This paper argues that drugs are expensive not because of a lack of competition among research-based pharmaceutical companies, but because of a lack of competition in the drug approval process. Lack of competition in the drug approval process has led to exceedingly high drug development costs....

Working as a volunteer is a widespread phenomenon that has both individual and societal benefits. In this paper, we identify the wage returns to working for free by exploiting exogenous variation in rainfall across local area districts in England, Scotland and Wales. Instrumental variables...

In this paper we examine the underlying sources of economic concentration in Israel, which is unusually high for a developed and innovative economy. After a brief review of Israel's economic history since the start of the British Mandate, we describe the level of economic concentration,...

This paper estimates the economic and non-economic returns to volunteering for prime-aged women. A woman's decision to engage in unpaid work, and to marry and have children, is formulated as a forward-looking discrete choice dynamic programming problem. Simulated maximum likelihood estimates of...

Small business activity and female entrepreneurship have become increasingly important features of the UK economy since the start of the Great Recession. In this paper, we re-examine the impact of liquidity constraints on new business formation in an instrumental variables framework, using a...

This paper develops a new simulation estimation algorithm that is particularly useful for estimating dynamic panel data models with unobserved endogenous state variables. The new approach can deal with the commonly encountered and widely discussed ``initial conditions problem,'' as well as the...

Re-licensing requirements for professionals that move across borders are widespread. In this paper, we measure the effects of occupational licensing by exploiting an immigrant physician re-training assignment rule. Instrumental variables and quantile treatment effects estimates indicate large...

This article develops a simulation estimation algorithm that is particularly useful for estimating dynamic panel data models with unobserved endogenous state variables. Repeated sampling experiments on dynamic probit models with serially correlated errors indicate the estimator has good small...

This paper formulates and estimates a dynamic programming model of optimal educational financing decisions. The main purpose of the paper is to measure the effect of short-term parental cash transfers, received during school, on educational borrowing and in-school work decisions, and on...