The paper first analyzes the pattern of trade for China and India in the new century. We find that: (1) Both countries have high openness ratios that positively associated with their growing labor productivity over years. (2) China’s world export share keeps increasing whereas India maintains...

We derive a simple equation to calculate the global welfare impact of the simultaneous reduction of trade costs between multiple country-pairs. Interestingly, we find that we obtain the same equation for a broad class of trade models. Moreover, balanced trade is mostly not required for the...

Firms play a critical role in the global economy. In this paper, we survey the behavior of firms in the international economy, both in theory and in the data. We first summarize the key empirical facts that motivate the study of firms in trade. Then, we detail recent theoretical developments on...

We consider network effects in the monopolistically competitive model of trade developed by Melitz and Ottaviano (2008). We show that a larger network effect intensifies competition by allowing more-productive firms to raise prices and earn higher profits, but forcing less-productive firms to...

Growing empirical literature shows that financial constraints are reduce the chance of exporting, suggesting that financial constraints are an important determinant of international trade patterns. In this aspect, I develop a model of international trade based on new trade theory with financial...

Using a gravity model, this article presents an analysis of aggregate trade flows aimed at identifying China's impact on Latin America's trade. The results obtained indicate that: i) China´s growth in the last years implied a growing supply of exports to this market from most countries in the...

Helpman, Melitz and Rubinstein (2008) derive gravity equations to estimate effects of trade barriers on the intensive and extensive margins of trade. They exploit the frequency of zeros in aggregate bilateral trade data to identify effects on the extensive margin and to obtain controls for firm...

A striking pattern in transaction-level data is the concentration of international shipments in the hands of a few large firms. One common feature of dominating high-performance firms is that they produce multiple products and ship them to many destinations. Motivated by the emergence of highly...

Helpman, Melitz and Rubinstein (2008) derive gravity equations to estimate effects of trade barriers on the intensive and extensive margins of trade. They exploit the frequency of zeros in aggregate bilateral trade data to identify effects on the extensive margin and to obtain controls for firm...