Purdue`s ISA Fund is available to students who are in the second year or later and who have chosen the main subject they will be studying. These terms were implemented to combat adverse choice, according to Purdues study on negative selection in its ISA program, and also to ensure that students did not have to convert their ISAs when they change the majors. Purdue students cannot borrow more than $33,000 for the duration of their university. The specific conditions offered to students by Purdue University depend on their main subject, which is used to assess future income potential, and the amount they borrow. For example, a Purdue economics student would share 0.34 per cent of his income for the $1,000 he borrowed, and their commitment would take 100 months; an English-language student would share 0.45 per cent of his or her income per US$1,000 for a period of 116 months. The income prospects for a career requiring a degree of English are lower than those of a career that requires an economic degree, and the conditions are therefore different. As of now, there are no documented cases of discrimination on the basis of race or gender with ISA agreements, but some fear that the potential for discrimination will increase if ISA becomes a more popular model.  Although anti-discrimination laws in most financial markets would likely apply to ISA investors, the issue has not yet been fully resolved. Some proponents argue that ISAs are less discriminatory than loans: in the UK, this type of agreement has obtained final approval from the UK Financial Regulator (ACF) within a single legal framework. So far, StepEx is the only company to be a regulated ISA provider and to use funds from major UK financial institutions. ISAs are currently only available in the UK for postgraduate degrees in the professional fields of major universities.
It is a broader and more affordable alternative to debt for the financing of post-graduate students.  However, ISA proponents argue that students are not “included” as students with a student loan, since students are not legally required to work in a particular sector and that it is illegal for investors to push them into a particular career. In fact, someone with a traditional student loan has less choice than someone with an ISA, because the student must be with a loan in a career where he earns at least enough income to cover his monthly payment, while someone with an ISA can choose to never earn money and not owe the investor a penny.   Blair funds your education or cost of living, and after graduation, you will repay a percentage of your income for a period of time.