This paper studies why illegal immigration is widespread. We develop a political agency model in which a politician decides on an immigration target and its enforcement, facing uncertainty on the supply of migrants. Illegal immigration can arise for two reasons: the policy maker may be unable to...

We build a general equilibrium model in which both illegal immigration and the size of the informal sector are endogenously determined. In this framework, we show that indirect policy measures such as tax reduction and detection of informal activities can be used as substitutes for border...

We use data from the New Immigrant Survey (NIS) for data on immigrants who were legalized based on family ties or small-scale legalization programs, and the Legalized Population Survey (LPS) for data on immigrants legalized by the IRCA. Estimates suggest that the increase in wage after...

This paper develops a model of optimizing behavior of asylum seekers whose objective is to reach an advanced country. Their personal characteristics and the challenges anticipated along the way determine whether they try to reach the ultimate destination with the aid of human smugglers or by...

Irregular migrants from Africa and the Middle East flow into Europe along land and sea routes under the control of human smugglers. The demise of the Gaddafi regime in 2011 marked the opening of the Central Mediterranean Route for irregular border - crossing between Libya and Italy. This...

This paper examines the effects of reducing the supply of low-skilled immigrant workers on the labor market outcomes of domestic workers. We use temporal and geographic variation in the introduction of Secure Communities (SC), a county-based immigration enforcement policy, combined with data...