New Technologies, Wages, and Worker Selection
利用匹配个人和企业的独特面板数据，研究新技术对工资和就业的影响，发现计算机使用者工资更高，但这一优势在引入新技术前就已存在，净回报仅2%。
The authors study the effect of new technologies on wages and employment using a unique panel that matches data on individuals and on their firms. As in the United States, they show that computer users are better paid than nonusers (15-20 percent more). But these workers were already better compensated before the introduction of the new technologies. Total returns to computer use amount to 2 percent. Measurement errors do not affect the authors' estimates. Furthermore, computer users are protected from job losses as long as bad business conditions do not last too long. This result holds even after controlling for possible selection biases. Copyright 1999 by University of Chicago Press.