In which decade of the 20th century did the government begin to take a much larger role in the u. s economy

In 1930s of the 20th century did the government begin to take a much larger role in the u.s economy

Here is the answer to the given question above. The decade of the 20th century that the government began to take a much larger role in the U.S economy was  in the 1930s and to some extent the 1940s, primarily through Roosevelt's New Deal programs. Hope this answers your question.