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Journal of Financial Economics Vol. 83 No. 3 2007

Testing Q theory with financing frictions

Christopher A. Hennessy1; Amnon Levy2; Toni M. Whited3

1 University of California, Berkeley · 2 Moody's Corporation (United States) · 3 University of Wisconsin–Madison

Abstract

We develop a Q theory of investment under financing constraints. The firm invests and saves optimally facing convex costs of external equity, overhang from outstanding debt, and collateral constraints on new borrowing. Overhang and costs of external equity discourage investment. Conversely, firms anticipating collateral constraints experience a side benefit from investing as installed capital relaxes future constraints. Empirical tests support the model. Conditional on average Q, investment is lower for equity issuers and for firms with large debt overhang. The Kaplan and Zingales and the Whited and Wu indices are used as proxies for future collateral constraints. Consistent with the model, both indices enter investment regressions positively.

DOI
10.1016/j.jfineco.2005.12.008
Volume
83
Issue
3
Pages
691-717
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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