A/RES/69/113 United Nations pension system area as a reliable method of improving the risk-return profile of its portfolio over long periods of time; 27. Requests the Secretary-General, as fiduciary for the investment of the assets of the Fund, to continue to diversify its investments between developed, developing and emerging markets, wherever this serves the interests of the participants and the beneficiaries of the Fund, and also requests the SecretaryGeneral to ensure that decisions concerning the investments of the Fund in any country are implemented prudently, taking fully into account the four main criteria for investment, namely, safety, profitability, liquidity and convertibility, under volatile market conditions; 28. Encourages the Secretary-General, as fiduciary for the investment of the assets of the Fund, to continue to explore prospects in all markets, taking into account risk-return profiles and always applying sound risk management techniques, and taking fully into account the four main criteria for investments of the Fund; 29. Recognizes the importance of the use of in-house expertise, and in this regard requests the Secretary-General to continue to take all measures to ensure that the costs for non-discretionary advisory fees are reduced and to report thereon in the context of future reports. 68th plenary meeting 10 December 2014 4/4