While employed, workers learn their comparative advantage and eventually choose occupations that best match their abilities. This learning process is consistent with a number of key facts about occupational mobility, such as the offsetting worker flows across occupations, the non-random patterns...

We introduce an equilibrium labor market model, where workers gradually learn about their unobserved production abilities. While engaged in a productive activity (occupation), workers observe their output and extract information that allows them to make inferences about their unobserved...

This paper introduces a model of internal labor markets that is consistent with the observed differences between workers in large and small firms with respect to wages and separation rates. In particular, firms constitute labor markets with no search frictions. Workers are free to move within a...

This paper argues that larger cities allow workers to find better occupational matches. We introduce a framework where workers are initially uncertain about the quality of their match with each occupation. They can switch occupations within cities at no cost, whereas moving across cities is...

Displaced workers who are forced to switch occupations are found to experience larger earning losses than those who don't (Kambourov and Manovskii (2009)). Occupational heterogeneity may imply that these losses are not necessarily the same across occupations. In addition, if human capital is...

We incorporate learning in a monopolistically competitive model of trade with heterogeneous firms. Exporting firms face uncertainty about the demand their product faces in a given market and decide how much marketing to invest in. The incorporation of marketing in the model is essential because...

This paper quantifies the impact of demand uncertainty and time to build on prices, investment and surplus in the world bulk shipping industry. We explore the impact of both construction lags and the lengthening of delivery lags in periods of high investment activity by constructing a dynamic...

This paper explores the nature of fluctuations in world bulk shipping by quantifying the impact of time to build and demand uncertainty on investment and prices. We examine the impact of both construction lags and their lengthening in periods of high investment activity, by constructing a...

This paper provides a model-based empirical strategy to, (i) detect the presence and gauge the magnitude of government subsidies and (ii) quantify their impact on production reallocation across countries, industry prices, costs and consumer surplus. I construct and estimate an industry model...