Employer matching of employee 401(k) contributions can provide a powerful incentive to save for retirement and is a key component in pension-plan design in the United States. Using detailed administrative contribution, earnings, and pension-plan data from the Health and Retirement Study, this...

This paper investigates whether attacks against Israeli targets help Palestinian factions gain public support. We link individual level survey data to the full list of Israeli fatalities during the period of the Second Intifada (2000-2006), and estimate a flexible discrete choice model for...

We analyze the link between economic conditions and the quality of suicide terrorism. While the existing empirical literature shows that poverty and economic conditions are not correlated with the quantity of terror, theory predicts that poverty and poor economic conditions may affect the...

The literature on conflict and terrorism has paid little attention to the economic costs of terrorism for the perpetrators. This paper aims to fill that gap by examining the economic costs of committing suicide terror attacks. Using data covering the universe of Palestinian suicide terrorists...

his paper examines how violence in the Second Intifada influences Palestinian public opinion. Using micro data from a series of opinion polls linked to data on fatalities, we find that Israeli violence against Palestinians leads them to support more radical factions and more radical attitudes...

This paper studies the relation between human capital of suicide bombers and outcomes of their suicide attacks. We argue that human capital is an important factor in the production of terrorism, and that if terrorists behave rationally we should observe that more able suicide bombers are...

The paper investigates whether there is a causal link between poverty or low education and participation in politically motivated violence and terrorist activities. After presenting a discussion of theoretical issues, we review evidence on the determinants of hate crimes. This literature finds...

We estimate the impact of piped water and sewers on property values in mid-19th century Chicago. The cost of sewer construction depends sensitively on imperceptible variation in grade, and such variations in grade delay water and sewer service to part of the city. This delay provides...

The Clean Water Act (CWA) significantly improved surface water quality, but at a cost exceeding the estimated benefits. We quantify the effect of the CWA on a direct measure of health and incorporate health benefits into a cost-benefit analysis. Using a difference-in-differences framework, we...

Agricultural producers make investment decisions based on beliefs about future returns. This article investigates how changes in beliefs about input availability affects the adoption of conservation practices. We develop a theoretical model to examine how a producer's beliefs about water...