In this paper we show that the relationship between trade liberalization and fi rm productivity is sensitive to the method used to estimate the production function. We estimate the productivity of Colombian manufacturing plants using the methods of Levinsohn and Petrin (2003), Ackerberg, Caves...

We show that a trade model with an exogenous set of heterogeneous firms with fixed operating costs has the same aggregate outcomes as a span-of-control model. Fixed costs in the heterogeneous-firm model are entrepreneurs' forgone wage in the span-of-control model

We consider policy distortions in a model where plants face idiosyncratic productivity shocks that evolve following a Brownian motion. Introducing idiosyncratic shocks into the model implies that plants have non-constant operating profits and as a result there is an endogenous exit margin and...

Applied general equilibrium (AGE) models, which feature multiple countries, multiple industries, and input–output linkages across industries, have been the dominant tool for evaluating the impact of trade reforms since the 1980s. We review how these models are used to perform policy analysis...

We study the behaviour of Canadian total factor productivity growth over the past 60 years. We find that the observed stagnation during the last 20 years is entirely accounted for by the Oil sector. Higher oil prices made capital-intensive sources of oil like the oil sands viable to extract on a...

A recent empirical literature has documented that credit availability is a significant barrier for firm-level exports. We develop a dynamic general equilibrium trade model with heterogeneous monopolistic competitive firms and imperfect credit markets due to limited contract enforceability. We...

We measure the impact of increasing integration between rural villages and outside labor markets. Seasonal flash floods cause exogenous and unpredictable loss of market access. We study the impact of new bridges that eliminate this risk. Identification exploits variation in riverbank...

We deliver one month's average profit to a randomly selected group of female microenterprise owners in the Kenyan slum of Dandora, just preceding with the exponential growth of COVID-19 cases. Firm profit, inventory spending, and food expenditures all increase. The transfers simultaneously cause...