PHILADELPHIA – Encouraged by the success of four “field” journals established ten years ago, the American Economic Association has commissioned a fifth. American Economic Review: Insights, under editor Amy Finkelstein, of the Massachusetts Institute of Technology. will join the American Economic Journals of Applied Economics, Economic Policy, Macroeconomics, and Microeconomics. The idea is to publish short papers with important insights that can be conveyed succinctly. “Sometimes the most important findings are those that require little room,” wrote Finkelstein in her report at the business meeting of the American Economic Association here Friday. Famous examples, she wrote, include Paul Samuelson’s landmark…