KNOWLEDGE AND EARNINGS
研究了美国工人对多种学科的知识掌握程度如何影响其工资，发现医学、工程等知识有正向作用，而食品生产、人力资源知识则无市场回报，且大城市高知识职业的集聚会产生溢出效应。
ABSTRACT This paper examines the effects of knowledge about a wide variety of subjects on the wages and salaries of U.S. workers. Knowing a lot about topics such as medicine and dentistry, engineering and technology, and production and processing has a positive effect on individual earnings, whereas high knowledge in the areas of food production and personnel and human resources is not rewarded in the labor market. Spillover effects, where the share of metropolitan area employment in high‐knowledge occupations enhances earnings, were uncovered primarily in subjects related to producer services and information technology.