The Optimal Spending Rate Versus the Expected Real Return of a Sovereign Wealth Fund

53 Pages Posted: 5 Feb 2021

See all articles by Knut K. Aase

Knut K. Aase

Norwegian School of Economics (NHH) - Department of Business and Management Science

Petter Bjerksund

Norwegian School of Economics (NHH) - Department of Business and Management Science

Date Written: February 4, 2021

Abstract

We consider a sovereign wealth fund that invests broadly in the international financial markets. The influx to the fund has stopped. We adopt the life cycle model and demonstrate that the optimal spending rate from the fund is significantly less than the fund’s expected real rate of return. The optimal spending rate secures that the fund will last ”forever”. Spending the expected return will deplete the fund with probability one. Moreover, this strategy is inconsistent with optimal portfolio choice. Our results are contrary to the idea that it is sustainable to spend the expected return of a sovereign wealth fund.

Keywords: Optimal spending rate, endowment funds, expected utility, risk aversion, EIS, recursive utility

JEL Classification: D51, D53, D90, E21, G10, G12

Suggested Citation

Aase, Knut K. and Bjerksund, Petter, The Optimal Spending Rate Versus the Expected Real Return of a Sovereign Wealth Fund (February 4, 2021). NHH Dept. of Business and Management Science Discussion Paper No. 2021/1, Available at SSRN: https://ssrn.com/abstract=3779850 or http://dx.doi.org/10.2139/ssrn.3779850

Knut K. Aase (Contact Author)

Norwegian School of Economics (NHH) - Department of Business and Management Science ( email )

Helleveien 30
Bergen, NO-5045
Norway

Petter Bjerksund

Norwegian School of Economics (NHH) - Department of Business and Management Science ( email )

Helleveien 30
Bergen, NO-5045
Norway

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