Discredited with the rise of Liberalism in the nineteenth century. Realism reetmerged as an important perspective only in the aftermath of the Great Depression of the 1930s as scholars sought to understand the causes of the widespread economic war- fare of"beggar-thy-neighbor" policies initiated in 1929. Realists believe that nation-states pursue power and shape the economy to this end. Unlike Liberals and Marxists. Realists perceive politics as determining economics