TY - CHAP A1 - Shoven, J.B. T1 - New Age Thinking: Alternative Ways of Measuring Age, their Relationship to Labor Force Participation, Government Policies and GDP Y1 - 2010 A3 - Wise, D.A. T2 - Research Findings in the Economics of Aging PB - National Bureau of Economic Research SP - 17 EP - -31 ER -