In Colombia, as many countries in Latin America in the late 80s and 90s made important changes to their pension schemes. This paper analyzes one of those changes in Colombia. The change consist on increasing the contribution period required to claim pension benefits and the inclusion of wages in the formula of the amount pension. For this purpose I study the impact on the labor supply of an exogenous change in these conditions using a regression discontinuity design. It is found a positive effect on average hours worked in the week.
