When Does the Market Matter? Stock Prices and the Investment of Equity-Dependent Firms

Malcolm Baker, Jeremy C. Stein and Jeffrey Wurgler

The Quarterly Journal of Economics, 2003, vol. 118, issue 3, 969-1005

Abstract: We use a simple model to outline the conditions under which corporate investment is sensitive to nonfundamental movements in stock prices. The key prediction is that stock prices have a stronger impact on the investment of "equity-dependent" firms—firms that need external equity to finance marginal investments. Using an index of equity dependence based on the work of Kaplan and Zingales, we find support for this hypothesis. In particular, firms that rank in the top quintile of the KZ index have investment that is almost three times as sensitive to stock prices as firms in the bottom quintile.

Date: 2003
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Working Paper: When Does the Market Matter? Stock Prices and the Investsment of Equity-Dependent Firms (2002)
Working Paper: When Does the Market Matter? Stock Prices and the Investment of Equity-Dependent Firms (2002)
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