Then you should expect that tax increases do the opposite but that is not necessarily the case, given historical data. It's a conservative talking point, though, by appealing to the debunked Laffer Curve.
Here's a piece from Krugman in 2015 with some historical data for personal income taxes:
>>>And nothing in the experience of the past 35 years has made Lafferism any more credible. Since the 1970s there have been four big changes in the effective tax rate on the top 1 percent: the Reagan cut, the Clinton hike, the Bush cut, and the Obama hike. Republicans are fixated on the boom that followed the 1981 tax cut (which had much more to do with monetary policy, but never mind). But they predicted dire effects from the Clinton hike; instead we had a boom that eclipsed Reagan’s. They predicted wonderful things from the Bush tax cuts; instead we got an unimpressive expansion followed by a devastating crash. And they predicted terrible things from the tax rise after Obama’s reelection; instead we got the best job growth since 1999.
And when I say “they predicted”, I especially mean Laffer himself, who has a truly extraordinary record of being wrong at crucial turning points. As
Bruce Bartlett pointed out a few years ago, Laffer was even wrong during the Reagan years: he predicted that the Reagan tax hikes of 1982, which partially reversed earlier cuts, would cripple the economy; “morning in America” promptly followed. Oh, and let’s not forget his 2009 warnings about soaring interest rates and inflation. ...<<<
Cranks and charlatans rule.
archive.nytimes.com
