Entropic signatures of market response under concentrated policy communication

By Ewa A. Drzazga-Szczęśniak, Rishabh Gupta, Adam Z. Kaczmarek, Jakub T. Gnyp, Marcin W. Jarosik, Róża Waligóra, Marta Kielak, Shivam Gupta, Agata Gurzyńska, Johann Gil, Piotr Szczepanik, Józefa Kielak, Dominik Szczęśniak

Rating

1533
Battle Count: 73

Relevance

7/10
The paper provides a novel diagnostic framework for identifying market regimes where volatility is high but information content is constrained (structured volatility). This is directly relevant to quantitative trading as it: (1) identifies when standard stochastic models (e.g., GBM) overstate randomness, (2) provides timing signals for extreme events via cumulative entropy, (3) suggests entropy as a control variable for regime-aware strategy selection, and (4) offers a complement to traditional volatility measures. However, the paper is primarily diagnostic/descriptive rather than providing a complete trading system, and lacks out-of-sample validation or backtesting.

Implementation Complexity

4/10
The core methodology (Shannon entropy on binned returns, cumulative entropy with sliding windows) is mathematically straightforward and implementable in Python with standard libraries (numpy, scipy). The Velleman binning formula is well-defined. The main complexity lies in: (1) data collection and standardization across multiple providers and formats, (2) proper handling of 5-minute vs daily data, (3) designing meaningful sliding window parameters, and (4) interpreting results across 15 indices and 4 regions. No specialized hardware or complex optimization is required.

Reproducibility

3/5
The paper describes a clear methodology with specific formulas (Shannon entropy, cumulative entropy, Velleman binning). Data sources are listed (stooq.com, investing.com, eodhd.com, dukascopy.com, bluecapitaltrading.com). However, no code repository is mentioned. The in-house MariaDB database and Python modules are described but not publicly shared. The methodology is well-documented enough for replication given access to the same data sources.

About this paper

Methodology: Information-theoretic market analysis with Shannon entropy and cumulative entropy. Problem types: Anomaly Detection, Risk Management, Market Trend Prediction, Density Estimation, Time Series Analysis.

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