Vélez-Grajales, Viviana

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  • Publication
    How Pension Rules Affect Work and Contribution Patterns: A Behavioral Model of the Chilean Privatized Pension System
    (2008-10-01) Todd, Petra; Vélez-Grajales, Viviana
    Chile has been at the forefront of pension reform, having switched in 1980 from a pay-as-you-go system to a fully funded privatized accounts system. The Chilean system served as a model for reform in many other Latin American countries and has also been considered by U.S. policy makers as a possible prototype for social security reform. Some of the criticisms of the Chilean system are low coverage rates and contributions rates among certain segments of the population. In 2006, the Chilean government proposed some reforms aimed at increasing coverage and contribution rates and expanding the safety net provided by the system to poor households. This study evaluates how changes in pension system rules affect working behavior and pension contribution patterns using data from a new Chilean household survey administered in 2002 and 2004 linked with administrative data from the pension regulatory agency. It develops and estimates a dynamic model of decision-making about working in the covered or uncovered sectors of the economy and studies implications for pension accumulations. The estimated model is used to simulate behavior under different pension system rules, such as a change in the number of years of contributions required for the minimum pension or a change in pension plan fees.
  • Publication
    Reforms to an Individual Account Pension System and their Effects on Work and Contribution Decisions: The Case of Chile
    (2008-09-01) Vélez-Grajales, Viviana
    This study evaluates the effect of Chile’s pension system rules and regulations on individuals’ contribution and working decisions. In 1980 Chile was the first country to switch from a pay-as-you-go system to a privatized system based on individual investment accounts; then it has since been a model for pension reforms in many other Latin American countries. The Chilean system has also been considered by U.S. policy makers as a possible prototype for reform. This paper develops and estimates a dynamic behavioral model of individual decision-making about formal or informal sector employment and about pension contributions, accounting for regulations that govern the timing and level of pension benefits. Model parameters are obtained by the method of simulated maximum likelihood applied to longitudinal data from a new household survey, the Social Protection Survey (2002 to 2004), and administrative data from the pension regulatory agency. The estimated model is used to simulate the impact on employment and contribution patterns of changing the system rules. Reducing the number of quarters required to obtain the Minimum Pension and increasing the size of that pension increases work in the formal sector and contributions in the informal sector.