Mankiw and Reis (2002) have proposed sticky information as an alternative to Calvo sticky prices in order to model the conventional view that i) inflation reacts with delay and gradually to a monetary policy shock, ii) announced and credible disinflations are contractionary and iii) inflation...

Most economic activity occurs in cities. This creates a tension between local increasing returns, implied by the existence of cities, and aggregate constant returns, implied by balanced growth. To address this tension, we develop a theory of economic growth in an urban environment. We show how...

All industrialized countries experienced a transition from high birth rates and stagnant standards of living to low birth rates and sustained growth in per capita income. What contributed to this transformation? Were output and population dynamics driven by common or separate forces? We develop...

This paper attempts to provide a coherent general equilibrium explanation for the joint U.S-British evolution during the last thousand years. We typified this period by initial Malthusian stagnation (before 1500); discovery and colonization (between 1500 and 1750); independence of the colony and...

Using Compustat data, we document that prior to 1980, large R&D per-forming firms had higher R&D intensity (R&D/Sales) than small firms in the same industries. Over the course of the next two decades, in these same in-dustries, small firms came to rival and even surpass large firms in terms of...

This paper studies the economics of intellectual property transfer using new data on the transfers of patents. We first present evidence about how the transfer and the expiration of patents relate to age, patent citations received, whether the patent has been previously traded or not, and the...