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Taxation and systematic risk under decreasing returns to scale

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  • Lund, Diderik

    (Department of Economics, Copenhagen Business School)

Abstract

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.

Suggested Citation

  • Lund, Diderik, 2006. "Taxation and systematic risk under decreasing returns to scale," Working Papers 02-2003, Copenhagen Business School, Department of Economics.
    • Handle: RePEc:hhs:cbsnow:2003_002
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    References listed on IDEAS

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    1. Lund, Diderik, 2006. "Valuation, leverage and the cost of capital in the case of depreciable assets," Working Papers 03-2003, Copenhagen Business School, Department of Economics.
    2. Myers, Stewart C, 1974. "Interactions of Corporate Financing and Investment Decisions-Implications for Capital Budgeting," Journal of Finance, American Finance Association, vol. 29(1), pages 1-25, March.
    3. Benninga, Simon & Sarig, Oded, 2003. "Risk, returns, and values in the presence of differential taxation," Journal of Banking & Finance, Elsevier, vol. 27(6), pages 1123-1138, June.
    4. Lund,D., 2001. "Taxation, uncertainty, and the cost of equity for a multinational firm," Memorandum 13/2001, Oslo University, Department of Economics.
    5. Diderik Lund, 2002. "Petroleum Tax Reform Proposals in Norway and Denmark," The Energy Journal, , vol. 23(4), pages 37-56, October.
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    Cited by:

    1. Lund, Diderik, 2006. "Valuation, leverage and the cost of capital in the case of depreciable assets," Working Papers 03-2003, Copenhagen Business School, Department of Economics.
    2. Lund, Diderik, 2009. "Marginal versus Average Beta of Equity under Corporate Taxation," Memorandum 12/2009, Oslo University, Department of Economics.
    3. 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.

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    More about this item

    Keywords

    Corporate tax; depreciation; imperfect loss offset; decreasing returns; 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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