@phdthesis{Kranich2009, author = {Jan Kranich}, title = {Modeling the New Economic Geography - R\&D, Vertical Linkages, Policy Implications}, type = {doctoralthesis}, pages = {120}, school = {Leuphana Universit{\"a}t L{\"u}neburg, Universit{\"a}tsbibliothek der Leuphana Universit{\"a}t L{\"u}neburg}, year = {2009}, }