Herbert Hoover initially believed the government should not interfere with the business cycle, but later adopted a policy of volunteerism that failed to alleviate the Depression. This involved asking businesses not to cut wages or prices, and for tax cuts, interest rate reductions, and public works projects. However, businesses continued to lay off workers as towns and states lacked resources. Hoover then tried trickle-down economics through loans to banks to lend to businesses, but businesses did not always use loans to hire workers. Construction of Hoover Dam provided jobs in the Southwest. Growing unhappy with Hoover's response, unemployed World War I veterans marched in protest but riots led to the army attacking the protesters, further angering Americans and dooming Hoover's reelection chances.