Original sentence: In a 1992 article for the Harvard International Review James Tobin wrote, "[The] idea that tax cuts would actually increase revenues turned out to deserve the ridicule..."  But while few modern economists claim that tax cuts will completely pay for themselves, some empirical and theoretical research suggests that tax cuts do help to pay for themselves through increased economic growth
Edited sentence: In a 1992 article for the Harvard International Review James Tobin wrote, "[The] idea that tax cuts would actually increase revenues turned out to deserve the ridicule..."  But while few modern economists claim that tax cuts will completely pay for themselves, more modern research, both empirical and theoretical, shows that tax cuts do help to pay for themselves through increased economic growth