PT - JOURNAL ARTICLE AU - Kees Koedijk AU - Alfred Slager TI - New Perspective on Investment Models AID - 10.3905/jpm.2021.1.224 DP - 2021 Mar 31 TA - The Journal of Portfolio Management PG - 15--23 VI - 47 IP - 5 4099 - https://pm-research.com/content/47/5/15.short 4100 - https://pm-research.com/content/47/5/15.full AB - What is the secret ingredient to securing better long-term investment outcomes? Investors seldom consider institutional investors from an organizational and strategic perspective. Thinking in terms of investment models highlights a severely under-researched area. The authors propose that this different lens is required to make sense of the dynamics in the investment industry and has a lot to offer to boards that are open to this. Five models dominate the investment industry, and the authors identify an emergent one that has its roots in the existing models but takes a strong societal perspective, which they denote the prudent society investment model. Thinking in terms of investment models, boards and decision makers will be able, far better than today, to determine why, how, and what is needed for investment success.TOPICS: Pension funds, portfolio theory, financial crises and financial market historyKey Findings▪ Every investor works with an investment model: a unique combination of goals, risk appetite, investment beliefs, and governance of investment implementation. ▪ Making the underlying assumptions and consequences explicit is key; otherwise, achieving long-term success is a struggle. ▪ Investment models evolve slowly. The increased focus on long-term, private assets and the incorporation of societal goals are new elements but do not (yet) form an entirely new model. Thus, we have to keep learning from and adapting the existing ones.