We empirically analyze the heterogeneous welfare effects of unemployment insurance and social assistance. We estimate a structural life-cycle model of singles' and married couples' labor supply and savings decisions. The model includes heterogeneity by age, education, wealth, sex and household...

Conventional in-work benefits or tax credits are now well established as a policy instrument for increasing labour supply and tackling poverty. A different sort of in-work credit is one where the payments are time-limited, conditional on previous receipt of welfare, and, perhaps, not...

This paper provides an empirical account of the dynamic return to work, and how this is affected by taxes and benefits. In doing so we bring the insights from the literature on dynamic labour supply to the issue of estimating the financial return to work and how it is taxed, where the past...

Conventional in-work benefits or tax credits are now well established as a policy instrument for increasing labour supply and tackling poverty. A different sort of in-work credit is one where the payments are time-limited, conditional on previous receipt of welfare, and, perhaps, not...

We develop a framework to conduct experiments for estimating direct and spillover effects when units are grouped into mutually exclusive clusters. Crucially, our framework accounts for heterogeneous treatment effects across clusters and heterogeneous cluster sizes, which are pervasive in...

We set up a framework to conduct experiments for estimating spillover effects when units are grouped into mutually exclusive clusters. We improve upon existing methods by allowing for heteroskedasticity, intra-cluster correlation and cluster size heterogeneity, which are typically ignored when...

We assess the usefulness of stochastic redistribution among a continuum of risk-averse agents with quasilinear utilities in labor. Agents differ according to their consumption tastes, which remain private information. We identify circumstances where stochastic redistribution is socially...

We consider optimal anonymous consumption taxes in situations where the magnitude of an externality varies with individuals who cause it. For instance, urban fuel consumers generate greater pollution damages compared to rural consumers, but both groups are subjected to the same fuel tax. We...

In a second best environment, the optimal policy choice sometimes follows the first best rules. This note lays down the information structure and separability assumptions under which this property holds in a variety of setups.

Heterogeneity is likely to be an important determinant of the shape of optimal tax schemes. This article addresses the issue in a model à la Mirrlees with a continuum of agents. The agents differ in their productivities and opportunity costs of work, but their labor supplies depend only on a...