Although Co-operative Banks - formerly known as Peoples' Credit Funds - and other private financial institutions have been established, so far they have not achieved significant importance in rural finance. Such concentration may explain the limited access to formal banking services in rural areas and high interest rates. The lack of sufficient collateral also limits access to credit by small-scale farmers. As a result, half of rural households were still unable to access banking services in 2010 and the informal sector remains an important source of rural credit.