Value and momentum portfolios exhibit strong opposite signed exposure to an aggregate risk factor based on low frequency fluctuations in the capital share. This strong opposite signed exposure helps explain why both strategies earn high average returns yet are negatively correlated. But the...

We introduce firm and worker heterogeneity into a model of innovation-driven endogenous growth. Individuals who differ in ability sort into either a research sector or a manufacturing sector that produces differentiated goods. Each research project generates a new variety of the differentiated...

We use the method of indirect inference, using the bootstrap, to test the Smets and Wouters model of the EU against a VAR auxiliary equation describing their data; the test is based on the Wald statistic. We find that their model generates excessive variance compared with the data. But their...

The effects of Regional Trade Agreements (RTAs) are disputed. In this paper, we assess these effects using capital market data and an event-study approach, using a daily data set covering a thousand announcements spanning over eighty economies and a hundred RTAs over twenty recent years. We...

I examine the hypothesis that membership in the World Trade Organization (WTO) and its predecessor the General Agreement on Tariffs and Trade (GATT) has increased the stability and predictability of trade flows. I use a large dataset covering annual bilateral trade flows between over 175...

One reason why countries service their external debts is the fear that default might lead to shrinkage of international trade. If so, then creditors should systematically lend more to countries with which they share closer trade links. We develop a simple theoretical model to capture this...

As communication costs fall, foreign embassies and consulates have lost much of their role in decision-making and information-gathering. Accordingly, foreign services are increasingly marketing themselves as agents of export promotion. I investigate whether exports are in fact systematically...