Regional Externalities in the Dynamic System of Three Regions
This study presents theoretical models of the role of externalities across two and three dimensional regional economy. Two decades ago Krugman (1981) developed a model of uneven regional development. He showed that initial discrepancy in capital-labour ratios of the two adjacent, competing regions will cumulate over time, and will inevitably lead to the division into the capital-rich and capital-poor regions. Kubo (1995) presented an extension to Krugman?s model by incorporating not only scale economies within the regions but also regional externalities across regions. His model provided an explanation for different regional development patterns: uneven, joint and the mix of these two. In this study Kubo?s analysis is extended to study the dynamic properties of the development of the three regions instead of two regions. We characterise dynamics and the stability of steady states in the three-region model. In particular, we show under what conditions steady state is unique, and if there can be multiple steady states. We show that condition for even regional development in Kubo?s model, i.e. regional externalities are stronger than scale economies in each regions, is necessary, but not a sufficient condition for even regional development in a case of three region. Our study sheds light on e.g. the regional development in Northern Finland. A few years ago the idea of the regional network of Northern Finland was launched. That idea was meant to spread the economic growth of the city of Oulu - technologically advanced core region - to smaller peripheral areas. Models of this study offer potentially interesting frameworks to analyse different regional development patterns. Furthermore, our model can be used to analyse, how the domination of core region affects the growth of peripheral regions and what kind of regional policy should be implemented to promote economic growth in the periphery. Keywords: Scale economies, regional externalities, regional development JEL classification: C61, R12
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Masahisa Fujita & Paul Krugman & Anthony J. Venables, 2001. "The Spatial Economy: Cities, Regions, and International Trade," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262561476, July.
When requesting a correction, please mention this item's handle: RePEc:wiw:wiwrsa:ersa03p430. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Gunther Maier)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.