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Stock exchange
About: Stock exchange is a research topic. Over the lifetime, 39566 publications have been published within this topic receiving 612044 citations.
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01 May 2016TL;DR: A hybrid time-series ANFIS model based on EMD based on empirical mode decomposition (EMD) to forecast stock prices in the Taiwan Stock Exchange Capitalization Weighted Stock Index and Hang Seng Stock Index is proposed.
Abstract: This paper proposes a hybrid time-series ANFIS model based on EMD to forecast stock price.In order to evaluate the forecasting performances, the proposed model is compared with other models.The experimental results show that proposed model is superior to the listing models. Time series forecasting is an important and widely popular topic in the research of system modeling, and stock index forecasting is an important issue in time series forecasting. Accurate stock price forecasting is a challenging task in predicting financial time series. Time series methods have been applied successfully to forecasting models in many domains, including the stock market. Unfortunately, there are 3 major drawbacks of using time series methods for the stock market: (1) some models can not be applied to datasets that do not follow statistical assumptions; (2) most time series models that use stock data with a significant amount of noise involutedly (caused by changes in market conditions and environments) have worse forecasting performance; and (3) the rules that are mined from artificial neural networks (ANNs) are not easily understandable.To address these problems and improve the forecasting performance of time series models, this paper proposes a hybrid time series adaptive network-based fuzzy inference system (ANFIS) model that is centered around empirical mode decomposition (EMD) to forecast stock prices in the Taiwan Stock Exchange Capitalization Weighted Stock Index (TAIEX) and Hang Seng Stock Index (HSI). To measure its forecasting performance, the proposed model is compared with Chen's model, Yu's model, the autoregressive (AR) model, the ANFIS model, and the support vector regression (SVR) model. The results show that our model is superior to the other models, based on root mean squared error (RMSE) values.
153 citations
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TL;DR: In this paper, the authors examine whether companies report risk-relevant information to prospective investors and find that the majority of the companies do not report risk relevant information to their investors, while corporate risk communication is important for the well-functioning of capital markets.
Abstract: This study examines whether companies report risk-relevant information to prospective investors. While corporate risk communication is important for the well-functioning of capital markets, our cur...
153 citations
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TL;DR: Using a complete trading history of all investors in Taiwan, Wang et al. as discussed by the authors showed that the aggregate portfolio of individual investors suffers an annual performance penalty of 3.8 percentage points.
Abstract: We document that individual investor trading results in systematic and, more importantly, economically large losses. Using a complete trading history of all investors in Taiwan, we document that the aggregate portfolio of individual investors suffers an annual performance penalty of 3.8 percentage points. Individual investor losses are equivalent to 2.2 percent of Taiwan's GDP or 2.8 percent of total personal income - nearly as much as the total private expenditure on clothing and footwear in Taiwan. Using orders underlying trade, we document that virtually all of individual trading losses can be traced to their aggressive orders; passive orders placed by individuals are profitable at short horizons and suffer modest losses at longer horizons. In contrast, institutions enjoy an annual performance boost of 1.5 percentage points (after commissions and taxes, but before other costs) and both the aggressive and passive trades of institutions are profitable. Foreign institutional investors garner nearly half of the institutional profits. Finally, the introduction of a legal lottery in Taiwan in 2002 coincided with a 25 percent reduction in turnover on the Taiwan Stock Exchange.
153 citations
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TL;DR: Wang et al. as mentioned in this paper discuss the institution of independent directors and the Independent Director Opinion specifically, as a potential solution to Chinese corporate governance problems, and argue that proponents of the independent directors misconceive the nature of the corporate governance problem in China and have not taken into account specific features of the Chinese institutional environment - particularly the legal environment - that affect the viability of any proposed solution.
Abstract: Corporate governance (gongsi zhili) is a concept whose time has come in China, and the institution of the independent director is a major part of this concept. Policymakers in several countries such as the United Kingdom and Japan have turned to independent directors as an important element of legal and policy reform in the field of corporate governance. In August 2001, the China Securities Regulatory Commission (CSRC) issued its Guidance Opinion on the Establishment of an Independent Director System in Listed Companies. Covering all companies listed on Chinese stock exchanges (but not Chinese companies listed overseas), it constitutes the most comprehensive measure taken to date by the CSRC - or indeed by any Chinese governmental authority - to regulate internal corporate governance through the institution of the independent director.This article discusses the institution of independent directors, and the Independent Director Opinion specifically, as a potential solution to Chinese corporate governance problems. It begins by discussing special features of the Chinese corporate landscape and the most prominent problems in the area of corporate governance. It then proceeds to identify differing conceptions of what is broadly termed the independent director - the outside director, the disinterested director, and the (more narrowly defined) independent director - and discusses the approaches taken in several different jurisdictions.The article canvasses empirical research on the relationship between independent directors and corporate performance in the United States, as well as in China, and finds that the research yields similar conclusions: there is no strong link. The article concludes by arguing that proponents of the institution of independent directors misconceive the nature of the corporate governance problem in China, as well as the functioning of independent directors in the United States, and have not taken into account specific features of the Chinese institutional environment - particularly the legal environment - that affect the viability of any proposed solution.
153 citations
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TL;DR: In this paper, the effect of human and social capital (i.e., board capital) on the level of corporate social responsibility (CSR) disclosures by drawing on insights from a resource-based view was examined.
Abstract: This study examines the effect of directors’ human and social capital (i.e. board capital) on the level of corporate social responsibility (CSR) disclosures by drawing on insights from a resource-based view. It also investigates the effect of chief executive officer (CEO) power on this relationship. Data were obtained from annual reports of companies listed on the Dhaka Stock Exchange in Bangladesh from 2005 to 2013. We employ outside directors’ experiences and expertise as a proxy for board capital and measure CEO power using a ‘power index’ that comprises CEO duality, ownership, tenure and family CEO status. Results show that board capital is positively associated with CSR disclosure levels; however, CEO power is negatively associated with CSR disclosures and reduces the effect of board capital on CSR disclosures. Thus, we conclude that although board capital can improve CSR practices, CEO power can also inhibit these practices.
153 citations