NBER Publications by Jing Zhang

Using Korean firm-level data on publicly-listed and privately-held firms together with firm exit data, we find strong evidence of the balance-sheet effect for small firms at both the intensive and extensive margins. During the crisis, small firms with more short-term foreign debt are more likely to go bankrupt, and experience larger sales declines conditional on survival. The extensive margin accounts for a large fraction of small firms’ adjustment during the crisis. Consistent with many studies in the literature, large firms with larger exposure to foreign debt paradoxically have better performance during the crisis at both the intensive and extensive margin.

es.Using an industry-level dataset of production and trade spanning 75 countries and 5 decades, and a fully specified multi-sector Ricardian model, we estimate productivities at the sector level and examine how they evolve over time in both developed and developing countries. We find that in both country groups, comparative advantage has become weaker: productivity grew systematically faster in sectors that were initially at the greater comparative disadvantage. The global welfare implications of this phenomenon are significant. Relative to the counterfactual scenario in which an individual country's comparative advantage remained the same as in the 1960s, and technology in all sectors grew at the same country-specific average rate, welfare today is 1.9% lower for the median country. The w...

This paper studies the impact of cross-country variation in financial market development on firms' financing choices and growth rates using comprehensive firm-level datasets. We document that in less financially developed economies, small firms grow faster and have lower debt to asset ratios than large firms. We then develop a quantitative model where financial frictions drive firm growth and debt financing through the availability of credit and default risk. We parameterize the model to the firms' financial structure in the data and show that financial restrictions can account for the majority of the difference in growth rates between firms of different sizes across countries.