Mitt Romney Tax Policy Studies: Candidate Seemingly Contradicts Their Conclusions WASHINGTON -- Over the past few weeks, the Romney campaign has repeatedly pointed to five separate studies supporting the candidate's contention that a dramatic, across-the-board, reduction in tax rates can be paid for by economic growth and the elimination of deductions and exemptions for high-income earners. Romney himself referenced these five studies in an interview with Meet the Press on Sunday. His running mate, Rep. Paul Ryan (R-Wis.), said the same during his run through the Sunday show circuit. A closer examination, however, calls into question the fact that there are even five studies at all. Last week, the Romney campaign passed along the five documents that the candidate had referenced on NBC's Meet the Press. Three of the five are blog posts or op-eds (as opposed to academic literature), and two of those three are written by the same author: Harvard economist Martin Feldstein. Of the remaining two studies, one is the tax reform white paper authored by Romney-backing economists and paid for by Romney for President, Inc. (in an email to PolitiFact, the Romney campaign highlighted several Wall Street Journal editorials in place of the campaign white paper as the "fifth" study). The final study, produced by Princeton University's Harvey Rosen, backs the Romney campaign's assertions by arguing that people will work more, accumulate more income, pay more taxes, and seek out fewer loopholes if their tax rates are lowered. But even that report has several nuances that complicate the candidate's use of it.