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The Stock-exchange Industry: Network Effects, Implicit Mergers, and Corporate Governance


Carmine Di Noia


ASSONIME

1999

MARZO Working Paper No. 33

Abstract:     
The evolution and integration of financial markets in recent decades have created increasing competition among stock exchanges, which are behaving more and more like 'standard' firms. Stock exchanges are peculiar firms that produce listing, trading, and clearing services and 'sell' price information. They have different types of customers: firms that want to be listed, financial intermediaries who want to trade securities, and institutional and private investors. Some of them, in particular financial intermediaries, are often the 'owners' of the stock exchanges, which traditionally have been organized as cooperatives or public entities. This paper focuses on the stock-exchange industry, analyzing the competition among exchanges and, more theoretically, the corporate-governance problem of customer-controlled firms, of which stock exchanges are a clear example. Policy implications are provided in both cases. After the introductory chapter, the second chapter, 'Competition and Integration among Stock Exchanges in Europe: Network Effects, Implicit Mergers, and Remote Access', analyzes the role of network externalities in the stock-exchange industry through a model in which two exchanges compete. It is shown, using the European regulatory background, that competition may end up in inefficient equilibria while an 'implicit merger' may be Pareto optimal and give greater profits to both exchanges. In the end, exchanges may specialize in listing and trading services, or unilaterally start to trade stocks listed on other markets (as did Seaq-International some years ago or many automated trading systems in recent years).

Number of Pages in PDF File: 82

JEL Classification: G34, L89

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Date posted: January 11, 2000  

Suggested Citation

Di Noia, Carmine, The Stock-exchange Industry: Network Effects, Implicit Mergers, and Corporate Governance (1999). MARZO Working Paper No. 33. Available at SSRN: http://ssrn.com/abstract=200991 or http://dx.doi.org/10.2139/ssrn.200991

Contact Information

Carmine Di Noia (Contact Author)
ASSONIME ( email )
Piazza Venezia 11
ROMA, 00187
Italy
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