He was noted for his criticism of Japan's expansionist policies. As a result, Yanaihara was forced to resign from teaching under pressure by right-wing scholars in 1937. Yanaihara resumed his teaching after the war and taught international economics at the University of Tokyo.
Yanaihara was noted for his opposition to Japan's aggressive policies. As a consequence, he had to resign from teaching under pressure from right-wing scholars in 1937. Yanaihara resumed his teaching after the war and taught international economics at the University of Tokyo.