Marvin Goodfriend, a leading conservative monetary economist and former nominee to the Federal Reserve Board, died on Thursday at his home in Pittsburgh. He was 69.

The cause was cancer, said Mara McFalls Falk, a spokeswoman for Carnegie Mellon University, where Professor Goodfriend taught economics. She said the cancer had recurred after being successfully treated in 2017.

Professor Goodfriend was an expert on central banking and monetary economics and had often been critical of the Fed’s actions since the 2008 financial crisis. President Trump nominated him to the Fed’s Board of Governors in November 2017, but his nomination failed to win support among Democrats. And when Senator Rand Paul, a Kentucky Republican who is a longtime Fed critic, said he would not support Professor Goodfriend, the nomination was put on shaky ground. It eventually lapsed without a full Senate vote.

“I think it’s very sad that he was a victim of the political discord in Washington,” said Mark Gertler, an economist at New York University.