Technical paper/Asset allocation

Mostly prior-free asset allocation

This paper develops a prior-free version of Harry Markowitz’s efficient portfolio theory, which allows the decision maker to express their preferences with regard to risk and reward, even though they are unable to express a prior over potentially…

Portfolio optimisation via replication

Filippo Della Casa and Michele Gaffo propose a new framework to run portfolio optimisation for life insurance business, by exporting the replicating portfolio technique from risk management to investment management. In particular, they develop a new risk…

Factors on demand

Linear factor models are commonly used by portfolio managers to capture sources of risk, traditionally split between systematic and idiosyncratic types. By using the conditional link between flexible bottom-up estimation, and top-down attribution, factor…

Factors on demand

Attilio Meucci introduces a multi-asset-class return decomposition framework that extends beyond the standard systematic-plus-idiosyncratic approach. This framework, which rests on the conditional link between flexible bottom-up estimation factor models…

Maximum drawdown

The maximum loss from a market peak to a market nadir, commonly called the maximum drawdown (MDD), measures how sustained one’s losses can be. Malik Magdon-Ismail and Amir Atiya present analytical results relating the MDD to the mean return and the…

Bidding principles

Robert Almgren and Neil Chriss show how principal bid programme trades can be priced and evaluated as part of a trading business. By annualising the price impacts and variances of such trades, they construct an information ratio measure that can be used…

Minimising extremes

Portfolio diversification often breaks down in stressed market environments, but the co-movement of asset prices in a tail risk regime may be modelled using a coefficient of tail dependence. Here, Yannick Malevergne and Didier Sornette show how such…

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