TY - CHAP A1 - Alho, J. A1 - Cruijsen, H. A1 - Keilman, N. T1 - Empirically based specification of forecast uncertainty Y1 - 2008 DO - 10.1017/CBO9780511493393.004 A3 - Alho, J. A3 - Hougaard Jensen, S. A3 - Lassila, J. T2 - Uncertain Demographics and Fiscal Sustainability CY - Cambridge PB - Cambridge University Press SP - 34 EP - -54 ER -