The Value of Tax Shields is Not Equal to the Present Value of Tax Shields: A Correction
University of Navarra - IESE Business School
January 19, 2005
I correct some expressions of Fernandez (2004) and provide a more general expression for the value of tax shields. This expression is the difference between the present values of two different cash flows, each with its own risk: The present value of taxes for the unlevered company and the present value of taxes for the levered company. The value of tax shields in a world with no leverage cost is the tax rate times the current debt, plus the tax rate times the present value of the net increases of debt. The value of tax shields depends only on the nature of the stochastic process of the net increase of debt; it does not depend on the nature of the stochastic process of the free cash flow.
Number of Pages in PDF File: 8
Keywords: Value of tax shields, present value of the net increases of debt, required return to equity
JEL Classification: G12, G31, G32working papers series
Date posted: February 3, 2005
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