A recent New York Times article reported on some U.S. businesses that are getting increasing investment in light of the Trump Administration's deregulatory efforts. Although the claims are broad, the article specifically mentions the rollback of Obama-era regulations on the coal industry as an example.
Economist Paul Krugman--whose own column is carried by the NYT--was aghast. On Twitter, Krugman linked to the article and claimed that "There is no evidence--none--that regulation actually deters investment." He then went on to argue the exact opposite, namely that climate change regulations in particular would promote business investment (in renewables and conservation projects).