求助：教育经济学文献两篇（100币）
1、Trends in undergraduate economics degrees, 1991-2008
作者：Siegfried, John J.

Article from: The Journal of Economic Education

Article date: June 22, 2009

2、Trends in U.S. economics majors: Why the decline in the 1990s?
作者：
Skoorka, Bruce M.; Condon, Carol M.

Artical from: Atlantic Economic Journal
June 01, 2003