renegotiation may generate diseconomies of scope in agency costs which for high operational risk can make unbundling optimal in this context the use of private flnance can help re establishing the beneflt of bundling only if lenders have su cient expertise to help assessing project risks

limited intertemporal commitment and job design abstract the paper shows that some of the guidelines for job design that emerge from a static analysis of the multitask agency problem can be overturned in a dynamic model with limited commitment static analyses have shown that it is optimal to assign workers sole responsibility for tasks and to allocate them tasks which are as homogeneous as possible with respect to the ease of measuring performance our dynamic analysis demonstrates that it can instead be optimal to make workers jointly responsible for tasks and to make their task portfolios as similar to one another but as internally diverse as possible

performance comparisons and dynamic incentives it is well known that comparative performance information cpi can enhance efficiency in static principal agent relationships by improving the trade off between insurance and incentives in the design of explicit contracts in dynamic settings however there may be implicit as well as explicit incentives for example managerial career concerns and the ratchet effect in regulation we show that the dynamic effects of cpi on implicit incentives can either reinforce or oppose the familiar static insurance effect and in either case can be more important for efficiency the overall welfare effects of cpi are thus ambiguous and can be characterized in terms of the underlying information structure

determinants of violent and property crimes in england and wales a panel data analysis we examine various determinants of property and violent crimes by using police force area level pfa data on england and wales over the period of 1992 2008 our list of potential determinants includes two law enforcement variables namely crime specific detection rate and prison population and various socio economic variables such as unemployment rate real earnings proportion of young people and the gini coefficient by adopting a fixed effect dynamic gmm estimation methodology we attempt to address the potential bias that arises from the presence of time invariant unobserved characteristics of a pfa and the endogeneity of several regressors there is a significant positive effect of own lagged crime rate the own lagged effect is stronger for property crime on an average than violent crime we find that on an average higher detection rate and prison population leads to lower property and violent crimes this is robust to various specifications however socio economic variables with the exception

discretion and incentives in organizations we analyze the link between workers discretion and incentives in an organization that lasts for several periods in a long lasting affiliation it is possible for the principal to learn and update her beliefs about essential characteristics associated with either the job or the agent this learning possibility has an important effect on the link between workers discretion and incentives

crime rates male youth unemployment and real income in australia evidence from granger causality tests this article applies granger causality tests to examine the relationship between seven different categories of property crime and violent crime against the person male youth unemployment and real male average weekly earnings in australia from 1964 to 2001 within a cointegration and vector error correction framework it is found that fraud homicide and motor vehicle theft are cointegrated with male youth unemployment and real male average weekly earnings however there is no evidence of a long run relationship between either break and enter robbery serious assault or stealing with male youth unemployment and real male average weekly earnings

male unemployment and crime in england and wales this paper employs county level data to investigate the relationship between crime and male adult and youth unemployment in britain our results indicate that there is a systematic positive relationship between most crime and male unemployment regardless of age

collusion under asymmetric information when applied to groups the revelation principle postulates a bayesian nash behavior between agents their binding agreements are unenforceable or the principal can prevent them at no cost we analyze instead a mechanism design problem in which the agents can communicate between themselves and collude under asymmetric information we characterize the set of implementable collusion proof contracts both when the principal offers anonymous and nonanonymous contracts after having isolated the nexi and the stakes of collusion we proceed to a normative analysis perform some comparative statics discuss our concept of collusion proofness and provide some insights about transaction costs in side contracting

collusion and renegotiation in a principal supervisor agent relationship this paper describes a principal agent relationship with a supervisor who has information about the agent the agent and the supervisor have the possibility to collude and misinform the principal from the literature we know that there exists an optimal contract which excludes collusion in equilibrium the optimal contract however is ex post inefficient and creates scope for renegotiation if renegotiation is allowed then under some parameter constellations the optimal contract is a contract which necessarily induces collusion the paper thus shows that the principal s behavior toward ex post inefficiencies may determine whether collusion occurs in equilibrium

calculating the welfare costs of import restrictions in the imperfect substitutes model this paper supplies equations for partial equilibrium calculations of the welfare effects of tariffs and quotas when the imported good and the competing domestic good are imperfect substitutes in demand the equations take into account the response of the price of the domestic substitute although other studies have acknowledged this response they have failed to account for it in their welfare calculations to demonstrate the importance of this response it is shown how it affects the calculations for the welfare costs of tariffs and quotas on us imports of footwear it is shown that ignoring the response of domestic prices leads to significant overstatement of the welfare costs of tariffs and significant understatement of the welfare costs of quotas for the industry

collective organizations versus relative performance contracts inequality risk sharing and moral hazard abstract this paper studies collective economic organizations that share risk and mitigate moral hazard and compares them with relative performance contracts information constrained optimal distributions of organizations and contracts are shown to be functions of the underlying primitives in particular the distribution of pareto weights and hence degree of inequality internal inequality of a potential local group is a force for collective organization that is multi agent organizations exist in order to extract wealth from some but not necessarily all members the group organization is also shown to be information constrained pareto optimal at extremes of local wealth relative to an outsider but the group organization is susceptible to both agents simultaneously deviating colluding against the outsider and this distortion makes an individualistic relative performance contract an attractive alternative more generally organizations contracts and allocations are jointly determined these implications could be distinguished in cross sectional time series data journal of economic literature classification numbers d70 d82

the economics of career concerns part i comparing information structures many incentives in organizations arise not through explicit formal incentive contracts but rather implicitly through career concerns this paper models career concerns through agents trying to manipulate the market assessment of their future productivity the information flow from current actions to market assessment is therefore crucial in determining the nature of these incentives improved information may either increase or reduce incentives the impact of information provides a major distinction between the explicit and implicit incentives model the paper derives general results on comparisons of information structures which serve as counterparts to the standard results on information structures in the principal agent model sufficient statistic impact of a blackwell garbling comparison of inclusive information structures 1999 the review of economic studies limited

information extraction and norms of mutual protection abstract we study a class of moral hazard economies in which a principal interacts with several agents in these economies first best allocations can be implemented via full information extraction when side trades between agents can be restricted when instead side trades cannot be restricted the ability of the principal to extract information from the agents is severely hampered in this context side trades take the form of informal contracts which can be directly interpreted as norms of mutual protection which are indeed quite common among extended family members as well as inside various social political and religious groups

youth unemployment and crime in the english regions and wales this paper investigates the relationship between unemployment and crime in england and wales taking account of both age and gender in the unemployment measures the study is for 1985 95 and is disaggregated to the regional level we allow for different types of crime and the deterrence effects of detection and punishment we also consider the relationship between ethnicity and crime in the light of the contentious public debate on this issue our results indicate that there is a systematic positive relationship between burglary rates and male unemployment regardless of age however we find that while youth unemployment is consistently and positively related to criminal damage and robbery rates there is no systematic evidence of a relationship between adult male unemployment and these specific crimes instead our evidence supports a positive link between adult unemployment and theft we find no compelling evidence of a link between ethnicity and crime

unemployment and crime rates in the post world war ii united states a theoretical and empirical analysis using annual time series data for the united states 1946 1982 two hypotheses are tested 1 the level of the unemployment rate in any given year will have a negative partial contemporaneous effect on detrendedfluctuations increases or decreases in seven index crime rates homicide rape aggravated assault robbery burglary larceny theft and motor vehicle theft in that year 2 unemployment rate fluctuationsfrom one year to the next will have a positive partial effect on detrended crime rate fluctuations in the next year these hypotheses are developed from a theoretical model that identifies the former with a criminal opportunity effect and the latter with a criminal motivation effect of aggregate unemployment on crime for burglary robbery and larceny theft empirical support is found for the expected pattern of partial effects however the relative sizes of the effects are such that the total impacts of unemployment through both partial effects are negative in addition only the negative levels effect is exhibited for homicide and motor vehicle theft while rape and aggravated assault show no consistent association with either levels orfluctuations in the unemployment rate interpretations for these findings are discussed

joint liability versus individual liability in credit contracts abstract i offer an explanation for the coexistence of joint liability and individual liability microcredit contracts i show that both contracts maximize welfare when credit is rationed due to limited liability but for different borrowers borrowers monitor each other when liability is joint while the lender monitors individual loans joint liability offers poorer borrowers larger loans with less monitoring effort than would have to be exerted by the lender individual liability offers the wealthier among credit constrained borrowers larger loans even without monitoring the theory explains why individual loans serve the wealthier among poor borrowers and are larger and why businesses funded with individual loans grow more

do doctors respond to financial incentives uk family doctors and the gp fundholder scheme abstract the 1991 reforms to the uk nhs created a group of buyers of hospital care from amongst primary care physicians the implementation of the reforms was such that these buyers had incentives to increase their use of hospital services prior to entering the scheme in order to inflate their budgets it has been argued that non financial motives would limit such behaviour the paper shows that these health care providers did respond to the financial incentives offered by the scheme increasing hospital based activity prior to entry and so inflating their budgets upwards for the duration of the fundholding scheme

help and factionalism in politics and organizations whether in electoral politics or promotions within organizations players often face the dilemma of whether to enter the contest or to assist other candidates this article analyzes incentives in a rank order tournament when the winner has control over resources that he can distribute to his supporters some players may then be encouraged to help others in exchange for paybacks resulting in factionalism with leaders and supporters sorted by ability the number and the size of factions depend on the reward structure of the contest and the distribution of abilities these implications are corroborated by data on u s gubernatorial primary elections

endogenous groups and dynamic selection in mechanism design abstract we create a dynamic theory of endogenous risk sharing groups with good internal information and their coexistence with relative performance individualistic regimes which are informationally more opaque inequality and organizational form are determined simultaneously numerical techniques and succinct reformulations of mechanism design problems with suitable choice of promised utilities allow the computation of a stochastic steady state and its transitions regions of low inequality and moderate to high wealth utility promises produce the relative performance regime while regions of high inequality and low wealth produce the risk sharing group regime if there is a cost to prevent coalitions risk sharing groups emerge at high wealth levels also transitions from the relative performance regime to the group regime tend to occur when rewards to observed outputs exacerbate inequality while transitions from the group regime to the relative performance regime tend to come with a decrease in utility promises some regions of inequality and wealth deliver long term persistence of organization form and inequality while other regions deliver high levels of volatility

bundling decisions in procurement auctions with sequential tasks abstract this paper investigates the principal s bundling decision during a procurement auction for a project consisting of two sequential tasks in which task externality exists and information arrives sequentially we show that although increasing the number of bidders in the market for the second task always tilts the principal s choice toward unbundling increasing the number of consortiums that can perform both tasks tilts the principal s preference toward bundling if the externality is negative

beneficial collusion in corruption control the case of nonmonetary penalties abstract we analyze a corruption model where a principal seeks to control an agent s corruption by supplementing a costless noncollusive outside detector such as the media with a collusive internal supervisor the principal s objective is to minimize the overall costs made up of enforcement costs and social costs of corruption if the penalties on the corrupt agent and a failing supervisor are nonmonetary in nature and yet the two parties can engage in monetary side transfers the principal may stand to benefit by allowing supervisor agent collusion this benefit may even prompt the principal to actively encourage collusion by hiring a dishonest supervisor in strict preference over an honest supervisor

collusion delegation and supervision with soft information this paper derives an equivalence principle between organizational forms of supervisory and productive activities we consider an organization with an agent privately informed on his productivity and a risk averse supervisor getting signals on the agent s type in a centralized organization the principal can communicate and contract with both the supervisor and the agent however these two agents can collude against the principal in a decentralized organization the principal only communicates and contracts with the supervisor who in turn sub contracts with the agent we show that the two organizations achieve the same outcome we discuss this equivalence and provide various comparative statics results to assess the e ciency of supervisory structures

role of linking mechanisms in multitask agency with hidden information we investigate the adverse selection problem where a principal delegates multiple tasks to an agent we characterize the virtually implementable social choice functions by using the linking mechanism proposed by jackson and sonnenschein 2007 that restricts the message spaces the principal does not require any incentive wage schemes and can therefore avoid any information rent and welfare loss we show the resemblance between the functioning of this message space restriction and that of incentive wage schemes we also extend the results of the single agent model to the multi agent model

to build or not to build normative and positive theories of public private partnerships abstract this paper analyzes whether the two tasks of building infrastructures which are socially useful in providing public services and managing these assets should be bundled or not when performance contracts can be written both tasks should be performed altogether by the same firm if a better design of the infrastructure helps also to save on operating costs otherwise tasks should be kept apart and undertaken by different units in incomplete contracting environments we isolate conditions under which either the traditional form of public provision of services or the more fashionable public private partnership emerges optimally the latter dominates when there is a positive externality and the private benefits from owning assets are small enough finally we take a political economy perspective and study how incentive schemes are modified under the threat of capture of the decision makers much of the gains from bundling may be lost in this case

exact consumer s surplus and deadweight loss consumer s surplus is a widely used tool in applied welfare economics both economic theorists and cost benefit analysis often use consumer s surplus despite its somewhat dubious reputation the basic idea is to evaluate the value to a consumer or his willingness to pay for a change in price of a good from say pricep to pricep because price changes affect consumer welfare an evaluation of this effect is often a key input to public policy decisions yet consumer s surplus is probably the most controversial of widely used economic concepts both paul samuelson and ian little conclude that the economics profession would be better off without it it is my feeling of the situation that substantial agreement exists on the correct quantities to be measured the amount the consumer would pay or would need to be paid to be just as well off after the price change as he was before the price change the quantities correspond to john hicks compensating variation measures an alternative measure which takes ex post price change utility as the basis of comparison is hicks equivalent variation the controversy arises in the measurement of these quantities the usual measurement procedure is to use the area to the left of the marshallian market demand curve between two price levels jules dupuit originated this measure of welfare change and alfred marshall and hicks derived appropriate conditions for its use the primary condition for the area to the left of the demand curve to correspond to the compensating variation is to have constant marginal utility of income marshall gave this condition and if it holds the same quantity will be derived as the area to the left of the compensated hicksian demand curve this area to the left of the compensated demand curve is exactly what the compensating variation and equivalent variation measure thus the constant marginal utility of income is a sufficient condition for marshallian consumer s surplus to be equal to hicks consumer s surplus in this case arnold harberger s plea to use the welfare triangle as one half times the product of the price change times the quantity change to measure deadweight loss corresponds to the correct theoretical amount of welfare change in a recent paper robert willig derives bounds for the percentage difference between the correct measure of either the compensating or equivalent variation and the marshallian measure derived form the market demand curve his bounds which depend on the income elasticity of demand for the single good in the region of price change being considered as well as the proportion of the consumer s income spent on the good demonstrate that the marshallian consumer s surplus is often a good approximation to hicks consumer s surplus the fact that the proportion of the consumer s income spent matters as well as the income elasticity was first pointed out by harold hotelling willig contends that the approximation error will be less than the errors involved in estimating the demand curve thus he hopes to remove the need for apology that applied economists often need to give to theorists who remark on the inappropriateness of using marshallian consumer s surplus to measure welfare change however in this paper i show that for the case primarily considered by willig of a single price change which is also the situation in which consumer s surplus is often used in applied work no approximation is necessary professor of economics massachusetts institute of technology and research associate national bureau of economic research i would like to thank peter diamond erwin diewert daniel mcfadden robert merton robert solow hal varian joel yellin and the referees for help and comments research support from the national science foundation is acknowledged the reason that we still have two rather than one of samuelson s six measures of consumer s surplus arises from an index number problem of the correct basis for the welfare comparison i will give both measures but plan to concentrate on the compensating variation

collusion in organizations the principal agent theory developed in the 1980s has produced a large set of insights for understanding how contracts can be established within organizations this theory explains how a principal who offers a contract to an agent should structure this contract to overcome at least partially the asymmetries of information he faces by now optimal contracts with adverse selection or hidden knowledge with moral hazard or hidden action or with nonverifiability by a third party of some variables known ex post by both the principal and the agent are relatively well understood despite insightful extensions to multiagent or multiprincipal organizations this body of knowledge falls short of a comprehensive theory of organizations one major reason beyond the restrictive nature of the organizations studied lies in the noncooperative approach generally followed to model multiagent settings indeed in this standard paradigm the cooperation of agents desired by the principal can be induced by the contracts he offers to the agents each of them maximizing his own welfare given the behavior of the other agents what remains is that the principal has complete control of the game played by the agents unwanted communication or side contracting between agents can be prevented this is a rather unrealistic assumption contract theory teaches us that the principal structures the contracts so as to minimize the informational rents given up to the agents because of their informational advantages it is quite natural to expect a collective reaction on the part of the agents to protect their rents we need to understand how agents can react to the rules of an organization and beyond to understand how a principal who is aware of the incentives for collusion should design the organization modeling coalitional or collusive behavior and characterizing the regulatory responses to such behavior is a major task of organization theory the empirical relevance of this line of work is easy to establish a clear example is that of auctions for which the occurrence of cooperative behavior between bidders is a general and well documented phenomenon see porter and zona 1993

juvenile crime and punishment evidence from japan over the last decade juvenile crime has become a serious social problem in japan the juvenile law was revised in 2001 to impose harsher punishment on juvenile offenders this revision makes it possible to impose criminal punishment on 14 and 15 year old criminal offenders while those offenders aged 16 19 have always faced criminal punishment both before and after the revision using this revision as a natural experiment this study conducts a difference in differences estimation to examine the effect of punishment on juvenile crime the analysis provides evidence that punishment can deter juvenile crime in addition this research examines the criminal behaviour of 13 year olds who face no change in punishment but who soon will in the near future the results suggest that the revision also had a negative impact on the criminal behaviour of these younger offenders

the provision of incentives in firms i ncentives are the essence of economics despite many wide ranging claims about their supposed importance there has been little empirical assessment of incentive provision for workers the purpose of this paper is to critically overview existing work on the provision of incentives since the interests of workers and their employers are not always aligned a large theoretical literature has emphasized how firms design compensation contracts to induce employees to operate in the firm s interest this literature has reached into many areas of compensation and has pointed to a multitude of different mechanisms that can be used to induce workers to act in the interests of their employers these include piece rates options discretionary bonuses promotions profit sharing efficiency wages deferred compensation and so on my objective here is to evaluate this literature in the light of a growing empirical literature on compensation where possible i will address the literature from two perspectives first an underlying assumption of this literature is that individuals respond to contracts that reward performance accordingly i consider whether agents behave in this way and whether these responses are always in the firm s interest second i address whether firms write contracts with these responses in mind in other words do contracts look like the predictions of the theory incentives are provided to workers

the tenuous trade off between risk and incentives empirical work testing for a negative trade off between risk and incentives has not had much success the data suggest a positive relationship between measures of uncertainty and incentives rather than the posited negative trade off i argue that the existing literature fails to account for an important effect of uncertainty on incentives through the allocation of responsibility to employees when workers operate in certain settings firms are content to assign tasks to workers and monitor their inputs by contrast when the situation is more uncertain they delegate responsibility to workers but to constrain their discretion base compensation on observed output

impatience reputation and offending reconviction rates for offenders are high despite sentence severity increasing with the number of convictions the standard one shot model of crime provides little scope for exploring persistence effects although recent papers by emons and others have sought to put offending decisions into a more dynamic setting this article develops a simple two period model of offending in which criminal convictions act as an adverse signal in labour markets ordinary and multinomial logistic regression modelling is used to test the predictions of the theoritical model and explore the link between unemployment and convictions the empirical results which are based on longitudinal data from the national child development study ncds in the uk strongly support the view that ceteris paribus individuals with previous convictions are at higher risk of being unemployed

the economics of career concerns part ii application to missions and accountability of government agencies the paper uses a simple multitask career concern model in order to analyse the incentives of government agencies officials incentives are impaired by the agency pursuing multiple missions a lack of focus is even more problematic in the case of fuzzy missions that is when outsiders are uncertain about the exact nature of the missions actually pursued by the agency consequently agencies pursuing multiple missions receive less autonomy the paper further shows that professionalization creates a sense of mission for the agency and that the specialization of officials raises their incentives last the paper compares its predictions with the stylized facts on government bureaucracies 1999 the review of economic studies limited

the use of criminal record in employment decisions the rights of ex offenders employers and the public the evidence suggests that employers discriminate against ex offenders in the labour market the problem is potentially serious as it involves a substantial proportion of the population especially the male population since research has shown that most people with prior convictions stop offending by their late 20s or early 30s the validity of selection based on criminal record remains questionable this paper examines the need for legal protection of ex offenders by limiting employers access to and use of information on criminal background the rights and interests of the various parties involved employers ex offenders and the general public are discussed approaches to the legal protection of ex offenders in australia are reviewed and legislative changes proposed

reducing incremental costs associated with the delegation of incentive contracting decisions an analysis of planning and control decisions in a manufacturing setting in the presence of moral hazard abstract we compare and contrast two specific regimes involving the centralization and delegation of the incentive contracting decision in manufacturing organizations in the centralization regime a single individual simultaneously makes the allocation of demand to production facilities and determines the incentive compensation scheme for the managers at the facilities under the delegation regime the demand allocation is decided upon initially by a superior and the incentive contracting decision is subsequently made by a subordinate who is neither of the two managers in charge of the production facilities using the principal agent paradigm which assumes that the managerial efforts are unobservable we demonstrate that the centralization regime performs no worse than the delegation regime for situations where strategic or other requirements necessitate firms to opt for the delegation of the incentive contracting decision we propose a heuristic that significantly increases the likelihood of mimicking the allocation and contracting decisions made under the centralized regime

crime inequality and unemployment in england and wales a model of crime is developed based on principles from the existing literature with some original insight the implications of the model are that income inequality and unemployment are important explanatory variables for crimes motivated by economic gain but do not offer much explanatory power for other types of crime panel data of uk regions over the years from 2002 to 2007 are then used to test these predictions the empirical results strongly support the hypothesis that crime is an economic phenomenon

consumer s surplus without apology the purpose of this paper is to settle the controversy surrounding consumer s surplus and by so doing to validate its use as a tool of welfare economics i will show that observed consumer s surplus can be rigorously utilized to estimate the unobservable compensating and equivalent variations the correct theoretical measures of the welfare impact of changes in prices and income on an individual i derive precise upper and lower bounds on the percentage errors of approximating the compensating and equivalent variations with consumer s surplus these bounds can be explicitly calculated from observable demand data and it is clear that in most applications the error of approximation will be very small in fact the error will often be overshadowed by the errors involved in estimating the demand curve the results in no way depend upon arguments about the constancy of the marginal utility of income consequently this paper supplies specific empirical criteria which can replace the apologetic caveats frequently employed by those who presently apply consumer s surplus moreover the results imply that consumer s surplus is usually a very good approximation to the appropriate welfare measures to preview below i establish the validity of these rules of thumb for a

correlation and relative performance evaluation this paper reexamines the issue of relative versus joint incentive schemes in a multi agent moral hazard framework the model allows a full analysis of the information and dependence structure an important result is that the widespread notion that greater correlation in outcomes calls for more competition is not robust first when the dependence structure is effort sensitive the optimal incentive scheme in general mixes elements of relative evaluation and joint evaluation second under limited liability higher equilibrium correlation tends to make joint performance evaluation more desirable examples are provided regarding incentives in firms finance and innovation

cooperation and competition in organizations a dynamic perspective abstract in static principal agent relationships cooperation and competition among agents both yield higher welfare than independent compensation both modes of job design improve the tradeoff between risk and explicit incentives in dynamic settings welfare is also affected by implicit incentives in particular the ratchet effect i characterize the effects of job design decisions on implicit incentives showing that they differ in nature from explicit incentive effects and may be the dominant ones even if a decision about job design improves the static risk incentive tradeoff it may worsen the ratchet effect by so much that welfare falls

decentralization and collusion abstract we consider a model where agents work in sequence on a project share information not available to the principal and can collude due to limited liability the coase theorem does not apply the distribution of surplus among the agents is therefore an important control variable for the principal which gives us a theory of how to delegate in an organization subject to moral hazard the optimal distribution of surplus can always be achieved by delegating in the right way decentralization without using message games journal of economic literature classification numbers d23 d82 l14 l22

contracts under wage compression a case of beneficial collusion this paper considers a principal agent model with adverse selection and limited wage discrimination under wage compression an agent may have an incentive to free ride on other agents by manipulating his private information when collusion among the agents is not possible the principal distorts the output schedule to reduce information rent associated with the free riding opportunity under collusion however the principal can reduce the information rent by inducing side contracts among the agents thus partly removing the distortion in the output schedule we show that side contracts among the agents take place in equilibrium and that the prospect of collusion is beneficial

the benefits of aggregate performance metrics in the presence of career concerns this paper considers the desirability of aggregate performance measures in light of the fact that many individuals performance incentives are driven by a desire to shape external perceptions and thus future pay in contrast to the case of explicit incentive contracts we find that when individuals actions are driven by career incentives an aggregate measure e g group or team output can sometimes alleviate moral hazard concerns and improve efficiency aggregation intermingles performance measures that may be differentially affected by skill and effort of many agents when such entanglement increases the prospect that the external market will attribute an employee s effort driven contribution to transferable skills the employee exerts higher effort as a means of posturing to the market the incentive benefit of aggregation is weighed against the incentive cost because of information loss information loss from aggregation can reduce the market s reliance on the measure and thus diminish agents desire to undertake effort to influence the measure this paper was accepted by stefan reichelstein accounting

collusion and biased tournaments abstract tournaments are vulnerable to collusion this paper finds that biased tournaments can be more effective at preventing collusion than unbiased ones when agents can collude to exert low effort introducing some bias into tournaments generates opposite effects on favored and disfavored agents respective incentives to exert high effort and provides strong incentives for the favored agent to deviate from collusion introducing an adequate degree of bias reduces the principal s incentive cost for preventing collusion however granting excessive bias instead increases the incentive cost we show that the optimal level of bias can be endogenously determined

aggregation and linearity in the provision of intertemporal incentives we consider the problem of providing incentives over time for an agent with constant absolute risk aversion the optimal compensation scheme is found to be a linear function of a vector of n accounts which count the number of times that each of the n kinds of observable events occurs the number n is independent of the number of time periods so the accounts may entail substantial aggregation in a continuous time version of the problem the agent controls the drift rate of a vector of accounts that is subject to frequent small random fluctuations the solution is as if the problem were the static one in which the agent controls only the mean of a multivariate normal distribution and the principal is constrained to use a linear compensation rule if the principal can observe only coarser linear aggregates such as revenues costs or profits the optimal compensation scheme is then a linear function of those aggregates the combination of exponential utility normal distributions and linear compensation schemes makes computations and comparative statics easy to do as we illustrate we interpret our linearity results as deriving in part from the richness of the agent s strategy space which makes it possible for the agent to undermine and exploit complicated nonlinear functions of the accounting aggregates

contracting with self esteem concerns it is widely accepted in social psychology that the need to maintain and enhance self esteem is a fundamental human motive we incorporate this factor into an otherwise ordinary principal agent framework and examine its impact on the optimal incentive scheme and the agent s behavior especially focusing on the form of intrapersonal strategy known as self handicapping incorporating self esteem concerns into a contracting situation yields an implication that runs counter to conventional wisdom that is the standard tradeoff between risk and incentives may break down i e more uncertainty reduces agency cost and hence results in stronger incentives in the presence of self esteem concerns this is because uncertainty mitigates the need for self handicapping this result provides a possible reason for why we do not empirically observe this tradeoff in a robust manner we present an intuitive condition for this anomaly to arise and provide a set of testable implications the present framework also reveals why and how team production can be made more profitable by providing an explanation for the increasing popularity of team production finally this simple logic is applied to identify additional implications for the hidden costs of external enforcers such as evaluation and monitoring which are discussed extensively in social psychology

national vs european incentive policies bargaining information and coordination abstract we build a hierarchical model of contractual relationships under moral hazard to address issues about subsidiarity i e optimal de centralization of incentive industrial policies at the national level or at the european community level incentive policy is viewed as an incentive contract for producers who take unobservable decisions that have spillover effects across member states a community agency designs contracts for producers and contractual compensatory transfers between states on the basis of its observations then national regulators and their home producers negotiate according to a generalized nash bargaining a national contract that complements the community contracts given that national regulators will have access to more observations on the producers activities in this setting we show that full centralization is never optimal we give sufficient conditions for complete decentralization to be optimal and when both policies are present we characterize how they interact to provide incentives to producers

a note on the optimal structure of production abstract we analyze the advantages of centralization and decentralization in industries in which production takes place in several stages and the costs are privately observed by the agents in charge of production we demonstrate that informational diseconomies arise when uncorrelated information is concentrated in the hands of a single agent these diseconomies arise when the stages of production are different activities with different cost supports journal of economic literature classification numbers d82 l22 l51

coalitions incentives and risk sharing abstract this paper analyzes the effects of coalitional behavior in principal multiagent relationships with moral hazard and identifies cases where the principal prefers agents to form a coalition via side contracting it is shown that the principal can implement given efforts via non individualistic incentive contracts at a lower cost when the agents can monitor each other s efforts perfectly and hence coordinate their effort choice than when the agents behave independently permitting the principal to utilize more complex communication mechanisms does not alter the result for there is no coalition proof revelation mechanism improving the principal s welfare journal of economic literature classification number d82

career concerns monetary incentives and job design we study optimal incentive contracts when commitments are limited and agents have multiple tasks and career concerns the agent s career concerns are determined by the outside market we show that the principal might want to give the strongest explicit incentives to agents far from retirement to account for the fact that career concerns might induce behavior in conflict with the principal s preferences furthermore we show that maximized welfare might be decreasing in the strength of career concerns that optimal incentives can be positively correlated with various measures of uncertainty and that career incentives have strong implications for optimal job design

trade and employment efects in the united states of multilateral tariff reductions this paper summarizes certain aspects of my research into the trade and employment effects in the united states of a significant multilateral reduction in tradedistorting measures by the world s major trading nations the study differs from earlier investigations into this question such as those by giorgio basevi 1968 stephen magee 1973 robert stern 1964 and beatrice vaccara and walter salant 1960 in that the industry breakdown is much more detailed and the consequences of a multilateral tariff reduction on both u s export and import competing industries is taken into account by estimating not only the net trade and employment effects of a significant tariff reduction in over 350 industries but also in the 50 states and on some 14 occupational groups it is hoped that the results will be useful for those who are now embarked on the so called tokyo round of trade negotiations within the framework of the general agreement of tariffs and trade gatt another novel feature of the study is the estimation of the net employment effects of multilateral tariff cuts under the assumption of flexible exchange rates