THE NETWORK OF INTER-REGIONAL DIRECT INVESTMENT STOCKS ACROSS EUROPE

Stefano Battiston, Joao F. Rodrigues () and Hamza Zeytinoglu ()
Additional contact information
Joao F. Rodrigues: Chair for Systems Design, ETH Zurich, Kreuzplatz 5, 8032 Zurich, Switzerland
Hamza Zeytinoglu: Clarifix Ltd., Suite 302, 95 Wilton Road, London SW1V 1BZ, UK

Advances in Complex Systems (ACS), 2007, vol. 10, issue 01, 29-51

Abstract: We present an analysis of inter-regional investment stocks within Europe from a complex networks perspective. We consider two different levels: first, we compute the inward–outward investment stocks at the level of firms, based on ownership shares and number of employees; then we estimate the inward–outward investment stock at the level of regions in Europe, by aggregating the ownership network of firms, based on their headquarter location. To our knowledge, there is no similar approach in the literature so far, and we believe that it may lead to important applications for policy making. In the present paper, we focus on the statistical distributions and the scaling laws, while in further studies we will analyze the structure of the network and its relation to geographical space. We find that while outward investment and activity of firms are power law distributed with a similar exponent, for regions these quantities are better described by a log-normal distribution. At both levels we also find scaling laws relating investment to activity and connectivity. In particular, we find that investment stock scales as a power law of the connectivity, as previously found for stock market data.

Keywords: Geographical networks; complex networks; scaling laws; investment (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (7)

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Working Paper: The Network of Inter-Regional Direct Investment Stocks across Europe (2005)
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DOI: 10.1142/S0219525907000933

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