This paper investigates the relationship between immigration and the size of the informal or underground economy. Using regional variation for the Spanish provinces we find that the massive immigration wave between 2000 and 2009 is highly correlated to the share of unregistered employment, a...

This paper extends the results in He et al. (2008) and Francq and Zakoian (2010) by obtaining the moments and some cross-moments of the unconditional distribution of the TGARCH(1,1) model under different specifications of the conditional mean. We find analytical expressions for the unconditional...

This paper analyzes the effects of immigration on the education system of the receiving country from a political economy perspective. Specifically, we extend the school-choice model by Epple and Romano (1996b) and Coen-Pirani (2011) by incorporating a subsidy to private schools, a distinguishing...

An innovation which bypasses the need for instruments when estimating endogenous treatment effects is identification via conditional second moments. The most general of these approaches is Klein and Vella (2010) which models the conditional variances semiparametrically. While this is attractive,...