Marginal versus Average Beta of Equity under Corporate Taxation
Even for fully equity-financed firms there may be substantial effects of taxation on the after-tax cost of capital. Among the few studies of these effects, even fewer identify all effects correctly. When marginal investment is taxed together with inframarginal, marginal beta differs from average if there are investmentrelated deductions like depreciation. To calculate asset betas, one should not only "unlever" observed equity betas, but "untax" and "unaverage" them. Risky tax claims are valued as call options, with closed-form solutions for the exercise probability. Results have practical relevance for multinationals operating under different tax systems.
|Date of creation:||09 Jun 2009|
|Date of revision:|
|Publication status:||Published as Lund, Diderik, 'How taxes on firms reduce the risk of after-tax cash flows' in FinanzArchiv/Public Finance Analysis, 2014, pages 567-598.|
|Contact details of provider:|| Postal: Department of Economics, University of Oslo, P.O Box 1095 Blindern, N-0317 Oslo, Norway|
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