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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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Transition versus physical climate risk pricing in European financial markets : a text-based approach
Bua, Giovanna; Kapp, Daniel; Ramella, Federico; … - 2022
the industry they operate in. We find that firm level information appears to be used as a gauge for transition risk, in …
Persistent link: https://www.econbiz.de/10013271146
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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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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/10010261275
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Can central bank communication help to stabilise inflation expectations?
Jung, Alexander; Kühl, Patrick - 2021
information and news channel. A novelty of the study is its use of data from Google Analytics on ECB website traffic as proxy for … communication on the information demand of the public and ultimately on inflation expectations. Overall, this study shows that …-term professional inflation expectations. Our findings add to the theoretical evidence on the existence of an information and news …
Persistent link: https://www.econbiz.de/10012511097
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Controlling Complexity in Spatial Modelling
Paelinck, Jean - 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/10010315050
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The Micro Dynamics of Macro Announcements
Mittnik, Stefan; Robinzonov, Nikolay; Wohlrabe, Klaus - 2013
-frequency announcement effects in several ways. First, we account for endogenous return dynamics by assessing announcement impacts via …
Persistent link: https://www.econbiz.de/10010323014
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How to Measure Financial Market Efficiency? A Multifractality-Based Quantitative Approach with an Application to the European Carbon Market
Sattarhoff, Cristina; Gronwald, Marc - 2018
anticipated, the second finding is noteworthy, as various observers expressed concerns with regard to the information efficiency …
Persistent link: https://www.econbiz.de/10011887362