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Combining predictive distributions of electricity prices: Does minimizing the CRPS lead to optimal decisions in day-ahead bidding?

Weronika Nitka, Rafał Weron

arXiv 29 Aug 2023 · Finance — Statistical Finance · publishedBadania Operacyjne i Decyzje/Operations Research and Decisions (2023) · 12 citations (OpenAlex)

arXiv:2308.15443 · PDF · DOI · OpenAlex · Extracted main text

Abstract

Probabilistic price forecasting has recently gained attention in power trading because decisions based on such predictions can yield significantly higher profits than those made with point forecasts alone. At the same time, methods are being developed to combine predictive distributions, since no model is perfect and averaging generally improves forecasting performance. In this article we address the question of whether using CRPS learning, a novel weighting technique minimizing the continuous ranked probability score (CRPS), leads to optimal decisions in day-ahead bidding. To this end, we conduct an empirical study using hourly day-ahead electricity prices from the German EPEX market. We find that increasing the diversity of an ensemble can have a positive impact on accuracy. At the same time, the higher computational cost of using CRPS learning compared to an equal-weighted aggregation of distributions is not offset by higher profits, despite significantly more accurate predictions.

Citation extraction

31
references
74
in-text mentions
31
distinct cited
11
self-citations
5,629
main-text words

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Most heavily cited references

The works this paper leans on most, across its whole bibliography — not restricted to papers in our corpus. Ranked by composite intensity, which combines how often a work is mentioned, how many sections mention it, and how much of that falls in the main text rather than the appendix.

ReferenceIntensityMentionsSectionsMain text
1Marcjasz, G., Narajewski, M., Weron, R., and Ziel, F (2023) Distributional neural networks for electricity price forecasting self1.000154100%
2Gneiting, T., and Raftery, A. E (2007) Strictly proper scoring rules, prediction, and estimation0.92843100%
3Berrisch, J., and Ziel, F (2023) Multivariate probabilistic CRPS learning with an application to day-ahead electricity prices, 20230.87462100%
4Berrisch, J., and Ziel, F (2021) CRPS learning0.81142100%
5Maciejowska, K., Uniejewski, B., and Weron, R (2023) Forecasting electricity prices self0.81142100%
6Gneiting, T., and Katzfuss, M (2014) Probabilistic forecasting0.73732100%
7Lichtendahl, K. C., Grushka-Cockayne, Y., and Winkler, R. L (2013) Is it better to average probabilities or quantiles?0.73732100%
8Uniejewski, B (2023) Smoothing Quantile Regression Averaging: A new approach to probabilistic forecasting of electricity prices, 20230.73732100%
9Wang, X., Hyndman, R., Li, F., and Kang, Y (2022) Forecast combinations: An over 50-year review0.73732100%
10Janczura, J., and Puć, A (2023) ARX-GARCH probabilistic price forecasts for diversification of trade in electricity marketsvariance stabilizing transformation a…0.64422100%

Showing the top 10 of 31 scored citations.

Cited by, within the corpus

arXiv econ.EM papers that cite this one, ranked by how heavily they lean on it.

Citing paperIntensityMentionsSections
1Extrapolating the long-term seasonal component of electricity prices for forecasting in the day-ahead market0.84333
2Probabilistic Forecasting for Day-ahead Electricity Prices, Battery Trading Strategies and the Economic Evaluation of Predictive Accuracy0.84333
3Multivariate Probabilistic CRPS Learning with an Application to Day-Ahead Electricity Prices0.64422