A farmer protesting falling prices dumps cauliflower in front of the prefecture building of Saint-Brieuc in northwestern France as police look on Sept. 24. Fred Tanneau/AFP/Getty Images hide caption

itoggle caption Fred Tanneau/AFP/Getty Images

Monument to headier times: The euro logo outside the European Central Bank in Frankfurt. The International Monetary Fund has warned of possible deflation in parts of Europe. Frank Rumpenhorst/AFP/Getty Images hide caption

itoggle caption Frank Rumpenhorst/AFP/Getty Images