The Chairwoman of President Obama’s Council of Economic Advisers and Christina D. Romer and economics Professor David H. Romer of the UC-Berkeley published The Macroeconomic Effects of Tax Changes: Estimates Based on a New Measure of Fiscal Shocks, 100 Am. Econ. Rev. 763 (2010). Here is the abstract:

“This paper investigates the impact of tax changes on economic activity. We use the narrative record, such as presidential speeches and Congressional reports, to identify the size, timing, and principal motivation for all major postwar tax policy actions. This analysis allows us to separate legislated changes into those taken for reasons related to prospective economic conditions and those taken for more exogenous reasons. The behavior of output following these more exogenous changes indicates that tax increases are highly contractionary. The effects are strongly significant, highly robust, and much larger than those obtained using broader measures of tax changes.”

Our estimates suggest that a tax increase of 1 percent of GDP reduces output over the next three years by nearly three percent.”