Investment efficiency is a function of the risk, return and total cost of an investment management structure, subject to the fiduciary and other constraints within which investors must operate. Institutional investors implement their investment policies through investment management structures. In this paper the aim is to enhance the investment management structure by broadening the financial objectives, by recognising the effect of behavioural issues and by incorporating governance constraints. We therefore suggest that investment efficiency should be considered as a combination of financial efficiency and non-financial efficiency.Modern portfolio theory had a revolutionary effect on portfolio construction. In the same way, we believe that investment management structures should be constructed in a more disciplined and quantitative manner. In this paper we outline the quantitative and qualitative methods by which these structures can be developed. The proposed new framework for designing investment management structures seeks to optimise net information ratios while simultaneously recognising the level of regret risk facing fiduciaries, minimising non-financiallyproductive behavioural biases and taking account of the resources available to the fiduciary to monitor these structures.

This paper extends the concept of investment efficiency from investment management structures to include strategic asset allocation and liability related issues. The concept of risk budgeting is developed. It represents a valuable way of incorporating risk and return information to produce more efficient investment decisions. Information ratio is a key measurement in the process, and it is concluded that the risk budget should be allocated based upon the marginal contribution to it for different sources of risk. Non-financial risk is also considered in terms of both governance and risk.