This paper compares employment and hours adjustment in Japanese and U.S. manufacturing. In contrast to some previous work, we find that adjustment of total labor input to demand changes is significantly greater in the United States than in Japan; adjustment of employment is significantly greater in the United States, while that of average hours is about the same in the two countries. Although workers in Japan enjoy greater employment stability than do U.S. workers, we find considerable variability in the adjustment patterns across groups within each country.