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Market structure dynamics during COVID-19 outbreak

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arxiv 2003.10922 v1 pith:5KQGNEX6 submitted 2020-03-23 q-fin.ST cond-mat.stat-mech

classification q-fin.STcond-mat.stat-mech
keywords market-structureduringstructurecovid-19outbreakaltogetheranalyzingarticle
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In this note, we discuss the impact of the COVID-19 outbreak from the perspective of the market-structure. We observe that the US market-structure has dramatically changed during the past four weeks and that the level of change has followed the number of infected cases reported in the USA. Presently, market-structure resembles most closely the structure during the middle of the 2008 crisis but there are signs that it may be starting to evolve into a new structure altogether. This is the first article of a series where we will be analyzing and discussing market-structure as it evolves to a state of further instability or, more optimistically, stabilization and recovery.

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    cs.LG 2025-05 conditional novelty 2.0 of 10

    This review consolidates the theory and algorithms of Information Filtering Networks, arguing they offer an efficient, interpretable way to model high-dimensional dependencies and to build neural network structures.

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