In an attempt to alleviate the shortfall in organs and bone marrow available for transplants, many U.S. states passed legislation providing leave to organ and bone marrow donors and/or tax benefits for live and deceased organ and bone marrow donations and to employers of donors. We exploit...

This paper analyzes the optimal treatment of tax expenditures. It develops an optimal tax model where individuals derive utility from spending on a contribution' good such as charitable giving. The contribution good has also a public good effect on all individuals in the economy. The government...

Donations to charity are widely encouraged by policymakers through targeted tax incentives such as tax credits for contributions only to qualifying causes. We use a framed field experiment to test how the largest such program, Arizona’s state income tax credit for donations to qualifying...

This paper examines how the tax simulation method can be extended to incorporate nonlinear budget constraints and nonstandard economic behavior. We simulate the effect of extending the charitable deduction to nonitemizers and study the effect of alternative "floors". The specific simulations...

The economic argument for subsidizing charitable giving relies on the positive externalities of charitable activities, particularly from the religious institutions that are the largest recipients of giving. But the net external effects of subsidies to religious giving will also depend on a...

The very poor in developing countries often make intertemporal choices that seem at odds with their individual self-interest. There are many possible reasons why. We investigate several of these reasons with a lab-in-the-field experiment in rural Malawi involving large stakes. We make two...

We investigate the welfare consequences of the stark increase in wage and earnings inequality in the US over the last 30 years. Our data stems from the Consumer Expenditure Survey, which is the only US data set that contains information on wages, hours worked, earnings and consumption for the...

We examine the factors that determine the differences in ex ante returns on equities in eleven Pacific Basin countries. Our concern is whether real return differentials are primarily caused by nominal return differentials or expected changes in real exchange rates. We find that nominal return...