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...

We establish the following stylized facts: (1) Exports are characterized by Big Hits, (2) the Big Hits change from one period to the next, and (3) these changes are not explained by global factors like global commodity prices. These conclusions are robust to excluding extractable products (oil...

Universal basic income (UBI) is an increasingly popular policy proposal but there is no evidence regarding its longer-term consequences. We study UBI in a general equilibrium model with imperfect capital markets, labor market shocks, and intergenerational linkages via skill formation and...

We study the impact of firm level choices of ICT, R&D, exporting and importing on the evolution of productivity and its bias towards skilled occupations. We use a novel measure of the propensity of a firm to engage in technology investment and adoption: its employment of workers with STEM...

We propose a theory that rising globalization and rising wage inequality are related because trade liberalization raises the demand facing highly competitive skill-intensive firms. In our model, only the lowest-cost firms participate in the global economy exactly along the lines of Melitz...

Using administrative employee-firm-level data on the entire private sector from 1994 to 2007, we show that the labor market in France has polarized: employment shares of high and low wage occupations have grown, while middle wage occupations have shrunk. During the same period, the share of...

The magnitude and the direction of net international capital flows does not fit neo-classical models. The 50 U.S. states comprise an integrated capital market with very low barriers to capital flows, which makes them an ideal testing ground for neoclassical models. We develop a simple...

We use detailed information about wages, education and occupations to shed light on the evolution of the U.S. financial sector over the past century. We uncover a set of new, interrelated stylized facts: financial jobs were relatively skill intensive, complex, and highly paid until the 1930s and...

Over the past 60 years, the U.S. financial sector has grown from 2.3% to 7.7% of GDP. While the growth in the share of value added has been fairly linear, it hides a dramatic change in the composition of skills and occupations. In the early 1980s, the financial sector started paying higher wages...

Politicians may use disguised' redistributive policies in order to circumvent opposition to explicit tax-transfer schemes. First, we present a theoretical model that formalizes this hypothesis; then we provide evidence that in US cities, politicians use public employment as such a redistributive...