美国大学毕业生有近半在不要学历的岗位上工作，还得还学费贷款，值吗？

Increasing numbers of recent college graduates are ending up in relatively low-skilled jobs that, historically, have gone to those with lower levels of educational attainment. This study examines this phenomenon in some detail, concluding:

• About 48 percent of employed U.S. college graduates are in jobs that the Bureau of Labor Statistics (BLS) suggests requires less than a four-year college education. Eleven percent of employed college graduates are in occupations requiring more than a high-school diploma but less than a bachelor’s, and 37 percent are in occupations requiring no more than a high-school diploma;
• The proportion of overeducated workers in occupations appears to have grown substantially; in 1970, fewer than one percent of taxi drivers and two percent of firefighters had college degrees, while now more than 15 percent do in both jobs;
• About five million college graduates are in jobs the BLS says require less than a high-school education;
• Comparing average college and high-school earnings is highly misleading as a guide for vocational success, given high college-dropout rates and the fact that overproduction of college graduates lowers recent graduate earnings relative to those graduating earlier;

Political leaders, prominent foundations, and college presidents have argued that the nation must increase the proportion of adults with college degrees in order for America to remain competitive in the global economy.  Supporting those positions, some have issued studies demonstrating that there is a significant earnings premium associated with the possession of a college degree. That is, college graduates tend to earn more in the labor market compared with those with only a high-school education, a differential that is large enough to justify the expenditure of increasingly large sums of money necessary to finance a college degree.  A less optimistic story points out that, while there are undoubtedly many who benefit —even quite substantially economically, from higher education, a not inconsequential number of Americans who obtain higher education do not achieve the economic gains traditionally accompanying the acquisition of college-level credentials.