This paper presents and explains crosscountry data for mandatory publicly and privately managedpension systems around the world. This report is organizedinto three parts corresponding to three broad types ofindicators. These indicators relate to: (i) the relevantcontextual factors referred to here as environment; (ii)pension system design parameters; and (iii) indicators ofperformance. Part one of the report provides someinformation on the environment in which the system operates,focusing on demographic and labor market conditions.Understanding the current and future path of demographicpatterns, especially aging, will place the later section onperformance into a clearer perspective. Part two on pensionsystem design uses a standardized taxonomy to describedifferences across countries. The data on system design arepresented in two groups of indicators: (i) overallarchitecture of the system: pillars, schemes including civilservants and other special schemes, and (ii) operatingparameters of the system, which includes two sub-groups: a)qualifying conditions: pension eligibility ages, andcontribution history, and b) contribution rates, definedbenefit (DB), and defined contribution (DC) schemes, andindexation. It should be noted that while many countrieshave more than one program providing retirement incomebenefits, unless otherwise indicated, most of the data referonly to the national scheme. Part three presents a set ofperformance indicators. The indicators included are corepension indicators that illustrate six key criteria of anypension scheme, namely: (i) coverage, (ii) adequacy, (iii)financial sustainability, (iv) economic efficiency (i.e.,minimizing the distortions of the retirement?income systemon individuals' behavior, such as labor supply andsavings outside of pension plans), (v) administrativeefficiency, and (vi)) security of benefits in the face ofdifferent risks and uncertainties.