Using a unique confidential data set with industry disaggregation of official U.S. claims and liabilities, we find that dollar-denominated securities are increasingly inter-mediated by tax havens financial centers (THFC) and by less regulated funds. These securities are risky and respond to...

Using a unique confidential data set with industry disaggregation of official U.S. claims and liabilities, we find that dollar-denominated securities are increasingly inter-mediated by tax havens financial centers (THFC) and by less regulated funds. These securities are risky and respond to...

Trade unions are often argued to cause allocative inefficiencies and to lower welfare. We analyze whether this evaluation is also justified in a Cournot-oligopoly with free but costly entry. If input markets are competitive and output per firm declines with the number of firms (business...

Trade unions are often argued to cause allocative inefficiencies and to lower welfare. We analyze whether this evaluation is also justified in a Cournot-oligopoly with free but costly entry. If input markets are competitive and output per firm declines with the number of firms (business...

I develop a model of dynamic firm entry, oligopolistic competition and returns to scale in order to decompose TFP fluctuations into technical change, economic profit and markup fluctuations. I show that economic profits cause short-run upward bias in measured TFP, but this subsides to upward...

We develop a model of sluggish firm entry to explain short-run labor responses to technology shocks. We show that the labor response to technology and its persistence depend on the degree of returns to labor and the rate of firm entry. Existing empirical results support our theory based on...