[영문]This paper uses data from San Francisco probate records and cross?year variation in tax rates to estimate the effect of the estate tax on charitable bequests. Identification of the tax price does not require strong assumptions about the marital deduction or functional form, both of which can bias the price elasticity estimate. Estate and inheritance taxes are found to be significantly related to charitable bequests for both filers and non?filers of the federal estate tax return. These results hold whether the tax price is based on the date?of?will tax schedule, the date?of?death tax schedule, or expectations about future tax rates.