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Collective dynamics of stock market efficiency
[article]
2020
arXiv
pre-print
Summarized by the efficient market hypothesis, the idea that stock prices fully reflect all available information is always confronted with the behavior of real-world markets. While there is plenty of evidence indicating and quantifying the efficiency of stock markets, most studies assume this efficiency to be constant over time so that its dynamical and collective aspects remain poorly understood. Here we define the time-varying efficiency of stock markets by calculating the permutation
arXiv:2011.14809v1
fatcat:imk6dk6xn5d33a4kmtl4blq6ki