TY - BOOK AU - Barron,John M. AU - Ewing,Bradley T . AU - Lynch,Gerald J . TI - Understanding macroeconomic theory / SN - 9780415701969 U1 - 339 PY - 2006/// CY - London : PB - Routledge , KW - MACROECONOMICS N1 - Includes bibliographical referrences and index ER -