从经济学研究者的角度看,如果没有了消费和投资,经济学将空洞无物,无法开展基本的学理研究。消费(Consumption)和投资(Investment)是宏观经济学的两个重要概念,也经常出现在百姓的日常交流和媒体报道中。然而,经济学对此二者均有着严格的内涵界定,与非专业人士所理解的消费和投资并不完全相同,因此,跨界的对话就有可能出现“鸡同鸭讲”的尴尬局面。笔者撰写本文的一个主要 From an economic researcher’s point of view, without consumption and investment, economics will be empty and impossible to carry out basic academic research. Consumption and investment are two important concepts in macroeconomics, often found in the everyday communication and media coverage of people. However, economics has a strict connotation of both, which is not exactly the same as the consumption and investment understood by non-professionals. Therefore, there is a possibility that cross-boundary dialogues may become embarrassing situation. The author wrote a major article