Search Results for author: Olivier Scaillet

Found 8 papers, 0 papers with code

Sparse spanning portfolios and under-diversification with second-order stochastic dominance

no code implementations2 Feb 2024 Stelios Arvanitis, Olivier Scaillet, Nikolas Topaloglou

We develop and implement methods for determining whether relaxing sparsity constraints on portfolios improves the investment opportunity set for risk-averse investors.

Latent Factor Analysis in Short Panels

no code implementations24 Jun 2023 Alain-Philippe Fortin, Patrick Gagliardini, Olivier Scaillet

An empirical application to a large panel of monthly U. S. stock returns separates date after date systematic and idiosyncratic risks in short subperiods of bear vs. bull market based on the selected number of factors.

Time Series

Eigenvalue tests for the number of latent factors in short panels

no code implementations28 Oct 2022 Alain-Philippe Fortin, Patrick Gagliardini, Olivier Scaillet

This paper studies new tests for the number of latent factors in a large cross-sectional factor model with small time dimension.

Multi-Signal Approaches for Repeated Sampling Schemes in Inertial Sensor Calibration

no code implementations13 May 2021 Gaetan Bakalli, Davide A. Cucci, Ahmed Radi, Naser El-Sheimy, Roberto Molinari, Olivier Scaillet, Stéphane Guerrier

While different techniques are available to model and remove the deterministic errors, there has been considerable research over the past years with respect to modelling the stochastic errors which have complex structures.

SWAG: A Wrapper Method for Sparse Learning

no code implementations23 Jun 2020 Roberto Molinari, Gaetan Bakalli, Stéphane Guerrier, Cesare Miglioli, Samuel Orso, Mucyo Karemera, Olivier Scaillet

As a consequence, there is the need to make the outputs of machine learning algorithms more interpretable and to deliver a library of "equivalent" learners (in terms of prediction performance) that users can select based on attribute availability in order to test and/or make use of these learners for predictive/diagnostic purposes.

Attribute Sparse Learning

Wealth Effect on Portfolio Allocation in Incomplete Markets

no code implementations21 Apr 2020 Chenxu Li, Olivier Scaillet, Yiwen Shen

We develop a novel five-component decomposition of optimal dynamic portfolio choice, which reveals the simultaneous impacts from market incompleteness and wealth-dependent utilities.

Spanning analysis of stock market anomalies under Prospect Stochastic Dominance

no code implementations6 Apr 2020 Stelios Arvanitis, Olivier Scaillet, Nikolas Topaloglou

We develop and implement methods for determining whether introducing new securities or relaxing investment constraints improves the investment opportunity set for prospect investors.

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