The federal government has been involved in providing housing assistance to lower-income households since the 1930s. In the beginning, the federal government was involved in supporting the mortgage market (through establishment of the Federal Housing Administration (FHA) and the government-sponsored enterprises) and in promoting construction of low-rent public housing for lower-income families through local public housing authorities (PHAs). Over time, the role of the federal government has shifted away from providing construction-based subsidies to providing rental subsidies; private developers and property owners now play a larger role; and more federal funding has been provided to states and localities.