This paper evaluates the e¤ects of policy interventions on sectoral labour markets and the aggregate economy in a business cycle model with search and matching frictions. We extend the canonical model by including capital-skill complementarity in production, labour mar- kets with skilled and...

This paper analyses optimal income taxes over the business cycle under a balanced-budget restriction, for low, middle and high income agents. A model incorporating capital-skill complementarity in pro- duction and differential access to capital and labour markets is de- veloped to capture the...

This paper undertakes a normative investigation of the quantita- tive properties of optimal tax smoothing in a business cycle model with state contingent debt, capital-skill complementarity, endogenous skill formation and stochastic shocks to public consumption as well as total factor and...

This paper considers the role of human capital accumulation of agents differentiated by skill type in the joint determination of social mobility and the skill premium. Our approach allows us to evaluate the dynamic e¤ects of tax reforms and education spending policies on economic e¢ ciency as...

This paper studies the aggregate and distributional implications of Markov-perfect tax-spending policy in a neoclassical growth model with capitalists and workers. Focusing on the long run, our main …ndings are: (i) it is optimal for a benevolent government, which cares equally about its...

In this paper we examine the importance of imperfect competition in product and labour markets in determining the long-run welfare e¤ects of tax reforms assuming agent heterogeneneity in capital hold- ings. Each of these market failures, independently, results in welfare losses for at least a...

Robust decision making implies welfare costs or robustness premia when the approximating model is the true data generating process. To examine the importance of these premia at the aggregate level we employ a simple two-sector dynamic general equilibrium model with human capital and introduce an...

This paper addresses the issue on whether tax reforms consistent with lower public debt-to-GDP in the long-run can lead to a more efficient and equitable economy. To this end we solve a heterogeneous agent model comprised of a government, a representative capitalist and representative skilled...

The stylized facts suggest a negative relationship between tax progres- sivity and the skill premium from the early 1960s until the early 1990s, and a positive one thereafter. They also generally imply rising tax progressivity, except for the 1980s. In this paper, we ask whether optimal tax...

This paper uses a micro-founded DSGE model to compare second-best optimal environmental policy and the resulting allocation to first-best allocation. The focus is on the source and size of uncertainty, and how this affects optimal choices and the inferiority of second best vis-à-vis first best.