Worldwide insurance premium volume increased by 1.4 percent in 2013 to $4.641 trillion, according to a study published today by Swiss Re Ltd., Business Insurance reported.  In the United States, however, overall premium volume fell by 2.5 percent in 2013 compared with 2012 to $1.259 trillion, according to theSwiss Re sigma study, "World Insurance in 2013: Steering Towards Recovery." Life insurance premium volume in the United States fell by 7.7 percent in 2013 from 2012, in large part because of the nonrecurrence of several large corporate deals that boosted group annuity business in 2012, according to the study. U.S. nonlife premium volume in 2013 was up by 1.7 percent. Growth in the advanced markets will accelerate in 2014 as increased global demand boosts trade and many countries ease fiscal policy, while emerging market economies will experience moderate-to-weak growth as global monetary policy is tightened this year and next, the report said.