In Gothamist article, "Cost of 2nd Avenue Subway extension to East Harlem balloons to $7.7B," Eric Goldwyn and the transit cost project are mentioned:
A study published last month by researchers at NYU’s Marron Institute found the Second Avenue Subway extension is one of the costliest railroad expansion projects per mile in the history of the world.
Eric Goldwyn, who helped lead the study, said “inflation fears could explain the increase” in the project’s price tag.
“Delay is a killer,” said Goldwyn. “I would also guess… that the FTA has identified a risky element, something related to the new tunnel that needs to be built or the challenge of expanding and tying in [the] Second Avenue Subway to the existing station at 125th Street.”