Why an increase in college applications?!

Not many colleges release detailed information about their entire applicant pool this early in the year, but I have found Yale to be particularly transparent about the admissions process and its applicant pool. A few days ago, there was a Yale Daily News article that shared the data on the Class of 2022 applicant pool: https://yaledailynews.com/blog/2018/01/30/yale-receives-record-number-of-apps/

A few pertinent excerpts from the article:

I found this article to be interesting, because I always wondered if it was the international pool that was driving the increase in applications. According to this article, for Yale it could be the “groups that the admissions office specifically tracks” that are driving the increase: U.S. citizens and permanent residents who identify as a member of a minority racial or ethnic group (up 40%), first generation college students (up 37%), domestic students living in lower-income census tracts (up 113%).