just prior to the Wall Street Crash of 1929, claiming that the stock market had reached "a permanently high plateau". His subsequent theory of debt deflation as an explanation of the Great Depression, as well as his advocacy of full-reserve banking and alternative currencies, were largely ignored in favor of the work of John Maynard Keynes.[3] Fisher's reputation has since recovered in neoclassical economics, particularly after his work was rediscovered in the late 1950s,[3][8][9] and more widely due to an increased interest in debt deflation after the late-2000s recession.[10]