An Efficiency Rationale for Bundling of Public Goods

This paper studies the role of bundling in the efficient provision of excludable public goods. We show that bundling in the provision of unrelated public goods can enhance social welfare. With a large number of goods and agents, first best can be approximated with pure bundling. For a parametric class of problems with binary valuations, we characterize the optimal mechanism, and show that bundling alleviates the free riding problem in large economies and decreases the extent of use exclusions. Both results are related to the idea that bundling makes it possible to reduce the incidence of exclusions because the variance in the relevant valuations decreases.Public goods provision, Bundling, Exclusion

To Bundle or Not to Bundle

Commodity bundling is studied in an environment where the dispersion of valuations unambiguously decreases when two or more goods are sold as a bundle only. Bundling is more likely to dominate separately selling the goods if marginal costs are low relative to the average valuation, or if the distribution of valuations is very peaked around the mean.Monopolistic pricing, Bundling, Peakedness

An Alternative Test of Racial Prejudice in Motor Vehicle Searches: Theory and Evidence

We exploit a simple but realistic model of trooper behavior to design empirical tests that address the following two questions. Are police monolithic in their search behavior? Is racial profiling in motor vehicle searches motivated by troopers' desire for effective policing (statistical discrimination) or by their racial prejudice (racism)? Our tests require data sets with race information about both the motorists and troopers. When applied to vehicle stop and search data from Florida, our tests can soundly reject the null hypothesis that troopers of different races are monolithic in their search behavior, but fail to reject the null hypothesis that none of the racial groups of troopers are racially prejudiced.Statistical Discrimination, Racial Prejudice, Racial Profiling

Estimating Dynamic Discrete Choice Models with Hyperbolic Discounting, with an Application to Mammography Decisions

We extend the semi-parametric estimation method for dynamic discrete choice models using Hotz and Miller’s (1993) conditional choice probability (CCP) approach to the setting where individuals may have hyperbolic discounting time preferences and may be naive about their time inconsistency. We illustrate the proposed estimation method with an empirical application of adult women’s decisions to undertake mammography to evaluate the importance of present bias and naivety in the under-utilization of this preventive health care. Our results show evidence for both present bias and naivety.Time Inconsistent Preferences, Intrapersonal Games, Dynamic Discrete Choices, Preventive Care

Why Do Life Insurance Policyholders Lapse? The Roles of Income, Health and Bequest Motive Shocks

Previous research has shown that the reasons for lapsation have important implications regarding the effects of the emerging life settlement market on consumer welfare. We present and empirically implement a dynamic discrete choice model of life insurance decisions to assess the importance of various factors in explaining life insurance lapsations. In order to explain some key features in the data, our model incorporates serially correlated unobservable state variables which we deal with using posterior distributions of the unobservables simulated from Sequential Monte Carlo (SMC) method. We estimate the model using the life insurance holding information from the Health and Retirement Study (HRS) data. Counterfactual simulations using the estimates of our model suggest that a large fraction of life insurance lapsations are driven by i.i.d choice specific shocks, particularly when policyholders are relatively young. But as the remaining policyholders get older, the role of such i.i.d. shocks gets smaller, and more of their lapsations are driven either by income, health or bequest motive shocks. Income and health shocks are relatively more important than bequest motive shocks in explaining lapsations when policyholders are young, but as they age, the bequest motive shocks play a more important role. We also suggest the implications of these findings regarding the effects of the emerging life settlement market on consumer welfare.Life insurance lapsations, Sequential Monte Carlo Method

Government-Mandated Discriminatory Policies

This paper provides a simple explanation for why some minority groups are economically successful, despite being subject to government-mandated discriminatory policies. We study an economy with private and public sectors in which workers invest in imperfectly observable skills that are important to the private sector but not to the public sector. A law allows native majority workers to be employed in the public sector with positive probability while excluding the minority from it. We show that even when the public sector offers the highest wage rate, it is still possible that the discriminated group is, on average, economically more successful. The reason is that the preferential policy lowers the majority's incentive to invest in imperfectly observable skills by exacerbating the informational free riding problem in the private sector labor marketDiscrimination; Informational Free Riding; Income Distribution

Optimal Provision of Multiple Excludable Public Goods

This paper studies the optimal provision mechanism for multiple excludable public goods when agents' valuations are private information. For a parametric class of problems with binary valuations, we characterize the optimal mechanism, and show that it involves bundling. Bundling alleviates the free riding problem in large economies in two ways: first, it can increase the asymptotic provision probability of socially efficient public goods from zero to one; second, it decreases the extent of use exclusions.Public Goods Provision, Bundling, Exclusion

To Bundle or Not to Bundle

Comparing monopoly bundling with separate sales is relatively straightforward in an environment with a large number of goods. In this paper we show that results that are similar to the asymptotic results can be obtained in the more realistic case with a given finite number of goods provided that the distributions of valuations are symmetric and log-concave.Monopoly Pricing, Bundling, Peakedness

Dynamic Inefficiencies in Employment-Based Health Insurance System Theory and Evidence

We investigate how the employment-based health insurance system in the U.S. affects individuals' life-cycle health-care decisions. We take the viewpoint that health is a form of human capital that affects workers' productivities on the job, and derive implications of employees' turnover on the incentives to undertake health investment. Our model suggests that employee turnovers lead to dynamic inefficiencies in health investment, and particularly, it suggests that employment-based health insurance system in the U.S. might lead to an inefficient low level of individual health during individuals' working ages. Moreover, we show that under-investment in health is positively related to the turnover rate of the workers' industry and increases medical expenditure in retirement. We provide empirical evidence for the predictions of the model using two data sets, the Medical Expenditure Panel Survey (MEPS) and the Health and Retirement Study (HRS). In MEPS, we find that employers in industries with high turnover rates are much less likely to offer health insurance to their workers. When employers offer health insurance, the contracts have higher deductibles and employers' contribution to the insurance premium is lower in high turnover industries. Moreover, workers in high turnover industries have lower medical expenditure and undertake less preventive care. In HRS, instead we find that individuals who were employed in high turnover industries have higher medical expenditure when retired. The magnitude of our estimates suggests significant degree of intertemporal inefficiencies in health investment in the U.S. as a result of the employment-based health insurance system. We also evaluate and cast doubt on alternative explanations.

Time-inconsistency and Welfare Program Participation: Evidence from the NLSY

We empirically implement a dynamic structural model of labor supply and welfare program participation for agents with potentially time-inconsistent preferences. Using panel data on the choices of single women with children from the NLSY 1979, we provide estimates of the degree of time-inconsistency, and of its influence on the welfare take-up decision. With these estimates, we conduct counterfactual experiments to quantify the utility loss stemming from the inability to commit to future decisions, and the potential utility gains from commitment mechanisms such as welfare time limits and work requirements.Time inconsistent preferences, Welfare reform, Labor supply