 During World War I, Wallace and his father helped the United States Food Administration (USFA) to develop policies to increase hog production.After USFA director Herbert Hoover abandoned the hog production policies favored by the Wallaces, the elder Wallace joined an effort to deny Hoover the presidential nomination at the 1920 Republican National Convention.Partly as a response to Hoover, Wallace published "Agricultural Prices", in which he advocated government policies to control agricultural prices.