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Title: Credit market Jitters in the course of the financial crisis: A permutation entropy approach in measuring informational efficiency in financial assets
Authors: Siokis, Fotios M.
Type: Article
Subjects: FRASCATI::Social sciences
FRASCATI::Engineering and technology
Keywords: Permutation entropy
Financial crisis
Financial markets
Informational efficiency
Issue Date: 1-Jun-2018
Source: Physica A: Statistical Mechanics and its Applications
Volume: 499
First Page: 266
Last Page: 275
Abstract: We explore the evolution of the informational efficiency for specific instruments of the U.S. money, bond and stock exchange markets, prior and after the outbreak of the Great Recession. We utilize the permutation entropy and the complexity-entropy causality plane to rank the time series and measure the degree of informational efficiency. We find that after the credit crunch and the collapse of Lehman Brothers the efficiency level of specific money market instruments’ yield falls considerably. This is an evidence of less uncertainty included in predicting the related yields throughout the financial disarray. Similar trend is depicted in the indices of the stock exchange markets but efficiency remains in much higher levels. On the other hand, bond market instruments maintained their efficiency levels even after the outbreak of the crisis, which could be interpreted into greater randomness and less predictability of their yields.
ISSN: 0378-4371
Electronic ISSN: 0378-4371
Appears in Collections:Department of Balkan, Slavic & Oriental Studies

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