We investigate the origin and evolution of the legal institution of citizenship from a political economy perspective. We compile a new data set on citizenship laws across countries of the world which documents how these institutions have evolved in the postwar period. We show that, despite a...

Increasing immigration numbers in many parts of the world make it crucial for policy makers to think about effective integration policies. In this volume of the CESifo Forum we shed light on important mechanisms of immigrant integration: Access to citizenship and legal status in the destination...

We investigate the origin, impact and evolution of citizenship laws. Citizenship laws originate from the common and civil law traditions, which apply jus soli and jus sanguinis, respectively. We compile a data set across countries of the world starting from the 19th century. The impact of the...