Is Bigger Better? Size and Performance in Pension Plan Management

59 Pages Posted: 12 Oct 2010 Last revised: 29 Sep 2011

I. J. Alexander Dyck

University of Toronto - Rotman School of Management

Lukasz Pomorski

AQR Capital Management, LLC

Date Written: June 1, 2011

Abstract

We document substantial positive scale economies in asset management using a defined benefit pension plan database. The largest plans outperform smaller ones by 43-50 basis points per year. Between a third and one half of these gains arise from cost savings related to internal management, where costs are at least three times lower than under external management. Most of the superior returns come from large plans’ increased allocation to alternative investments and realizing greater returns in this asset class. In their private equity and real estate investments large plans have both lower costs and higher gross returns, yielding up to 6% per year improvement in returns. The ability to take advantages of scale depends on plan governance with better governed plans having higher scale economies.

Keywords: pension fund, investment management, economies of scale, size, alternative assets, private equity

JEL Classification: G11, G20, G23

Suggested Citation

Dyck, I. J. Alexander and Pomorski, Lukasz, Is Bigger Better? Size and Performance in Pension Plan Management (June 1, 2011). Rotman School of Management Working Paper No. 1690724. Available at SSRN: https://ssrn.com/abstract=1690724 or http://dx.doi.org/10.2139/ssrn.1690724

I.J. Alexander Dyck

University of Toronto - Rotman School of Management ( email )

105 St. George Street
Toronto, Ontario M5S 3E6 M5S 3E6
Canada
416-946-0819 (Phone)

Lukasz Pomorski (Contact Author)

AQR Capital Management, LLC ( email )

Greenwich, CT
United States

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