In a two-country portfolio model with leverage constraints, I focus on private assets in order to understand how their behaviour can justify an expected excess return as well as the flight-to-safety observed in the data. The specific goal is to study how much these phenomena are explained by the...

If women make different economic decisions than men on average, then an increase in women's influence in the political and economic spheres of society might change economic outcomes. In this note, we focus on the impact of female enfranchisement on fiscal policy outcomes. We present a simple...

The Recent crises have seen very large spikes in asset price risk without dramatic shifts in fundamentals. We propose an explanation for these risk panics based on self-fulfilling shifts in risk made possible by a negative link between the current asset price and risk about the future asset...

We study the incidence of offshoring, or trade in tasks, on firms' productivity and on manufacturing employment in a standard economic-geography model with iceberg trade costs and a continuum of tasks. In a two-countries world where one country has a Hick's neutral technological edge over the...

Offshoring has gained a significant momentum in recent years. Firm size appears to be the leading factor differentiating firms that offshore from those that do not. We present a model that blends offshoring, or trade in tasks, with a Melitz-style model of monopolistic competition with...

In this paper we analyze R&D collaboration networks in industries where firms are competitors in the product market. Firms' benefits from collaborations arise by sharing knowledge about a cost-reducing technology. By forming collaborations, however, firms also change their own competitive...

Biconcavity is a simple condition on inverse demand that corresponds to the ordinary concept of concavity after simultaneous parameterized transformations of price and quantity. The notion is employed here in the framework of the homogeneous-good Cournot model with potentially heterogeneous...

We bring together some recent advances in the literature on vector autoregressive moving-average models creating a relatively simple specification and estimation strategy for the cointegrated case. We show that in the cointegrated case with fixed initial values there exists a so-called final...

We study the stability of voluntary cooperation in response to varying group growth rates. Using a laboratory public-good game, we construct a situation where increasing group size yields potential efficiency gains, but only with sustained cooperation. We then study the effect of exogenously...

This paper investigates the influence of physical attractiveness on cooperative behavior. We survey data from 211 episodes of a television game show and combine it with independent facial attractiveness ratings of the show's contestants. The final of the show represents a simultaneous one-shot...