Zugl.: Duisburg, Essen, Univ., Diss.

Zugl.: Hamburg, Univ., Diss., 2009

Univ., Diss., 2006--Marburg

This article presents a framework within which the effects of demographic change on both agglomeration and growth of economic activities can be analyzed. I introduce an overlapping generation structure into a New Economic Geography model with endogenous growth due to learning spillovers and focus on the effects of demographic structures on long-run equilibrium outcomes and stability properties. First, life-time uncertainty is shown to decrease long-run economic growth perspectives. In doing so, it also mitigates the pro-growth effects of agglomeration resulting from the localized nature of learning externalities. Second, the turnover of generations acts as a dispersion force whose anti-agglomerative effects are, however, dampened by the growth-linked circular causality being present as long as interregional knowledge spillovers are not perfect. Finally, lifetime uncertainty also reduces the possibility that agglomeration is the result of a self-fulfilling prophecy. (author's abstract) / Series: Department of Economics Working Paper Series

Zugl.: Frankfurt(Oder), Universiẗat Viadrina, Diss., 2005.

This article investigates agglomeration processes in aging societies by introducing an overlapping generation structure into a New Economic Geography model. Whether higher economic integration leads to spatial concentration of economic activity crucially hinges on the economies' demographic properties. While population aging as represented by declining birth rates strengthens agglomeration processes, declining mortality rates weaken them. This is due to the fact that we allow for nonconstant population size. In particular, we show that population growth acts as an important dispersion force that augments the distributional effects on agglomeration processes resulting from the turnover of generations. (author's abstract) / Series: Department of Economics Working Paper Series

This paper focuses on the development of technology clusters and based on this, on two research questions: What are the preconditions for technology cluster development according to cluster research? And, does the region Mainfranken fulfill the requirements for a technology cluster formation? For this purpose, a qualitative study will be conducted by referring to various theoretical concepts of cluster formation. Due to this, the following determinants of cluster development can be deduced into: the traffic infrastructure and infrastructure component, the cluster environment component, the university component, the state component and the industrial component. The analysis of the parameter value of the separate cluster components shows that the core requirements of technology cluster development in the region of Mainfranken are fulfilled. Nevertheless, it is necessary to improve the infrastructure, the commercial and industrial availability of land and availability of capital to form a successful technology cluster. Within the framework of this paper, the potential of technology cluster development in the field of artificial intelligence could also be analyzed. / Dieser Beitrag konzentriert sich auf die Entwicklung von Technologieclustern und basiert auf zwei Forschungsfragen: Was sind die Voraussetzungen für die Entwicklung von Technologieclustern gemäß der Clusterforschung? Und erfüllt die Region Mainfranken die Voraussetzungen für eine Technologieclusterbildung? Zu diesem Zweck wird eine qualitative Studie unter Bezugnahme auf verschiedene theoretische Konzepte der Clusterbildung durchgeführt. Aus diesem Grund können die folgenden Determinanten der Clusterentwicklung abgeleitet werden: die Verkehrsinfrastruktur- und Infrastrukturkomponente, die Clusterumfeldkomponente, die Universitätskomponente, die Staatskomponente und die Branchenkomponente. Die Analyse der Parameterwerte der einzelnen Clusterkomponenten zeigt, dass die Kernanforderungen der Technologieclusterentwicklung in der Region Mainfranken erfüllt sind. Dennoch ist es notwendig, die Infrastruktur, die kommerzielle und industrielle Verfügbarkeit von Land und die Verfügbarkeit von Kapital zu verbessern, um ein erfolgreiches Technologiecluster zu bilden. Im Rahmen der vorliegenden Arbeit konnte darüber hinaus das Potenzial der Technologieclusterentwicklung im Bereich der künstlichen Intelligenz analysiert werden.

Univ., Diss.--Göttingen, 2003.

New Economic Geography (NEG) models do not typically account for the presence of regions other than the ones involved in the integration process. We explore such a possibility in a Footloose Entrepreneur (FE) model aiming at studying the stability properties of long-run industrial location equilibria. We consider a world economy composed by a customs union of two regions (regions 1 and 2) and an "outside region" which can be regarded as the rest of the world (region 3). The effects of economic integration on industrial agglomeration within the customs union are studied under the assumption of a constant distance between the customs union itself and the third region. The results show that higher economic integration does not always implies the standard result of full agglomeration of FE models. This incomplete agglomeration outcome is due to the fact that the periphery region keeps a share of industrial activities in order to satisfy a share of "external demand". That is, the deindustrialization process brought about by economic integration in the periphery of the union is mitigated by the demand of consumers living in the rest of the world. In general, the market size of the third region affects the number of the long-run equilibria, as well as their stability properties. In addition to the standard outcomes of FE models, we describe the existence of two asymmetric equilibria characterised by unequal distribution of firms between regions 1 and 2, with no full agglomeration though. Interestingly, these equilibria are stable and therefore can be regarded as a likely long-run equilibrium state of the economy. (author's abstract) / Series: Department of Economics Working Paper Series