Some cultural goods, like clothes and films, are consumed socially and are thus characterized by the same consumption network externalities as languages. At the same time, producers of new cultural goods in any one country draw on the stock of ideas generated by previous cultural production in...

We construct the first direct classification of goods as luxuries or necessities that is compatible with international trade data. We then use it to test an idea that has not been tested directly in the literature: countries income distributions are important determinants of their import demand,...

This paper uses a Ricardian model to generate predictions about the influence of institutions on trade in differentiated (complex) and commoditized (simple) products and then uses a rich international trade data set for empirical tests. The model draws the distinction between the role of...

We argue that the quality of institutions that enforce contracts and protect property rights influences the costs of producing high-value added (complex) versus low-value added (simple) products. Since data is hardly available for domestic transactions, we generate predictions about the...

What determines competition dynamics in markets with indirect network effects? We analyze this question in a dynamic hardware-software framework, where software firms compete in quality upgrades. We identify market structure as a major determinant of competition dynamics. Indirect network...

Recent changes in comparative advantage in the largest OECD economies differ significantly from the predictions of Heckscher-Ohlin-Vanek theory. Japan's rising share of OECD machinery exports and the improvement in the comparative advantage of the USA and Germany in heavy industry were...