This paper proposes an original behavioural finance representative agent model,to explain how fake news’empirical price impacts can persist in finance despite contradicting the efficient-market hypothesis.The model r...This paper proposes an original behavioural finance representative agent model,to explain how fake news’empirical price impacts can persist in finance despite contradicting the efficient-market hypothesis.The model reconciles empirically-observed price overreactions to fake news with empirically-observed price underreactions to real news,and predicts a novel secondary impact of fake news:that fake news in a security amplifies underreactions to subsequent real news for the security.Evaluating the model against a large-sample event study of the 2019 Chinese ADR Delisting Threat fake news and debunking event,this paper finds strong qualitative validation for its model’s dynamics and predictions.展开更多
The recent IPCC-SREX report focuses on the impact of extreme weather events on societies and underlines the absence of reliable data to assert a solid link between them and the current global climate change. Thanks to...The recent IPCC-SREX report focuses on the impact of extreme weather events on societies and underlines the absence of reliable data to assert a solid link between them and the current global climate change. Thanks to the unpublished materials that are contained in historic archives, this article suggests studying the cyclones which affected the Mascarene islands between 1654 and 2007 and which supply us with a catalog of hitherto unpublished events. Inspired by the Simpson-Saffir hurricanes Wind Scale, the research proposes a relative evaluation of the extremes of the region. It underlines the big fluctuations in the last three centuries and partially answers the current debate on the reliability of the data in relation to hurricanes and their link with the contemporary climate. The available archives show that this type of meteorological event has occurred frequently during the relevant historical period and that for that reason, has given rise to original strategies of adaptation on the part of the societies affected. The results presented here constitute new and reliable data which could make an important contribution to the decision-makers and to climatologists trying to design strategies which the populations of small islands facing the climatic hazards of the future will have to adopt.展开更多
A model universe is hypothesized where gravity is developed to take on the qualities of electrostatics. This necessarily breaks the Einstein Equivalence Principle where gravitational and inertial mass may vary. We are...A model universe is hypothesized where gravity is developed to take on the qualities of electrostatics. This necessarily breaks the Einstein Equivalence Principle where gravitational and inertial mass may vary. We are told that gravity and electromagnetism were unified in the earliest moments of the universe. Perhaps they are still unified today and the EEP is broken at the small scale. This paper shows a possible way how. For simplicity Newtonian Mechanics [1] are used throughout which means that formulae are only valid in the low mass, low speed limit. For high mass or high speed please refer to General Relativity [2]. Gravity is developed in the following sections: 1) Model A is attractive;standard physics. 2) Model AB is attractive/repulsive;Hermann Bondi [3];3) Model ABCD is likes vs opposites;non-standard physics. Also discussed is a new way of looking at Electron-Positron annihilation.展开更多
英国语言学会(LAGB)1990年春季年会于4月3日至4月5日在剑桥大学举行。Jerry A.Fodor在全体会议上作了题为 Modularity in parsing(解析的组合性)的演讲。年会接受正式论文35篇、预备论文3篇,内容涉及到句法学、语义学、语用学、形态学...英国语言学会(LAGB)1990年春季年会于4月3日至4月5日在剑桥大学举行。Jerry A.Fodor在全体会议上作了题为 Modularity in parsing(解析的组合性)的演讲。年会接受正式论文35篇、预备论文3篇,内容涉及到句法学、语义学、语用学、形态学、音位学、心理语言学等。句法学方面的论文最多,大都涉及到指代问题(anaphora)。其中讨论空范畴的有J.展开更多
文摘This paper proposes an original behavioural finance representative agent model,to explain how fake news’empirical price impacts can persist in finance despite contradicting the efficient-market hypothesis.The model reconciles empirically-observed price overreactions to fake news with empirically-observed price underreactions to real news,and predicts a novel secondary impact of fake news:that fake news in a security amplifies underreactions to subsequent real news for the security.Evaluating the model against a large-sample event study of the 2019 Chinese ADR Delisting Threat fake news and debunking event,this paper finds strong qualitative validation for its model’s dynamics and predictions.
文摘The recent IPCC-SREX report focuses on the impact of extreme weather events on societies and underlines the absence of reliable data to assert a solid link between them and the current global climate change. Thanks to the unpublished materials that are contained in historic archives, this article suggests studying the cyclones which affected the Mascarene islands between 1654 and 2007 and which supply us with a catalog of hitherto unpublished events. Inspired by the Simpson-Saffir hurricanes Wind Scale, the research proposes a relative evaluation of the extremes of the region. It underlines the big fluctuations in the last three centuries and partially answers the current debate on the reliability of the data in relation to hurricanes and their link with the contemporary climate. The available archives show that this type of meteorological event has occurred frequently during the relevant historical period and that for that reason, has given rise to original strategies of adaptation on the part of the societies affected. The results presented here constitute new and reliable data which could make an important contribution to the decision-makers and to climatologists trying to design strategies which the populations of small islands facing the climatic hazards of the future will have to adopt.
文摘A model universe is hypothesized where gravity is developed to take on the qualities of electrostatics. This necessarily breaks the Einstein Equivalence Principle where gravitational and inertial mass may vary. We are told that gravity and electromagnetism were unified in the earliest moments of the universe. Perhaps they are still unified today and the EEP is broken at the small scale. This paper shows a possible way how. For simplicity Newtonian Mechanics [1] are used throughout which means that formulae are only valid in the low mass, low speed limit. For high mass or high speed please refer to General Relativity [2]. Gravity is developed in the following sections: 1) Model A is attractive;standard physics. 2) Model AB is attractive/repulsive;Hermann Bondi [3];3) Model ABCD is likes vs opposites;non-standard physics. Also discussed is a new way of looking at Electron-Positron annihilation.
文摘英国语言学会(LAGB)1990年春季年会于4月3日至4月5日在剑桥大学举行。Jerry A.Fodor在全体会议上作了题为 Modularity in parsing(解析的组合性)的演讲。年会接受正式论文35篇、预备论文3篇,内容涉及到句法学、语义学、语用学、形态学、音位学、心理语言学等。句法学方面的论文最多,大都涉及到指代问题(anaphora)。其中讨论空范畴的有J.
