Profile of Paul Romer, once tech's favorite economist and now a critic, who has championed state taxes on the digital ads sold by Facebook and Google (Steve Lohr/New York Times)

Steve Lohr / New York Times:
Profile of Paul Romer, once tech's favorite economist and now a critic, who has championed state taxes on the digital ads sold by Facebook and Google  —  Paul Romer's call for government activism, particularly toward the big tech companies, reflects “a profound change in my thinking.”