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An analytical model of required returns to equity under taxation with imperfect loss offset

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Lund (2002a) showed in a CAPM-type model how tax depreciation schedules affect required expected returns after taxes. Even without leverage higher tax rates implied lower betas when tax deductions were risk free. Here they are risky, and marginal investment is taxed together with inframarginal in an analytical model of decreasing returns. With imperfect loss offset tax claims are analogous to call options. The beta of equity is still decreasing in the tax rate, but increasing in the underlying volatility. The results are important if market data are used to infer required expected returns, and in discussions of tax design.

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  • Lund, Diderik, 2005. "An analytical model of required returns to equity under taxation with imperfect loss offset," Memorandum 13/2005, Oslo University, Department of Economics.
    • Handle: RePEc:hhs:osloec:2005_013
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    Cited by:

    1. Lund, Diderik, 2009. "Marginal versus Average Beta of Equity under Corporate Taxation," Memorandum 12/2009, Oslo University, Department of Economics.

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    More about this item

    Keywords

    Corporate tax; depreciation; imperfect loss offset; cost of capital; uncertainty;
    All these keywords.

    JEL classification:

    • F23 - International Economics - - International Factor Movements and International Business - - - Multinational Firms; International Business
    • G31 - Financial Economics - - Corporate Finance and Governance - - - Capital Budgeting; Fixed Investment and Inventory Studies
    • H25 - Public Economics - - Taxation, Subsidies, and Revenue - - - Business Taxes and Subsidies

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