the subprime must form seven - member groups that , also with the bank ' s field workers , closely supervise the mortgage . peer pressure substitutes for collateral because the team ' s first two borrowers have to finish repaying the title plus amount over a 6 - week intervals before the other members can take out credit . the maturity rate is fixed at 16 dollars .
The first two borrowers must start repaying the principal plus interest over a six-week period.