This paper tests whether aggregate matching is consistent with unemployment being mainly due to search frictions or due to job queues. Using U.K. data and correcting for temporal aggregation bias, estimates of the random matching function are consistent with previous work in this field, but...

We provide a quantitative assessment of the welfare cost of tax competition or, equivalently, the welfare benefit of international tax policy cooperation. We use a simple multi-country general equilibrium model of a world economy, in which there are two types of cross-country spillovers: the...

We welfare rank various tax-spending-debt policies in a New Keynesian model of a small open economy featuring sovereign interest-rate premia and loss of monetary policy independence. When we compute optimized state-contingent policy rules, our results are: (a) Debt consolidation comes at a...