References (103)



Policy Uncertainty and Optimal Taxation

Chris William Sanchirico

University of Pennsylvania Law School; University of Pennsylvania Wharton School - Business Economics and Public Policy Department

October 10, 2010

U of Penn, Inst for Law & Econ Research Paper No. 10-23

A kind of folk theorem in tax policy states that too much uncertainty about the impact of taxing (or subsidizing) a particular taxable attribute is cause for excluding that attribute from the tax base. I extend the optimal tax model to test this hypothesis. In my model, the government is not only unable to observe the underlying characteristics of any given taxpayer - as per the usual model - it is also uncertain regarding the population distribution of such characteristics. I study how optimal taxation is affected by a mean-preserving spread of the government’s beliefs with regard to potentially taxable attributes holding constant government beliefs with regard to already taxed attributes. I find that such additional uncertainty is as likely to increase as to decrease both the impetus for including potentially taxable attributes in the tax base and the intensity at which such attributes are optimally taxed if included. I highlight the decisive role of correlation across the components of the additional uncertainty regarding potentially taxable attributes. I connect this uncertainty covariance to the population covariance often found in optimal tax formulae following Diamond (1975).

Number of Pages in PDF File: 37

Keywords: Policy uncertainty, optimal taxation, optimal redistribution, optimal policy, taxes versus legal rules, capital earnings taxation, consumption taxation, inheritance taxation, income taxation

JEL Classification: H2, H21, H22, H23, H4, K00, K1, K34

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Date posted: October 11, 2010 ; Last revised: October 23, 2011

Suggested Citation

Sanchirico, Chris William, Policy Uncertainty and Optimal Taxation (October 10, 2010). U of Penn, Inst for Law & Econ Research Paper No. 10-23. Available at SSRN: http://ssrn.com/abstract=1690257 or http://dx.doi.org/10.2139/ssrn.1690257

Contact Information

Chris William Sanchirico (Contact Author)
University of Pennsylvania Law School ( email )
3501 Sansom Street
Philadelphia, PA 19104
United States
215-898-4220 (Phone)
HOME PAGE: http://www.law.upenn.edu/faculty/csanchir/
University of Pennsylvania Wharton School - Business Economics and Public Policy Department
3641 Locust Walk
Philadelphia, PA 19104-6372
United States

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