This paper analyzes the causal relations between firms’ productivity, factor intensity and export participation. Using propensity score matching techniques and firm-level panel data for Chinese manufacturing firms over the 1998-2007 period, we find strong evidence of domestic firms...

Existing studies show that intermediaries can help verify or screen product quality for buyers. This paper examines this claim both theoretically and empirically in the context of international trade. We develop a heterogeneous firm model that features vertical and horizontal differentiation of...