WASHINGTON (AP) — In an increasingly global economy, just 1 in 10 teenagers around the world is able to make some key — but complex — financial decisions, including choosing among various loans or analyzing invoices and pay slips.

The picture is no better in the United States, where only 9.4 percent of 15-year-olds were able to answer the most difficult questions on an international test of their financial knowledge and skills. More than 1 in 6 U.S. students did not reach the baseline level of proficiency in financial literacy. At best, those students could make only simple decisions on everyday spending, said a report released Wednesday by the Paris-based Organization for Economic Cooperation and Development.