WILLIAM N. GOETZMANN () (Yale School of Management - International Center for Finance) MASSIMO MASSA () (INSEAD - Department of Finance) ANDREI SIMONOV () (Stockholm School of Economics - Department of Finance)
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We study the puzzle of portfolio underdiversification and proximity investment from a novel perspective, linking it to the process of urbanization. We find that urban portfolios are more focused - i.e., less diversified and more concentrated in 'close' stocks. We explain it in terms of the process of 'professional specialization' that characterizes urban environments. We test this against a number of alternative theories: financial sophistication, social competition and hedging non-financial risk. We show that the very same factors behind the drive to city agglomeration also affect both the degree of portfolio diversification and proximity investing by influencing investor information and risk.
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Cited by: (explanations, 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.)
Christiansen, Charlotte & Joensen, Juanna Schröter & Rangvid, Jesper, 2005.
"Do More Economists Hold Stocks?,"
Finance Research Group Working Papers
F-2005-02, University of Aarhus, Aarhus School of Business, Department of Business Studies.
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