A Median Voter Model of Social Security
by
Robin Boadway
Queens University
Kingston, Ontario K7L 3N6
Canada
and
David E. Wildasin
Indiana University
Bloomington, IN 47045
USA
Abstract
This paper presents a theoretical median voter analysis of the determination of the level of social security. The framework for the analysis is a continuous-time overlapping-generations model with non-altruistic households facing borrowing constraints in the capital market. A majority voting equilibrium is shown to exist, in which the median voter is liquidity constrained. The desired level of social security for each voter is a declining function of the pre-existing level of social security. As a consequence, in a sequence of votes on social security beginning with a zero level, the program initially overshoots its steady state value.
David E. Wildasin / dew@davidwildasin.us