The literature on ownership structures has made continual use of notions such as cross-holdings and pyramids which are closely related to the vastly increasing network literature. We propose to transfer successfully applied network methods such as network graphs, the MAN-classification scheme,...

This article summarizes important aspects of illegal immigration. We analyse incentives of illegal immigrants as well as those of their employers by applying basic principles of labour economics, and by customising the workhorse of the economic theory of crime to suit the labour market for...