Republicans urged western farmers and northern manufacturers to blame the depression on the domination of the low-tariff economic policies of southern-controlled Democratic administrations. However, the depression revived suspicion of Northeastern banking interests in both the South and the West. Eastern demand for western farm products shifted the West closer to the North. As the "transportation revolution" (canals and railroads) went forward, an increasingly large share and absolute amount of wheat, corn, and other staples of western producersonce difficult to haul across the Appalachianswent to markets in the Northeast. The depression emphasized the value of the western markets for eastern goods and homesteaders who would furnish markets and respectable profits.