The concept of alternative risk premia is an extension of the factor investing approach. Factor investing consists in building long-only equity portfolios, which are directly exposed to common risk factors like size, value or momentum. Alternative risk premia designate non-traditional risk...

Estimating asset correlations is difficult in practice since there is little available data and many parameters have to be found. Paul Demey, Jean-Frédéric Jouanin, Céline Roget and Thierry Roncalli present a tractable version of the multi-factor Merton model in which firms are sorted into...

The emergence of net zero emissions policies is currently one of the most important topics among asset owners and managers. It considerably changes portfolio allocation and the investment framework of both passive and active investors. The academic literature generally concludes that...

In this short note, we consider mean-variance optimized portfolios with transaction costs. We show that introducing quadratic transaction costs makes the optimization problem more difficult than using linear transaction costs. The reason lies in the specification of the budget constraint, which...

This article explores the use of machine learning models to build a market generator. The underlying idea is to simulate artificial multi-dimensional financial time series, whose statistical properties are the same as those observed in the financial markets. In particular, these synthetic data...

This research project is both an update of the analysis on carbon emissions trajectories proposed by Le Guenedal et al. (2020) and a companion study of the climate risk measures defined by Le Guenedal and Roncalli (2022). While Le Guenedal et al. (2020) use carbon intensities, we extend the...

Because of the 2015 Paris Agreement, the development of ESG investing and the emergence of net zero emission policies, climate risk is certainly the most important topic and challenge for asset owners and managers now and will remain so over the next five years. It considerably changes portfolio...

This article is part of a comprehensive research project on liquidity risk in asset management, which can be divided into three dimensions. The first dimension covers liability liquidity risk (or funding liquidity) modeling, the second dimension focuses on asset liquidity risk (or market...

This report is made up of four research papers, which have been written to perform liquidity stress testing programs, which comply with ESMA regulatory guidelines: (1) Roncalli, T., Karray-Meziou, F., Pan, F., and Regnault, M. (2021), Liquidity Stress Testing in Asset Management — Part 1....