Public choice theory (PCT) assumes that elected officials and public administrators act in their self-interest, not in the public interest. This article tests the theory regarding the effects of public governance on U.S. public pension plans, which are increasingly important socioeconomic institutions. The authors develop several PCT-based hypotheses regarding the dependent variable of plan funding, a measure of plan performance. Data sources include biennial PENDAT survey data for [1992][1993][1994][1995][1996]. The results indicate limited support for PCT. A positive relationship between the presence of boards of trustees and plan funding is found, but no relationship between citizen voting and plan funding.Within the past few decades, earlier projections regarding the potential growth and impact of institutional owners (Berle, 1959;Drucker, 1976;Herman, 1981) have come to fruition. Nearly 60% of the equity of the thousand largest U.S. companies is now owned by financial institutions (Useem, 1998). This relatively concentrated ownership enables institutional owners to be a significant force in financial markets, where institutional trading has been associated with increased price swings and market volatility (Brown & Brooke, 1993;Norris, 1996;Schwartz, 1991). Studies indicate that some institutional owners, particularly public pension plans and select mutual funds, actively assert their power by influencing the strategy of targeted firms in hopes of improving corporate performance