As a nonspecialist in this field, I'm wondering if anyone can explain the information presented in section starting on p.2, From The Countries Viewpoint of this source EllenCT posted. 
Although the source is arguing for more funding for vocational programs as opposed to liberal arts in light of much greater overall ROI, in order to make its case it presents ROI stats for both, and to a novice like me it seems that the stats may support the statement pertaining to ROI from subsidies in terms of tax receipts. 
In short, the table shows an ROI of 30%/yr ("BA in English"), and though I'm not exactly sure how that translates, given the inclusion of "incremental jobs" and "incremental income", etc., it does seem to represent some correlation between the subsidies and tax returns. It includes the statementBecause we are looking at the investment and return from the country’s viewpoint, all incomes are calculated at gross income, including the taxes, which flow to the government. 連絡 見学/迷惑