The previously documented trend toward more co- and multi-authored research in economics is partly (perhaps 20 percent) due to different research styles of scholars in different birth cohorts (of different ages). Most of the trend reflects profession-wide changes in research style. Older...

We study the instability of hyper-specialization of exports. We have two main findings. (1) Specializations are surprisingly unstable: Export ranks are not persistent, and new top products and destinations replace old ones. Measurement error is unlikely to be the main or only determinant of this...

This paper estimates the effect of sovereign debt renegotiation on international trade. Sovereign default may be associated with a subsequent decline in international trade either because creditors want to deter default by debtors, or because trade finance dries up after default. To estimate the...

This paper assesses the claim the the US faces an impending labor shortage due to the impending retirement of baby boomers and slow growth of the US work force, and that the country should orient labor market and educational policies to alleviate this prospective shortage. I find that this...

Digital labor markets are rapidly expanding and connecting companies and contractors on a global basis. We review the environment in which these markets take root, the micro- and macro-level studies of their operations, their ongoing evolution and recent trends, and perspectives for undertaking...

Workers and jobs are naturally heterogeneous and the quality of their interaction when paired is difficult to forecast. The Internet promises to open new channels for worker-firm communications. What are the consequences of this opening? I discuss three labor market features that may be altered:...

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...

Flexible labor markets require geographically mobile workers to be efficient. Otherwise firms can take advantage of the immobility of workers and extract rents at the expense of workers. In cultures with strong family ties, moving away from home is costly. Thus, to limit the rents of firms and...

The global distribution of talent is highly skewed and the resources available to countries to develop and utilize their best and brightest vary substantially. The migration of skilled workers across countries tilts the deck even further. Using newly available data, we first review the landscape...

This paper analyzes the tax haven investment behavior of multinational firms from a country that exempts foreign income from taxation. High foreign tax rates generally encourage firms to invest in tax havens, though significant costs of reallocating taxable income dampen these incentives. The...