third, or intensive margin,' combines the increasing self-segregation (on the basis of aptitude) of students among colleges …

reductions in class size from a base of 15 to 30 students have no effect on student achievement. The estimates are precise enough … the presence of black students in a class, in an of itself, has no effect on achievement. I demonstrate that estimates of …

We show that the vast majority of very high-achieving students who are low-income do not apply to any selective college …, high-achieving, low-income students who do apply to selective institutions are admitted and graduate at high rates. We … demonstrate that these low-income students' application behavior differs greatly from that of their high-income counterparts who …

now than they were then. This paper demonstrates that competition for space--the number of students who wish to attend … to its resources and peers. In other words, students used to attend a local college regardless of their abilities and its … consequent re-sorting of students among colleges that has, at once, caused selectivity to rise in a small number of colleges …

-based aid is simply redistribution or a method of internalizing externalities among students. Many students would like colleges … would not qualify based on need. Yet, the same students might prefer a regime of need-based aid, knowing that it would apply …

students respond to their menus' like rational human capital investors. Whether they make the investments efficiently is … aptitude students respond to aid in a way that apparently reduces their lifetime present value. While both a lack of … sophistication/information and credit constraints can explain the behavior of this 30 percent of students, the weight of the evidence …

Previous work (Hoxby and Avery 2014) shows that low-income higher achievers tend not to apply to selective colleges … trial that provides such students with individualized information about the college application process and colleges' net … prices. In other work (Hoxby and Turner 2013), we show that the informational intervention substantially raises students …