Geography causes African countries to experience a ‘proximity gap’. To overcome this gap a ‘big push’ may be needed in infrastructure. The cross-border nature of such infrastructure requires regional cooperation in at least four issues: transport infrastructure, trade facilitation,...

This paper studies the impact of physical distance and different relational proximity types on the formation of the Internet infrastructure. Although there is some anecdotal evidence on the 'end of geography' effect of the Internet, the relationship between physical space and the Internet has...

This paper addresses new trends in quantitative geography research. Modern social science research - including economic and social geography - has in the past decades shown an increasing interest in micro-oriented behaviour of actors. This is inter alia clearly reflected in spatial interaction...

Using an analytically solvable equilibrium model, we study how the distribution of economic activities is affected by the trade-off between pecuniary externalities, as dependent on transportation costs, and localized technological externalities, as dependent on inter-regional spillovers. We...

Der ostdeutsche Dienstleistungssektor hat seit 1995 kontinuierlich Beschäftigung aufgebaut und somit erheblich zur Stabilisierung der wirtschaftlichen Entwicklung beigetragen. Allerdings blieben Leistungskraft und Wachstum hinter der Entwicklung in Westdeutschland zurück. Deutliche Defizite -...

Vielerorts zählt die "Freizeit- und Tourismusbranche" gegenwärtig zu den wachstumsstärksten Wirtschaftsbereichen. Mit dieser Dynamik geht eine galoppierende Ausdifferenzierung des Angebotes und der Nachfrage einher, deren freizeit- und tourismuswissenschaftliche Aufarbeitung eine große...

In this review article I place industrial economics at the center of the explanation for the geographic properties of Internet infrastructure, applying this established mode of analysis to the unique cost structures and demand characteristics of these markets. I begin with an overview of the...

We develop a model with two asymmetric countries. Firms choose the number and the location of plants that they operate. The production of each firm increases when trade costs fall. The fall also induces multinationals to repatriate their production into a single country, which is likely to be...

Urbanization economies - the effects on productivity and utility created endogenously by larger cities - are a fundamental component of both the economic geography of modern societies and the perpetuation of innovation and economic growth at a national level. Cities account for vast majorities...

Technological change is a central element in macroeconomic growth explanation. Endogenous growth models take a revolutionary step towards better understanding the economic growth process by deriving technological change from profit-motivated individual behavior. In endogenous growth theory...