Osu BO. Optimal Portfolio Selection for a Defined Contribution Pension Fund with Return Clauses of Premium with Predetermined Interest Rate under Mean-variance Utility: Optimal Portfolio Selection for a Defined Contribution Pension Fund with Return Clauses of Premium with Predetermined Interest Rate under Mean-variance Utility. ajms [Internet]. 2019 Jan. 29 [cited 2024 May 3];2(02). Available from: http://www.ajms.in/index.php/ajms/article/view/162