Long Depression
Nobel laureate economist Milton Friedman, author of "A Monetary History of the United States", on the other hand, blamed this prolonged economic crisis on the imposition of a new gold standard, part of which he referred to by its traditional name, The Crime of 1873. This forced shift into a currency whose supply was limited by nature, unable to expand with demand, caused a series of economic and monetary contractions that plagued the entire period of the Long Depression. Murray Rothbard, in his book "History of Money and Banking of the United States", argues that the long depression was only a misunderstood recession since real wages and production were actually increasing throughout the period. Like Friedman, he attributes falling prices to the resumption of a deflationary gold standard in the U.S. after the Civil War.
Joseph Stiglitz
Contrary to most economists historians, who argue that tariffs have played only a minor role or not at all in the Great Depression, Stiglitz thinks that the United States should not protect its economy because tariffs contributed to the Great Depression: "Following that, U.S. exports fell by some 50 percent—contributing to our Great Depression".