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Jumps in high-frequency data : spurious detections, dynamics, and news
Bajgrowicz, Pierre; Scaillet, Olivier - 2011
jumps. Jumps, High-Frequency Data, Spurious Detections, Jumps Dynamics, News Releases, Cojumps …
Persistent link: https://www.econbiz.de/10009313027
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The virtue of complexity in machine learning portfolios
Kelly, Bryan T.; Malamud, Semyon; Zhou, Kangying - 2021
Contrary to conventional wisdom in nance, return prediction R2 and optimal portfolio Sharpe ratio generally increase with model parameterization, even when minimal regularization is used. We theoretically characterize the behavior of return prediction models in the high complexity regime, i.e....
Persistent link: https://www.econbiz.de/10012800453
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Principal portfolios
Kelly, Bryan T.; Malamud, Semyon; Pedersen, Lasse Heje - 2020 - This version: June 8, 2020
We propose a new asset-pricing framework in which all securities' signals are used to predict each individual return. While the literature focuses on each security's own- signal predictability, assuming an equal strength across securities, our framework is flexible and includes...
Persistent link: https://www.econbiz.de/10012271188
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High-frequency jump analysis of the bitcoin market
Scaillet, Olivier; Treccani, Adrien; Trevisan, Christopher - 2017
We use the database leak of Mt. Gox exchange to analyze the dynamics of the price of bitcoin from June 2011 to November …
Persistent link: https://www.econbiz.de/10011762219
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Informational Contagion in the Laboratory
Cipriani, Marco - 2015
correlated fundamentals open sequentially. In both markets, subjects receive private information. Subjects in the market opening … information is only imperfectly aggregated, subjects are able to make correct inferences based on the public information coming … when it is rational to do so because they convey information …
Persistent link: https://www.econbiz.de/10013017423
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Informational Contagion in the Laboratory
Cipriani, Marco - 2015
correlated fundamentals open sequentially. In both markets, subjects receive private information. Subjects in the market opening … information is only imperfectly aggregated, subjects are able to make correct inferences based on the public information coming … when it is rational to do so because they convey information …
Persistent link: https://www.econbiz.de/10013026974
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The existence of informationally efficient markets when individuals are rational
Muendler, Marc-Andreas - 2004
A rational-expectations equilibrium with positive demand for financial information does exist under fully revealing … average portfolio demand information in equilibrium if they can adjust portfolio size. More information diminishes the … endowments strongly differ from the average portfolio are worse off. Under fully revealing price, information market equilibria …
Persistent link: https://www.econbiz.de/10011451345
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Controlling complexity in spatial modelling
Paelinck, Jean H. P. - 2000
-set deviation compared to single-set ones; an interpretation is given in terms of information costs; examples show the relevance of …
Persistent link: https://www.econbiz.de/10009781643
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Price impact of aggressive liquidity provision
Gençay, Ramazan; Mahmoodzadeh, Soheil; Rojček, Jakub; … - 2016
takers. During bursts, market makers no longer passively impound information from order flow into quotes-a departure from the …
Persistent link: https://www.econbiz.de/10011516027
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Mortgage-related bank penalties and systemic risk among U.S. banks
Brož, Václav; Kočenda, Evžen - 2021
transmission with short-, medium-, and long-term dynamics. We find that after the possibility of a penalty is first announced to …
Persistent link: https://www.econbiz.de/10012697108