This book provides a detailed analysis of Chile's experience in developing the market for retirement products, including life annuities and phased withdrawals. It explores the availability of large individual and company-level datasets, to examine statistically the determinants of performance of Chile's annuity markets, such as money's worth ratios and the annuity rate. It shows that Chile was able to develop an efficient market for retirement products, and identifies important policy lessons for other reforming countries.