Researchers offered market vendors and bicycle taxi drivers in rural Kenya the opportunity to open a savings account at no cost. The formal savings accounts increased savings, productive investments, and expenditure levels among female micro-entrepreneurs, but not among males.

Researchers measured the impact of different interest rates loan take-up, amount, and repayment rates among female clients of Compartamos Banco in Mexico. Lower interest rates led to an increase in the number of loans issued, loan amounts, and new borrowers but did not increase profits in the short term.