//-->
Illegal immigration and economic welfare
Yoshida, Chisato, (2000)
Why does immigration divide America? : Public finance and political opposition to open borders
Hanson, Gordon H., (2005)
The Americas in the new international division of labor
Sanderson, Steven E., (1985)
Regional policy : rationale, foundations and measurement of its effects
Dijk, Jouke van, (2009)
Arbeidsmarkt en regio
Dijk, Jouke van, (2001)
Progress in regional science