Likewise, development economists need better diagnostic skills to recognize that economic pathologies have a wide variety of causes, including many outside the traditional ken of economic practice.

• 同样的，发展经济学也需要研究出更好的诊断技巧，能够体认到经济问题其实有各种不同的原因，许多原因甚至超越了传统经济学的范畴。