Monopsony Power in Higher Education: A Tale of Two Tracks
利用学校层面的劳动力需求工具变量，直接估计美国高校面临的剩余劳动力供给曲线，发现高校对终身轨教师有显著买方垄断力量，但对非终身轨教师面临完全弹性供给曲线，并探讨了垄断来源及其对非终身轨教师雇佣趋势的影响。
This paper measures the degree of monopsony power in the US higher-education labor market by using school-specific labor demand instruments to directly estimate the residual labor supply curves facing individual universities. The results indicate that schools have significant monopsony power over tenure-track faculty but face perfectly elastic residual labor supply curves for non-tenure-track faculty. There is some evidence for three sources of monopsony power often discussed in the literature—employer concentration, search frictions/job-switching costs, and differentiated jobs. The results also suggest that monopsony over tenure-track faculty may have contributed to the trend toward hiring more non-tenure-track faculty.