We analyze optimal capital and labor taxes in a model where (i) the government makes noncontingent announcements about future policies and (ii) ex-post statecontingent deviations from these announcements are costly. With Full Commitment, optimal fiscal announcements are unbiased forecasts of...

We consider models where the Ramsey-optimal fiscal policy under Full Commitment (FC) is time-inconsistent and define a new notion of optimal policy, Limited-Time Commitment (LTC). Successive one-period lived governments can commit to future plans over a finite horizon. We provide a sufficient...

We characterize the dispersion of firm-level productivity and demand shocks using Swedish microdata including prices and utilization and analyse the consequences for firms and the aggregate economy. Demand dispersion increases by more than TFPQ dispersion in recessions. Productivity shocks pass...

We characterize the dispersion of firm-level productivity and demand shocks over the business cycle using Swedish microdata including prices and analyse the consequences for firms and the aggregate economy. Demand dispersion increases by more than productivity dispersion in recessions....

Firms' sensitivities to business cycles differ by size and age. The differences are large: "young and small firms" are more cyclical than large firms, whereas "old and small" firms are closer to acyclical. A heterogeneous-firm model with heterogeneous returns to scale can replicate these...

This paper develops and estimates a fully microfounded equilibrium business cycle model of the US labor market with aggregate productivity shocks. Those microfoundations are consistent with evidence regarding the underlying distribution of firm growth rates across firms [by age and size] and,...

The impact of the Covid-19 pandemic on the UK labour market has been extremely heterogeneous across occupation and industrial sectors. Using novel data on job search, we document how individuals adjust their job search behaviour in response to changing employment patterns across occupations and...

The impact of the Covid-19 pandemic on the UK labour market has been extremely heterogeneous, with strong variation both by occupation and industrial sector. The extent to which workers adjust their job search behaviour in response to this reallocation of employment has an important bearing on...

We develop a model of capital accumulation in an open economy that imports investment goods from large foreign firms with market power. We model investmentgoods producers as a dynamic oligopoly and characterize a Markov Perfect Equilibrium with a Generalized Euler Equation. We use this...