Recent efforts to increase college access and completion concentrate on reducing tuition rates at community colleges, but researchers and policymakers alike have expressed concern that such reductions may not lead to long-term gains in college completion. In this paper, I use detailed data on students' college enrollment and completion outcomes to study how community college tuition rates affect students' outcomes across both public and private colleges. By exploiting spatial variation in tuition rates, I find that reducing tuition at a student's local community college by $1,000 increases enrollment at the college by 3.5 percentage points (18%) and reduces enrollment at non-local community colleges, for-profit institutions, and other private, vocationally-focused colleges, by 1.9 percentage points (15%). This shift in enrollment choices increases students' persistence in college, credit completion, and the probability that they transfer to and earn bachelor's degrees from four-year colleges.

Deciding which field to study is one of the most consequential decisions college students make, but most research on the topic focuses on students attending four-year colleges. To understand how students attending community colleges make field of study decisions, I link administrative educational records of recent high school graduates with local mass layoff and plant closing announcements. I find that declines in local employment deter students from entering closely related community college programs and instead induce them to enroll in other vocationally-oriented programs. I further document that students predominantly shift enrollment between programs that lead to occupations requiring similar skills.

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