Résultat de recherche d'images pour By Alex Usher. If you pay attention to student assistance, you know about income-contingent loans.  And if you’ve heard about income-contingent loans, you probably know that the first national scheme debuted in Australia back in the late 1980s.  You might even know that the first theoretical exploration of income-contingent loans was made by Milton Friedman back in the 1950s (actually, he was talking more about human-capital contracts, but close enough. More...