Unconditional quantile treatment effects are difficult to estimate in the presence of fixed effects. Panel data are frequently used because fixed effects or differences are necessary to identify the parameters of interest. The inclusion of fixed effects or differencing of data, however,...

This paper introduces an unconditional quantile regression (UQR) estimator that can be used for exogenous or endogenous treatment variables. Traditional quantile estimators provide conditional treatment effects. Typically, we are interested in unconditional quantiles, characterizing the...

This paper uses the abrupt changes in health insurance coverage at age 65 arising from the Medicare program eligibility rules to evaluate the impact of insurance status on treatment intensity and health outcomes. Drawing from several million hospital discharge records for the State of...

About one-third of elderly Americans age 65 and older supplements their Medicare health insurance in a private insurance market known as the ÒMedigapÓ market. Prices for Medigap policies vary widely, despite the fact that regulations enacted in 1992 standardized all Medigap policies, thereby...

This research addresses the effect of prescription drug insurance coverage on the use and expenditures for prescription medications in the elderly.

This paper presents a theory of the demand for health, health investment and longevity, building on the human capital framework for health and addressing limitations of existing models. It predicts a negative correlation between health investment and health, that the health of wealthy and...

Self-reported work disability is analyzed in the US and The Netherlands. The raw data show that Dutch respondents much more often report that they have a work limiting health problem than respondents in the US. The difference remains when controlling for demographic characteristics and observed...

The authors use the increases in health insurance coverage at age 65 generated by the rules of the Medicare program to evaluate the effects of health insurance coverage on health related behaviors and outcomes. The rise in overall coverage at age 65 is accompanied by a narrowing of disparities...

Understanding of the substantial disparity in health between low and high socioeconomic status (SES) groups is hampered by the lack of a sufficiently comprehensive theoretical framework to interpret empirical facts and to predict yet untested relations. The authors present a life-cycle model...

To analyze the effect of health on work, many studies use a simple self-assessed health measure based upon a question such as "do you have an impairment or health problem limiting the kind or amount of work you can do?" A possible drawback of such a measure is the possibility that different...