TaxProf Blog

Editor: Paul L. Caron, Dean
Pepperdine University School of Law

Thursday, March 20, 2014

Clausing Presents Lessons for International Tax Reform from Formulary Apportionment Today at UCLA

ClausingKim Clausing (Reed College) presents Lessons for International Tax Reform from the U.S. State Experience under Formulary Apportionment at UCLA today as part of its Tax Policy and Public Finance Colloquium Series hosted by Jason Oh, Kirk Stark, and Alexander Wu:

This work undertakes a comprehensive analysis of the U.S. state experience under formulary apportionment of corporate income. While formulary apportionment eliminates the possibility of shifting income across states through accounting strategies that manipulate where income is booked, it may heighten the tax responsiveness of formula factors. The present analysis uses the substantial variation in corporate tax policy decisions of U.S. states over the period 1986 to 2012 to better understand the consequences of formulary apportionment. It examines the effects of policy choices regarding tax rates, formula weights, and other parameters on economic activity, estimating the tax sensitivity of employment, investment, and sales. With the inclusion of adequate control variables, results indicate that economic activity is not particularly sensitive to U.S. state corporate tax policy choices, especially in recent years. Still, tax policy choices have important effects on corporate tax revenues. These results suggest important lessons regarding possible international adoption of formulary apportionment.

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