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Exchange ratio determination in a market equilibrium

Enrico Moretto (Dipartimento di Economia, Università di Parma, Parma, Italy, and)
Stefano Rossi (Department of Finance, Stockholm School of Economics, Stockholm, Sweden)

Managerial Finance

ISSN: 0307-4358

Article publication date: 14 March 2008




The paper aims to present an exchange ratio for merging companies that incorporates the change in the level of riskiness.


The paper is a theoretical one. Its main objective has been achieved exploiting standard modern finance results such as Capital Asset Pricing Model Capital Asset Pricing Model (CAPM).


The paper offers a formula that determines a risk‐adjusted exchange ratio that takes into account both risk and synergy.

Research limitations/implications

Due to the fact that CAPM is applied and beta factors are required, the formula is fully applicable only to companies whose stocks are traded on a financial market. Empirical test of the exchange ratio formula (using, for instance, an event‐study methodology) should be performed.

Practical implications

The use of the formula allows the identification of whether the offered exchange ratio fully reflects the expected return/risk profile for stockholders of the merging companies.


The paper should be useful in both theoretical and managerial conditions. It carries a way to embed relative riskiness of two companies into a simple formula.



Moretto, E. and Rossi, S. (2008), "Exchange ratio determination in a market equilibrium", Managerial Finance, Vol. 34 No. 4, pp. 262-270.



Emerald Group Publishing Limited

Copyright © 2008, Emerald Group Publishing Limited

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