The Importance of Measurement Error in the Cost of Capital
NBER Working Paper No. 7558
Conventional estimates of the impact of taxes on investment may be seriously biased by measurement error in the cost of capital. The existence and size of such error, however, has not been documented. Using panel data on different types of capital equipment, this paper provides direct evidence of measurement error in the tax component of the cost of capital, accounting for about 20 percent of the tax term's variance. Correcting for the error with IV estimation shows that taxes significantly affect both prices and investment and that conventional results may be off by as much as a factor of four.
Document Object Identifier (DOI): 10.3386/w7558
Published: Goolsbee, Austan. "The Importance Of Measurement Error In The Cost Of Capital," National Tax Journal, 2000, v53(2,Jun), 215-228.
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