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Tax Rates and Corporate Decision MakingJohn R. GrahamDuke University; National Bureau of Economic Research (NBER) Michelle HanlonMassachusetts Institute of Technology (MIT) - Sloan School of Management Terry J. ShevlinUniversity of California-Irvine Nemit ShroffMassachusetts Institute of Technology (MIT) - Sloan School of Management January 20, 2017 Review of Financial Studies, Forthcoming Abstract: We survey companies and find that many use incorrect tax rate inputs into important corporate decisions. Specifically, many companies use an average tax rate (the GAAP effective tax rate, ETR) to evaluate incremental decisions, rather than using the theoretically correct marginal tax rate. We find evidence consistent with behavioral biases (heuristics, salience) and managers’ educational backgrounds affecting these choices. We estimate the economic consequences of using the theoretically incorrect tax rate and find that using the ETR for capital structure decisions leads to suboptimal leverage choices and using the ETR in investment decisions makes firms less responsive to investment opportunities.
Number of Pages in PDF File: 85 Keywords: Tax rates, marginal tax rate, effective tax rate, investment, capital structure, behavioral biases, salience, heuristics Date posted: January 13, 2015 ; Last revised: January 21, 2017Suggested CitationContact Information
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