Econometrics
of Corporate Governance Studies
A vast
theoretical and empirical literature in corporate finance considers the interrelationships
of corporate governance, takeovers, management turnover, corporate performance, corporate
capital structure, and corporate ownership structure. Most of the studies look at two
variables at a time. In this book Sanjai Bhagat and Richard Jefferis argue that from an
econometric viewpoint, the proper way to study the relationship between any two of these
variables is to set up a system of simultaneous equations that specifies the relationships
among the six variables. The specification and estimation of such a system of simultaneous
equations, however, is nontrivial.
The authors illustrate their argument with a discussion of the impact of corporate
anti-takeover measures on takeovers and managerial job-tenure. During the past two
decades, an overwhelming majority of publicly held U.S. corporations have adopted
anti-takeover measures. The authors show that, contrary to expectation, defense measures
are ineffective in preventing takeovers and the frequency of CEO departures is unrelated
to takeover defenses. At firms with poison pill defenses, however, there is a
statistically significant relationship between management turnover and company
performance.
'Much of
the empirical work on corporate governance suffers from endogeneity problems that confound
the interpretation of the results. I applaud Bhagat and Jefferis's efforts to address this
problem head-on using modern econometric techniques." James A. Brickley,
(Sleason Professor of Business Admmistratiofl, William Simon: Graduate School of
Business,; University ofRochester
"Bhagat
and Jefferis's new book provides researchers and market participants with an important set
of insights into how the elements of our corporate governance system interact to influence
firm performance. The book presents a careful, detailed, and ultimately successful set of
analyses of the complex web of principal-agent relationships that comprise a
company's corporate governance environment." Tim Opter, Director, Investment
Banking, .Credit "Suisse First ''Boston
"This
is a terrific, superbly crafted book a financial detective story in the classic mode. The
careful exposition keeps you turning the pages and led me to a com-fortable grasp of the
key issues in a slippery area of Inquiry. I enjoyed the book: very much."
James; D, Beck, Rifst Vice President, Salomon Smith Barney
114 pages
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