The federal government has assumed a permanent, strong role in the economy, contributing to its stability and efficiency, since the

The answer is during the "1930s". During the 1930s, the federal government has anticipated a permanent, resilient part in the economy, backing to its firmness and effectiveness. In the 1930s, America experienced the phenomenon known as the "Great Depression", wherein it was considered to be the extreme economic catastrophe in the nation-state’s whole history. Because of this catastrophe, it stretched out the governing influence of the federal government and the administration’s part in the economy, which resulted into a more firm and effective economy, till this present time.