THE TIMING OF SIGNALING: TO STUDY IN HIGH SCHOOL OR IN COLLEGE?*
用信号理论解释为何东亚学生在高中比大学更努力，而美国学生相反，并用美韩顶尖CEO教育数据验证了东亚高能力者更集中于少数大学的推论。
American students study harder in college than in high school, whereas East Asian students study harder in high school than in college. This article proposes a signaling explanation. Signaling may occur over time both in high school and in college, and societies may differ in the timing of signaling. Students work harder in the signaling stage determined by the society as a whole. A testable implication is that high ability workers in East Asia are more concentrated among a few colleges than their U.S. counterparts. This implication is confirmed by top CEO education profile data in the United States and Korea.