I was with you up until the very end.  Pay N times more for tuition, expect to earn N times more _on_your_degree_investment_ in the long run.<p>That doesn&#x27;t mean your entire income will be N times higher.<p>For example if you spent $100k on your tuition in year 0, and the rate of return from that degree is 10% per year, and assuming you spend the returns rather than reinvest them, then your degree is adding $10k&#x2F;year to your income.<p>But you&#x27;re not living on $10k&#x2F;year, you&#x27;re earning $80k&#x2F;year, $10k of which is attributable to your degree.<p>So to complete the exericse, if you had spent 2x on your education, you would be making $90k&#x2F;year.  Not $160k.