本文认为,李嘉图《原理》的第31章“论机器”中的分析是基于长周期方法。因此,李嘉图关于在特定的条件下引进机器可能导致技术性失业的发现应适用于经济系统的长周期状态。对克努特·维克赛尔和弗里德里希·哈耶克提出的和李嘉图不同看法的讨论显示,李嘉图的观点与新古典主义长周期理论的不相容被误认为是它和长周期分析方法的不相容。 This paper argues that the analysis in Ricardo’s Principles of Chapter 31, “The Machine,” is based on the long-period method. Therefore, Ricardo’s findings that the introduction of machinery under certain conditions may lead to technical unemployment should apply to the long-term state of the economic system. The discussion of the differences between Ricardo and Knight Ricardo Hayek and Ricardo shows that the incompatibility between Ricardo’s ideas and the neoclassical theory of long cycles is mistakenly thought to be due to its long cycle Analytical incompatibility.