“The Washington-based lender sees the world economy expanding 3.2 percent this year, compared with a June projection of 3 percent and up from 2.4 percent in 2013. The forecast for the richest nations was raised to 2.2 percent from 2 percent. Part of the increase reflects improvement in the 18-country euro area, with the U.S. ahead of developed peers, growing twice as fast as Japan.”