We propose a simple test that uses information on workers’ mobility, wages and firms’ profits to identify the sign and strength of assortative matching. The basic intuition underlying our empirical strategy is that, in the presence of positive (negative) assortative matching, good workers...

The paper explores the fit properties of a class of multivariate Lévy processes, which are characterized as time-changed correlated Brownian motions. The time-change has a common and an idiosyncratic component, to re ect the properties of trade, which it represents. The resulting process may...

This paper constructs a class of multivariate Gaussian marked Poisson processes to model asset returns. The model proposed accommodates the cross section properties of trades, allows for returns to be correlated conditional on trading activity, and preserves the economic intuition of normality...

In this paper I provide estimates of the impact of immigration on native wage and employment levels (rather than on wage inequality which has been the focus of the literature). I use variation within 2-digit industries across regions using Austrian panel data from 1986 to 2004 for...

We use a unique data set providing administrative information on earnings by skill-level (blue collars, white collars), on the local stock of human capital and on several firm’s characteristics, including balance sheet data, to investigate the size of localized human capital externalities in...

Administrative data from INPS (Italian Institute for Social Security) on Italian high tenure workers job-histories (15 years, from 1985 to 1999) is used to quantify the temporal pattern of the effect of displacement on workers’ earnings, employment and wages. Moreover, I distinguish different...

The traditional multivariate Lévy process constructed by subordinating a Brownian motion through a univariate subordinator presents a number of drawbacks, including the lack of independence and a limited range of dependence. In order to face these, we investigate multivariate subordination,...

Time-changed Brownian motions are extensively applied as mathematical models for asset returns in Finance. Time change is interpreted as a switch to trade-related business time, different from calendar time. Time-changed Brownian motions can be generated by infinite divisible normal mixtures....