The Dynamics of Technological Unemployment*
比较技术进步对就业的短期和长期影响，通过一个摩擦性失业模型，发现技术进步在长期加速岗位淘汰、降低均衡就业，但短期可能增加就业，部分解释了OECD国家失业率对1970年代生产率放缓的反应。
This article compares the short‐ and long‐run effects of technological progress on employment. It presents a simple model of frictional unemployment capturing the negative creative destruction effects of technological change on employment. In the long run, faster technological change accelerates job obsolescence, which reduces the equilibrium level of employment. But it is also shown to have short‐run positive and potentially important effects on employment. This tends to partially reconcile the ‘‘Schumpeterian'’ view of the effects of technological change on labor markets with facts such as the response of most OECD unemployment rates to the 1970s productivity slowdown.