Moreover, due to hasty and poorly supervised implementation, waste in infrastructure construction can be serious. With an investment rate of 50% and a GDP growth rate of 8%, the incremental capital-output ratio could be higher than six, compared to 4.1 in 1991-2003, implying not only low efficiency, but also the possibility of a significant increase in nonperforming loans.
此外，由于操之过急而且缺乏有效监控的政策执行，在基础设施投资建设上的浪费现象将十分严重。当投资比率达到 50% 以及 GDP 增长率达到 8% 的时候，持续增长的资本产出比率将超过 6 ，而 1991-2003 年期间这个数字还只是 4.1 ，意味着不但投资效率低下，而且很可能出现大量的不良贷款。