In 1967 legislation enabled foreign private investors to become partners with Yugoslav enterprises in joint ventures with up to 49% of capital, despite the fact that such arrangement would be classified as exploitation in Marxist theory. German companies were especially interested in such arrangements and they represented around the quarter of foreign investments. However, many foreign companies were disappointed by the poor efficiency and organization of Yugoslav enterprises; in one case, Japanese representatives concluded that they would consider investment only if half of the workers were fired.