This paper explores the link between mobility and the presence of international research networks. Data come from the GlobSci survey of authors of articles published in 2009 in four fields of science working in sixteen countries. Summary evidence suggests that migration plays an important role...

We report results from the first systematic study of the mobility of scientists engaged in research in a large number of countries. Data were collected from 17,182 respondents using a web-based survey of corresponding authors in 16 countries in four fields during 2011. We find considerable...

We investigate performance differentials associated with mobility for research active scientists residing in a broad spectrum of countries and working in a broad spectrum of fields using data from the GlobSci survey. We distinguish between two categories of mobile scientists: (1) those studying...

Will smart machines replace humans like the internal combustion engine replaced horses? If so, can putting people out of work, or at least out of good work, also put the economy out of business? Our model says yes. Under the right conditions, more supply produces, over time, less demand as the...

In the Wealth of Nations, Adam Smith argues that a country's national income depends on its labor productivity, which in turn hinges on the division of labor. But why are some countries able to take advantage of the division of labor and become rich, while others fail to do so and remain poor?...

Colonial Americans complained that gold and silver coins (specie) were chronically scarce. These coins could be acquired only through importation. Given unrestricted trade in specie, market arbitrage should have eliminated chronic scarcity. A model of efficient barter and local inside money is...

This paper summarizes the major research contributions of Zvi Griliches.

This paper examines the influence of Irving Fisher's writings on Milton Friedman's work in monetary economics. We focus first on Fisher's influences in monetary theory (the quantity theory of money, the Fisher effect, Gibson's Paradox, the monetary theory of business cycles, and the Phillips...

From the perspective of the late 1930s and 1940s the dominant view was that the inter-war currency experience was a financial disaster. The view is perfectly encapsulated in the League of Nations' publication The Inter-war Currency Experience, the bulk of which was written by Ragnar Nurkse and...

Volatility in exchange rates is a prominent feature of open economies, a fact which has motivated elaborate attempts in many countries at exchange rate management. This paper analyzes quantitatively the welfare effects of exchange rate risk in a general two-country environment. It finds that the...