New information and communication technologies, we argue, have been 'power-biased': they have allowed firms to monitor low-skill workers more closely, thus reducing the power of these workers. An efficiency wage model shows that 'power-biased technical change' in this sense may generate rising...

US earnings inequality has increased dramatically since the 1970s, and the prospect of a reversal depends on what caused the trend. The standard explanation emphasizes skill-biased technical change. This paper briefly considers some aggregation issues and then proceeds to outline two alternative...