Carl S. Shoup, a U.S. scholar who laid the foundation of Japan's postwar tax system, died in New Hampshire of unknown causes last Thursday, (March 23) the Finance Ministry said Tuesday. He was 97.

A memorial service for Shoup, a former economics professor at Columbia University, will be held in Center Sandwich, New Hampshire, on May 7, the ministry said.

"We owe the modernization of our tax system and the reconstruction and development of our economy in the postwar era to Dr. Shoup. We offer our heartfelt condolences," the ministry said in a statement.