International trade economists typically assume that TFP for each industry is the same in every country. This paper casts doubt on this hypothesis, finding large and persistent TFP differences across countries. The paper considers measurement issues in depth, and a methodology for international...

In the last quarter century, wage inequality has increased dramatically in the United States. At the same time, the United States has become more integrated into the world economy, relative prices of final goods have changed, the capital stock has more than doubled, and the labor force has...

Wage inequality in the United States has increased in the past two decades, and most researchers suspect that the main causes are changes in technology, international competition, and factor supplies. The relative importance of these causes in explaining wage inequality is important for policy...

A core prediction of the Heckscher-Ohlin theory is that countries specialize in goods in which they have a comparative advantage, and that the source of comparative advantage is differences in relative factor supplies. To examine this theory, we use the most extensive data set available and...

International trade economists typically assume that there are no cross-country differences in industry total factor productivity (TFP). In contrast, this paper finds large and persistent TFP differences across a group of industrialized countries in the 1980s. The paper calculates TFP indices,...

The standard neoclassical model of trade theory predicts that international specialization will be jointly determined by cross-country differences in relative factor endowments and relative technology levels. This paper uses economic theory to specify an empirical model of specialization...

An important element of the cost of distance is time taken in delivering final and intermediate goods. We argue that time costs are qualitatively different from direct monetary costs such as freight charges. The difference arises because of uncertainty. Unsynchronised deliveries can disrupt...

Harrigan and Martin assess the viability of major cities, and New York in particular, in the face of catastrophes such as terrorist attacks by considering why cities exist in the first place. They conclude that the same forces thought to lead to the formation of cities—namely, the economic...

The September 11 attacks in New York and Washington have forced Americans to confront the fact that to live or work in a large city is to be at greater risk of large-scale terrorism. What do these risks, and the public perception of them, imply for cities in general and the future of New York...