Occupational self-selection in a labor market with moral hazard

This paper studies the determinants and implications of self-selection when firms imperfectly observe worker effort. The effects of the resulting moral hazard problem on the self-selection mechanism are analyzed in a model in which workers simultaneously choose an employment sector and an effort level. The implications of the model reveal that in the presence of moral hazard, workers’ effort decisions become an additional mechanism determining the pattern of selection into sectors. Workers’ sector-specific endowments impact sectoral allocation through their effect on workers’ comparative advantage as well as their effect on workers’ shirking propensity. The model is then used in an empirical application that analyzes workers’ self-selection into white collar and blue collar occupations. The estimation results, based on data from the National Longitudinal Survey of Youth, suggest that workers’ occupational self-selection leads to higher wages and lower dismissal rates in both occupations, compared to an economy in which workers are randomly assigned to each occupation. The difference in dismissal rates between the two occupations is driven by the higher expected productivity in the white collar sector. The positive effects of occupational sorting diminish as the labor market becomes increasingly characterized by moral hazard. Results also suggest that human capital investments in skills that are most relevant to blue collar jobs may generate higher wages and lower dismissal rates in both white collar and blue collar occupations.     

Industry equilibrium with outside financing and moral hazard: Implications for market integration

In this paper, we study industry equilibrium under the assumptions that (1) firms need outside financing and (2) they have a moral hazard problem in taking potentially excessive risks. We characterize an industry equilibrium with credit rationing, where firms choose not to take risks, and compare this to the industry equilibrium in the absence of credit rationing. In both cases, we show that competition increases and prices decline as markets integrate. However, in markets with credit rationing there is typically more exit, a smaller decline in prices and, most strikingly, the market value of the industry increases rather than decreases.     

Labor market cycles, unemployment insurance eligibility, and moral hazard

If entitlement to UI benefits must be earned with employment, generous UI is an additional benefit to working, so, by itself, it promotes job creation. If individuals are risk neutral, then there is a UI contribution scheme that eliminates any effect of UI on employment decisions. As with Ricardian Equivalence, this result should be useful to pinpoint the effects of UI to violations of its premises. Our baseline simulation shows that if the neutral contribution scheme derived in this paper were to be implemented, the average unemployment rate in the United States would fall from 5.7 to 4.7 percent. Also, the results show that with endogenous UI eligibility, one can simultaneously generate realistic productivity driven cycles and realistic responses of unemployment to changes in UI benefits.     

Lender deception as a response to moral hazard

The paper considers a principal–agent relationship between a borrower and lender based on a model from Bowles (Microeconomics: behavior, institutions, & evolution. Princeton University Press, Princeton, 2003). It expands the model by incorporating borrower collateral as an exogenous variable to partly assuage lender concerns about excessive risk, and a theory of lender deception is then developed. Deception is posited as a costly activity that effectively makes fraud undetectable and extracts the borrower’s economic rent arising from moral hazard despite the presence of third-party enforcement and borrower collateral. We identify under what conditions a lender may have sufficient incentives for employing deception and to what extent they would employ it. The likelihood of, and outcomes from, deception are compared between monopoly lenders those in competitive markets. The model suggests that competitive lenders have more incentive to deceive than a monopoly lender facing the same borrower.     

Conflicting tasks and moral hazard: Theory and experimental evidence

We study a multi-task principal-agent problem in which tasks can be in direct conflict with each other. In theory, it is difficult to induce a single agent to exert efforts in two conflicting tasks, because effort in one task decreases the success probability of the other task. We have conducted an experiment in which we find strong support for the relevance of this incentive problem. In the presence of conflict, subjects choose two efforts significantly less often when both tasks are assigned to a single agent than when there are two agents each in charge of one task.     

Minimum payments and induced effort in moral hazard problems

Consider a moral hazard problem in which there is a constraint to pay the agent no less than some amount m. This paper studies the effect of changes in m on the effort that the principal chooses to induce from the agent. We present sufficient conditions on the informativeness of the signal observed by the principal and on the agentʼs utility under which when m increases, induced effort (and hence productivity) falls. We also study how the cost minimizing contract for any given effort level varies in m. We present an efficient algorithm for numerically calculating optimal contracts for given parameters and show that induced effort falls when m is increased in many cases even when our sufficient conditions fail.     

Screening risk-averse agents under moral hazard: single-crossing and the CARA case

Principal-agent models of moral hazard have been developed under the assumption that the principal knows the agent's risk-aversion. This paper extends the moral hazard model to the case when the agent's risk-aversion is his private information, so that the model also exhibits adverse selection. We characterize the optimal menu of contracts; while its detailed properties depend on the setting, we show that some of them must hold for all environments. In particular, the power of incentives always decreases with risk-aversion. We also characterize the relationship between the outside option and the optimal contracts. We then apply our results to testing for asymmetric information in insurance markets.The authors thank P.A. Chiappori, D. de Mezza, R. Myerson, C. Prendergast, the late S. Rosen, D. Webb and an anonymous referee for helpful discussions or comments, as well as seminar participants in Berkeley, Chicago, Montré al, Northwestern, Rome, Stanford and Wisconsin. Bruno Jullien gratefully acknowledges financial support from the Fédération Francaise des Sociétés d'Assurance; Bernard Salanié thanks the University of Chicago for its hospitality.     

Reverse moral hazard of liability insurers: evidence from medical malpractice claims

This study investigates putative differences in the legal defense of medical malpractice claims between liability carriers with distinct ownership forms: doctor-controlled and commercial-stock. The scope of a carrier's legal defense is determined by claim characteristics, such as injury severity and liability, and possibly the doctor's private costs from settling or losing a claim. When a carrier does not internalize the doctor's private costs from losing or settling a claim, then a conflict of interest arises as the carrier provides a lower level of legal defense than preferred by the doctor (i.e., reverse moral hazard). The perception is that doctor-sponsored carriers mitigate such conflicts of interest. If this is the case, we should expect to see differences in the amount spent by the carrier in defense of the doctor and the propensity to settle claims. To test these expectations, we use medical malpractice claims filed in Florida between 1985 and 1990. We indeed find differences in legal defense in terms of amount spent on legal defense and settlement rate between carriers with different ownership. The doctor-sponsored carrier we investigated was less likely to settle out-of-court, and did spend more on a doctor's legal defense than stock carriers.     

Intrahousehold moral hazard frictions and household poverty traps in rural India

We empirically study the role of assets held by women in the creation of household wealth using data from rural India. We design a streamlined model of intrahousehold project funding where moral hazard frictions between spouses and women's asset control are the main ingredients. As predicted by the model, the data show that household asset accumulation depends on women's asset control in a non-monotonic way. Results indicate no presence of multiple equilibrium poverty traps, but do show that exogenous negative shocks will trigger assets aggregation within households where both spouses are present. This resilience mechanism is, however, not found in female headed household as these households have a monotonic relationship between women's wealth control and asset creation. We thus argue that policies to support women's empowerment need to distinguish women based on their individual wealth levels and headship status to enhance household well-being in remote Indian communities.     

Liquidity provision vs. deposit insurance: preventing bank panics without moral hazard

Equilibrium bidding strategies under most multi-unit auction rules cannot be obtained as closed form expressions. Research in multi-unit auctions has, therefore, depended on implicit characterization of equilibrium strategies using the first-order conditions of the bidders’ expected payoff maximization problem. In this paper we consider the pay-as-bid auction with diminishing marginal values for two units and show that any symmetric equilibrium in continuous strategies has the necessary properties to allow such a characterization. Moreover, any increasing solution to the system of differential equations that is used to characterize the equilibrium strategies describes an equilibrium strategy.Generous suggestions and comments from Richard Engelbrecht-Wiggans, Charles M. Kahn, and an anonymous referee are gratefully acknowledged.     

Public regulation of private accident risk: The moral hazard of technological improvements

This paper discusses individual agents' incentives to take precautions to prevent accidents when the prevention technology facing the agents is changed due to regulation. It is shown that private prevention activities vary greatly with different attitudes towards risk. This is a great potential problem for the implementation of several types of legal regulation of individuals' precautionary level, like negligence rules. In this case, regulators need to observe the true preferences of the regulated agents to implement the optimal program. One novel feature of the present analysis is that only simple properties of the prevention technology need to be known to identify potential incentive problems, regardless of the underlying preferences.     

Deposit insurance and moral hazard problem: the case of Turkish banking system

We investigate the effect of full deposit insurance introduced in 1994 on the financial performance of Turkish commercial banks. We construct a model, under reasonable assumptions, with deposit insurance where banks undertake excessive risk –?moral hazard risk. Empirical investigation using experimental design approach supports our moral hazard hypothesis. Our findings indicate that banks subject to the moral hazard behaviour show significant increases in foreign exchange position risk and deterioration in capital adequacy relative to their benchmark after introduction of full deposit insurance system. We relate this excessive risk-taking to the moral hazard behaviour by commercial banks. The research results indicate that complete deposit insurance system distorts the incentive structure of commercial banks and thus, prevents proper functioning of market discipline mechanism and leads to the taking excessive risk-taking.     

Long‐term care and intrafamily moral hazard: Optimal public policy

The paper studies optimal public long‐term care (LTC) policy in the context of intrafamily moral hazard suggested by Pauly. The model considers a representative family consisting of an adult child and her elderly parent who might become dependent, in which case he places a special value on the LTC provided to him by his child. Since the child's caregiving is decreasing in the amount of insurance coverage, the parent prefers to underinsure, which is socially suboptimal. The child's choice of caregiving is also inefficient since she does not internalize its positive effect on the parent. The paper tackles these inefficiencies and shows that intrafamily moral hazard is a sufficient justification for public intervention targeted at insurance. If not necessarily for the introduction of mandatory public insurance, then at least for the taxation or subsidization of private insurance premiums.     

The wealth effects of premium subsidies on moral hazard in insurance markets

Insurance premium subsidies are present in many insurance markets. The Swiss government, for example, paid out CHF 4.26 billion or 0.72% of the Swiss GDP for health insurance premium subsidies in 2011. Analyses of premium subsidies have often highlighted that the increased insurance demand due to premium subsidies increases the effects of moral hazard in the market. Other consequences of premium subsidies, however, have mostly been neglected by the literature. We show in our theoretical model that the wealth effects of premium subsidies decrease the sensitivity of the insured towards the monetary consequences of losses. This leads to less prevention efforts by the insured and thus increases moral hazard in the market. The effect is preserved if the subsidy is financed through proportional taxation. Using two alternative models, we show that providing state-dependent subsidies can either increase or reverse this effect, depending on which state subsidies are paid. We argue that whether demand effects or wealth effects of premium subsidies will dominate the insured׳s behavior depends on the market structure.     

Efficient allocations with moral hazard and hidden borrowing and lending: A recursive formulation

We propose a tractable recursive framework to study the optimal allocation of consumption and effort in a dynamic setting with moral hazard where agents have secret access to the credit market or to storage. The recursive structure is based on a generalized first-order approach, whose validity must be verified ex post. Thanks to the recursive formulation of the optimal contract, the verification procedure turns out to be numerically parsimonious as it can be performed using standard dynamic programming techniques with only one endogenous state variable: The agent's level of assets. We study the performance of our ex post verification test in practice by solving numerically three representative infinite horizon examples.     

When lack of accountability allows observing unobservables: moral hazard in sub-national government credit markets in Mexico

This article estimates the amount of moral hazard effect in sub-national credit markets. I employ the case of Mexico because of the country’s lack of political accountability; a fact that I argue allows for observation of this informational problem. In particular, out of every dollar borrowed, sub-national governments spend 45 cents in activities unrelated to the purpose of credit.