claim: "i believe in tax cuts. i believe in being a supply-sider. i cut the income tax i think it was 24 percent. we got 42 percent more revenues."
author: rudy giuliani
evidence_1: before the tax cuts, the highest marginal income tax rate was 39.6 percent. after  the cuts, the highest rate was 35 percent. once the cuts were eliminated for high  income levels (single people making $400,000+ per year and couples making  $450,000+ per year), the top income tax rate returned to 39.6 percent.
evidence_2: these empirical findings carry an important lesson for our tax policy: rather than  increasing inequality by throwing away revenue on tax cuts for the rich, we ... on  this story, supply-siders believe tax cuts will provide a bigger economic boost if  they're directed at rich people, as opposed to middle- and lower-income people.
evidence_3: in economics, the laffer curve illustrates a theoretical relationship between rates  of taxation and the resulting levels of government revenue. it illustrates the  concept of taxable income elasticity—i.e., taxable income changes in response to  changes in the rate of taxation. the laffer curve assumes that no tax revenue is  raised ...
evidence_4: jul 29, 1991 ... william niskanen, chairman, cato institute: good morning, friends,  and welcome to a cato institute debate on "reagan's supply side tax cuts ...  the tax cuts consisted, most importantly but by no means entirely, of a 25 percent  cut in federal income tax rates -- 5 percent that went into effect in ...
evidence_5: some hold this was borne out during the 1980s when advocates of supply-side  economics claim tax cuts ultimately led to an overall increase in government  revenue due to stronger economic growth. however, some economists dispute  this assertion, pointing to the fact that revenue as a percentage of gdp declined  during ...