We present a simple graphical framework to illustrate the potential welfare gains from a "top-up" health insurance policy requiring patients to pay the incremental price for more expensive treatment options. We apply this framework to breast cancer treatments, where lumpectomy with radiation...

Humans run on a fuel called food. Yet economists and other social scientists rarely study what people eat. We provide simple evidence consistent with the existence of a link between the consumption of fruit and vegetables and high well-being. In cross-sectional data, happiness and mental health...

Much of the extensive empirical literature on insurance markets has focused on whether adverse selection can be detected. Once detected, however, there has been little attempt to quantify its importance. We start by showing theoretically that the efficiency cost of adverse selection cannot be...

This paper shows how models of insurance markets with asymmetric information can be calibrated and solved to yield quantitative estimates of the consequences of government regulation. We estimate the impact of restricting gender-based pricing in the United Kingdom retirement annuity market, a...

This paper tests for asymmetric information in the U.K. annuity market of the 1990s by trying to identify 'unused observables,' attributes of individual insurance buyers that are correlated both with subsequent claims experience and with insurance demand but that insurance companies did not use...

This paper presents new evidence on the importance of adverse selection in insurance markets. We use a unique data set, consisting of all annuity policies sold by a large U.K. insurance company since the early 1980s, to analyze mortality differences across groups of individuals who purchased...

The standard of living in the industrialized nations has been steadily increasing over the last few decades. Yet some observers wonder whether we are really getting any happier. This paper addresses that question by examining well-being data on 100,000 randomly sampled Americans and Britons from...

This paper presents new evidence on the importance of adverse selection in individual annuity markets. It focuses on the individual annuity market in the United Kingdom, which provides an excellent empirical setting for studying selection effects. In addition to a voluntary annuity market, the...

Following Phillip's original work on the UK, applied research on unemployment and wages has been dominated by the analysis of highly aggregated time-series data sets. However, it has proved difficult with such methods to uncover statistically reliable models. This paper adopts a different...

The paper studies the factors which shape entrepreneurship among young adults. It finds, using data on a British birth cohort, that the probability of self-employment depends sensitively upon whether the individual ever received a gift or inheritance. Those who were given or inherited £5,000,...