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publications
Multi-period Growth-at-Risk Forecasting with Recurrent Neural Network
Published in Working Paper, 2024
We propose to forecast multi-horizon Growth-at-Risk using flexible dynamic sequence models combining many-to-many recurrent neural networks with an objective function that guarantees non-crossing of quantile estimates.
Recommended citation: Kooiker, S., Hoesch, L., & Schaumburg, J. (2024). Multi-period Growth-at-Risk Forecasting with Recurrent Neural Network. Working Paper.
Nonparametric Time-Varying Granger Causality
Published in Working Paper, 2025
A procedure that integrates an exponentially weighted moving average version of the Diks-Panchenko test with EWMA local density estimators to assess Granger causality in dynamic environments.
Recommended citation: Kooiker, S. (2025). Nonparametric Time-Varying Granger Causality. Working Paper.
Dynamic Nelson Siegel Model with Time-Varying Neural Factor Loadings
Published in Working Paper, 2026
This paper introduces neural network-predicted factor loadings in the dynamic Nelson-Siegel yield curve model for simultaneous analysis and forecasting of interest rates across different maturities.
Recommended citation: Kooiker, S., van Brummelen, J., Schaumburg, J., & Zamojski, M. (2026). Dynamic Nelson Siegel Model with Time-Varying Neural Factor Loadings. Working Paper.
talks
Multi-period Growth-at-Risk Forecasting with Recurrent Neural Network
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Presentation of Growth-at-Risk forecasting paper at the Italian Econometrics Association workshop for PhD students. This presentation included a formal discussant.
Multi-period Growth-at-Risk Forecasting with Recurrent Neural Network
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Poster presentation of Growth-at-Risk forecasting paper at the annual National Econometrics Study Group meeting at Erasmus University Rotterdam.
Multi-period Growth-at-Risk Forecasting with Recurrent Neural Network
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Presentation of joint work with Lukas Hoesch and Julia Schaumburg on Growth-at-Risk forecasting with recurrent neural networks at the International Symposium on Forecasting.
Nonparametric Time-Varying Granger Causality
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Presentation of single-authored paper on nonparametric time-varying Granger causality at the CFE-CMS conference at King’s College London.
Econometric Game 2025 Finalist
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Finalist in the Econometric Game 2025 at the University of Amsterdam. Three-day competition project on grid congestion forecasting in Germany.
Dynamic Nelson Siegel Model with Time-Varying Neural Factor Loadings
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Presentation of joint work on dynamic Nelson-Siegel models with neural factor loadings at the FinEML Conference at Erasmus University Rotterdam.
Nonparametric Time-Varying Granger Causality
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Presentation of single-authored paper on nonparametric time-varying Granger causality at the International Association for Applied Econometrics conference at the University of Torino.
Dynamic Nelson Siegel Model with Time-Varying Neural Factor Loadings
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Presentation of third paper at the International Symposium on Forecasting conference in Beijing, China, in the second year of the PhD.
Dynamic Nelson Siegel Model with Time-Varying Neural Factor Loadings
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Presentation of joint work on dynamic Nelson-Siegel models with neural factor loadings at the ECB Conference on Forecasting Techniques. This presentation included a formal discussant.
teaching
Course Coordinator - Business Statistics Courses
PhD Teaching Assistant, Vrije Universiteit Amsterdam, School of Business and Economics, 2023
As a PhD candidate, I coordinate two large-scale courses with over 600 students each in the Business Statistics program. This role involves organizing teaching activities, managing teaching assistants, developing course materials, and ensuring smooth delivery of the courses.
Thesis Supervision
MSc/BSc Thesis Supervision, Vrije Universiteit Amsterdam, School of Business and Economics, 2023
Supervising Bachelor and Master students during their thesis projects in Econometrics, Data Science, and related fields. Topics focus on machine learning, time series forecasting, and econometric methods.