A positive correlation between productivity and export market participation has been well documented in producer micro data. Recent empirical studies and theoretical analyses have emphasized that this may reflect the producer's other investment activities, particularly investments in Ramp;D or...

We develop a model of international trade with heterogeneous firms and endogenous quality choices. Producing higher quality involves returns to scale, it is intensive in skilled labor and high-quality inputs. Firms' quality choices are interrelated because firms sell their goods to consumers and...

using a novel plant-level dataset from Taiwan (1992-2004), that new product introductions are a key contributor to increases in plant-level factor productivity. We then formulate and calibrate a span-of-control model of product choice and firm dynamics in which new products embody the frontier...

We study a model of industry dynamics in which idiosyncratic risk is uninsurable and establishments are subject to a financing constraint. We ask: does the model, when parameterized to match salient characteristics of plant-level data (Colombia and South Korea), predict large aggregate TFP...

We develop a model of international trade with heterogeneous firms and endogenous quality choices. Producing higher quality involves returns to scale, it is intensive in skilled labor and high-quality inputs. Firms' quality choices are interrelated because firms sell their goods to consumers and...