Tax-adjusted discount rates with investor taxes and risky debt

Cooper, I A and Nyborg, K G (2008) Tax-adjusted discount rates with investor taxes and risky debt. Financial Management, 37 (2). pp. 365-379. ISSN 1755-053X

Abstract

This paper derives a tax-adjusted discount rate formula with a constant proportion leverage policy, investor taxes, and risky debt. The result depends on an assumption about the treatment of tax losses in default. We identify the assumption that justifies the textbook approach of discounting interest tax shields at the cost of debt. We contrast this with an alternative assumption that leads to the Sick (1990) result that these should be discounted at the riskless rate. These two approaches represent polar cases. Each generates its results by using a different simplifying assumption, and we explain what determines the correct treatment in practice. We also discuss implementation of the valuation procedure using the capital asset pricing model.

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Item Type: Article
Subject Areas: Finance
Date Deposited: 16 May 2016 13:25
Last Modified: 24 Aug 2022 00:23
URI: https://lbsresearch.london.edu/id/eprint/227
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