California Public Employees' Retirement System, the US's largest public pension, last year introduced to its board a radically different method of investing: the total portfolio approach.

TPA has already been adopted by multiple sovereign investors around the world, including Australia's Future Fund and the New Zealand Superannuation Fund.

In this episode, PEI Group Hong Kong bureau chief Alex Lynn sits down with Doug Bell, investment strategy director at NZ Super, to discuss the benefits and disadvantages of TPAs when constructing a private equity portfolio capable of delivering long-term results.

NZ Super has NZ$80.4 billion ($46 billion; €44 billion) in assets under management and is now led by two new co-CIOs. It began the process of rebuilding its buyouts portfolio from scratch this year.