Mr Lall of the IMF and his co-authors have tried to show this empirically by looking at the industries that contributed the most to world growth from 1980 to 2001.

• 通过调查1980年到2001年为世界经济增长做出最大贡献的产业，IMF的拉尔和他的合著者凭借经验努力揭示这一点。