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On-line portfolio selection has attracted increasing interests in machine learning and AI communities recently. Empirical evidences show that stock's high and low prices are temporary and stock price relatives are likely to follow the mean reversion phenomenon. While the existing mean reversion...
Persistent link: https://www.econbiz.de/10010600004
Online portfolio selection is a fundamental problem in computational finance, which has been extensively studied across several research communities, including finance, statistics, artificial intelligence, machine learning, and data mining, etc. This article aims to provide a comprehensive...
Persistent link: https://www.econbiz.de/10010659665
Drawdowns measuring the decline in value from the historical running maxima over a given period of time, are considered as extremal events from the standpoint of risk management. To date, research on the topic has mainly focus on the side of severity by studying the first drawdown over certain...
Persistent link: https://www.econbiz.de/10010747630
In this paper, we follow Jegadeesh and Titman's (1993, Journal of Finance) approach to examine 25 momentum/contrarian trading strategies using monthly stock returns in China for the period from 1994 to 2007. Our results suggest that there is no momentum profitability in any of the 25 strategies....
Persistent link: https://www.econbiz.de/10009483361
We test conditional consumption capital asset pricing models (CCAPMs) in the Australian equity market. The conditional variables used are Lettau and Ludvigson’s (2001a, b) consumption–wealth ratio, Campbell and Cochrane’s (1999) surplus consumption ratio and Santos and...
Persistent link: https://www.econbiz.de/10011135751
Due to advantages such as high energy density, high power density, rapid charge and discharge, high cyclic-life, and environmentally friendly, flywheel energy storage systems (FESs) are widely used in various fields. However, the performance of FES systems depends on the performance of a high...
Persistent link: https://www.econbiz.de/10011261289
This paper investigated a 12-slot/11-pole flux switching permanent magnet (FSPM) machine used for electric vehicles (EVs). Five novel rotor teeth shapes are proposed and researched to reduce the cogging torque and torque ripple of the FSPM machine. These rotor teeth shapes are notched teeth,...
Persistent link: https://www.econbiz.de/10011093804
We investigate whether effective corporate governance mechanisms help improve firm-level community engagement activities, using a sample of Australian mining companies for the period 2005–2013. We firstly document that effective board structure and functionality positively contribute to mining...
Persistent link: https://www.econbiz.de/10011209912
Axial flux permanent-magnet synchronous machines (PMSMs) are very suitable candidates for the power train of electric vehicles (EVs) due to high power density and high efficiency. This paper researches an axial flux PMSM with radially sliding permanent magnets (PMs) to fulfill field-weakening...
Persistent link: https://www.econbiz.de/10011186332
In this paper, we propose a new drawdown-based regime-switching (DBRS) Lévy insurance model in which the underlying drawdown process is used to model an insurer’s level of financial distress over time, and to trigger regime-switching transitions. By some analytical arguments, we derive...
Persistent link: https://www.econbiz.de/10011190004