EconBase
← All papers

Enhancing Causal Discovery in Financial Networks with Piecewise Quantile Regression

Cameron Cornell, Lewis Mitchell, Matthew Roughan

arXiv 22 Aug 2024 · Finance — Statistical Finance · publishedPhysica A Statistical Mechanics and its Applications (2025) · 1 citations (OpenAlex)

arXiv:2408.12210 · PDF · DOI · OpenAlex · Extracted main text

Abstract

Financial networks can be constructed using statistical dependencies found within the price series of speculative assets. Across the various methods used to infer these networks, there is a general reliance on predictive modelling to capture cross-correlation effects. These methods usually model the flow of mean-response information, or the propagation of volatility and risk within the market. Such techniques, though insightful, don't fully capture the broader distribution-level causality that is possible within speculative markets. This paper introduces a novel approach, combining quantile regression with a piecewise linear embedding scheme - allowing us to construct causality networks that identify the complex tail interactions inherent to financial markets. Applying this method to 260 cryptocurrency return series, we uncover significant tail-tail causal effects and substantial causal asymmetry. We identify a propensity for coins to be self-influencing, with comparatively sparse cross variable effects. Assessing all link types in conjunction, Bitcoin stands out as the primary influencer - a nuance that is missed in conventional linear mean-response analyses. Our findings introduce a comprehensive framework for modelling distributional causality, paving the way towards more holistic representations of causality in financial markets.

Citation extraction

41
references
48
in-text mentions
41
distinct cited
3
self-citations
7,526
main-text words

appendix boundary found by appendix_command · 99% of the source is main text. Read the extracted text to check this.

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
1Cornell, C., Mitchell, L., Roughan, M.: Vector autoregression in cry… (2023) ArXiv preprint arXiv:2308.15769 self0.84333100%
2Ahelegbey, D.F., Cerchiello, P., Scaramozzino, R.: Network based evi… (2021) International Review of Financial Analysis 81, 102,101 – 102,101 (2021)0.51121100%
3Cornell, C., Mitchell, L., Roughan, M.: Rank is all you need: Robust… (2024) In: Complex Networks & Their Applications XII, pp. 468–482. Springer Nature Switzerland, Cham (2024) self0.51121100%
4Aste, T.: Cryptocurrency market structure: connecting emotions and e… (2019) Digital Finance 1 (2019)0.51121100%
5Greene, W.H.: Econometric Analysis, 7th, international edition edn (2012) Pearson, Boston (2012)0.51121100%
6Cornell, C., Mitchell, L., Roughan, M.: Rank is all you need: develo… (2024) Applied Network Science 9(1), 39 (2024) self0.51121100%
7Al-Yahyaee, K.H., Mensi, W., Yoon, S.M.: Efficiency, multifractality… (2018) Finance Research Letters 27, 228–234 (2018)0.40511100%
8Azqueta-Gavaldón, A.: Causal inference between cryptocurrency narrat… (2020) Physica A: Statistical Mechanics and its Applications 537, 122,574 (2020)0.40511100%
9Balcilar, M., Gupta, R., Pierdzioch, C.: Does uncertainty move the g… (2016) Resources Policy 49, 74–80 (2016)0.40511100%
10Baur, D.G.: The structure and degree of dependence: A quantile regre… (2013) Journal of Banking & Finance 37(3), 786–798 (2013)0.40511100%

Showing the top 10 of 41 scored citations.