Columbia subject headings:
Education, Higher--United States--Costs.
Education, Higher--United States--Evaluation--Mathematical models.
Education, Higher--United States--Evaluation.
Harvard subject headings:
Education, Higher--United States--Costs
Education, Higher--United States--Evaluation
Education, Higher--United States--Evaluation--Mathematical models.
Princeton subject headings:
Education, Higher--Prices--United States--Econometric models.
Quality of products--United States--Econometric models.