Economy: Last year, 18.6% of youth across 34 countries were neither employed nor in school or training programs, according to the Organization for Economic Cooperation and Development's Employment Outlook 2012 report released on Tuesday. In the United States, that percentage was 14.8%.

A lack of jobs for workers ages 15 to 24 could create a "scarring effect" on their long-term career paths and future earnings prospects, the OECD said.

The OECD also predicts the unemployment rate across the United States, Europe, Japan and Mexico will stay above 7.7% by the end of 2013 -- barely better than its current 7.9%.

Currencies and commodities: The dollar rose against the euro and British pound but fell versus the Japanese yen.

Oil for August delivery settled down $2.08 to $83.91 a barrel.

Gold futures for August delivery lost $9.30 to $1,579.80 an ounce.

Bonds: The price on the benchmark 10-year U.S. Treasury fell, pushing the yield up to 1.52% from 1.51% late Monday.