RT Book, Section A1 OECD T1 Fertility JF OECD Pensions at a Glance YR 2011 FD Mar 17 SP 162 OP 163 AB The total fertility rate is below the replacement level – the number of children needed to keep the total population constant – in 29 out of 34 OECD countries for 2005-10. The only exceptions are Israel and Mexico (with 2.8 and 2.2 children per woman, respectively) and Iceland, Turkey and the United States (at replacement level of 2.1). However in more than two-thirds of OECD countries there has been a moderate increase in fertility rates over the last decade. Fertility rates have a profound implication for pension systems because they, along with life expectancy, are the drivers of population ageing. PB Organisation for Economic Co-operation and Development DO 10.1787/pension_glance-2011-33-en UL http://www.oecd-ilibrary.org/;jsessionid=g7d78n32gn01l.x-oecd-live-02content/chapter/pension_glance-2011-33-en