世界银行的加尼（Ejaz Ghani）和奥康奈尔（Stephen D. O’Connell）相当乐观，在最新论文中，他们指出服务业可以成为增长的自动扶梯，而在传统上，扮演这一角色的是制造业。
Among the optimists are Ejaz Ghani and Stephen D. O’Connell of the World Bank. In a recent paper, they argue that service industries could serve as a growth escalator, the role traditionally assumed by manufacturing.