By the 1950s, poor farming techniques and the loss of jobs to mechanization in the mining industry had left much of central and southern Appalachia poverty-stricken. The lack of jobs also led to widespread difficulties with outmigration. Beginning in the 1930s, federal agencies such as the Tennessee Valley Authority began investing in the Appalachian region. Sociologists such as James Brown and Cratis Williams and authors such as Harry Caudill and Michael Harrington brought attention to the region's plight in the 1960s, prompting Congress to create the Appalachian Regional Commission in 1965. The commission's efforts helped to stem the tide of outmigration and diversify the region's economies. Although there have been drastic improvements in the region's economic conditions since the commission's founding, the ARC still listed 80 counties as "distressed" in 2020, with nearly half of them (38) in Kentucky.