• Journal of the Korean Data and Information Science Society
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• v.17 no.4
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• pp.1099-1106
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• 2006

This study is an analysis of the stock trading value in terms of investor types in the Korean stock market for recent 12 years. We examined the characteristics in stock trading value variation according to each investor type and the interactive relationship in the trading value between types of investors. The results show that the trading value scale of every investor type increases overall while the proportion of the trading value by each investor type in the market exhibits variation. In addition, a statistically significant interactive relationship in the trading value between types of investors exists: the correlations are formed differently before and after events which largely influence the stock market.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.1
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• pp.285-294
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• 2021

The most basic forces of stock market are supply and demand, which increases or decreases on the basis of information. The crucial point is that investor's perception is depending on the availability of information at a particular time. But it is very difficult to understand what they take from a piece of information, and the decision varies from person to person; hence, it is important to understand the behavior of investors in the stock market. In this context, this study is focusing on behavioral investor-type diagnosis testing among financial market players (FMPs) in Oman. The study conducted a review of behavioral types among stock market investors, and attempted to assess the influence of age and gender factors on investor bias. It classifies investor type biases according to the gender and age of respondents. This study employs primary data with a structured questionnaire distributed to an equal number of male and female stock market investors in Muscat Securities Market. The study used sample t-test, one-way ANOVA, CATPCA and ALSCAL to identify the significant difference among age, gender and experience of the respondents. The present study found that all of the investors are influenced by different cognitive biases and, moreover, it depends on investor's gender.

• Management & Information Systems Review
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• v.26
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• pp.117-132
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• 2008

This study examined the individual investors' Behavior and proposed the research task how significant difference within and among investor's personality types. First of all, we investigated factors that influence individual investor's investment behavior, such as, openness, will to achieve, self-monitoring. As result investors who have lately five number of holding stock are more dependent on openness and will to achieve.

• Journal of the Korean Data and Information Science Society
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• v.25 no.1
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• pp.107-117
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• 2014

The main purpose of this study is to propose a portfolio investment strategy based on investor types information. For improvement of investment performance, artificial intelligence techniques are used to construct a portfolio. Among many artificial intelligence techniques, cluster analysis is applied to select securities and genetic algorithm is applied to assign the respective weight within the portfolio. Empirical experiments in the Korean stock market show that proposed portfolio investment strategy is practicable and superior strategy. This result implies that analysis of investor's trading behavior may assist investors to make an investment decision and to get superior performance.

• The Korean Journal of Financial Management
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• v.24 no.4
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• pp.163-199
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• 2007

This paper studies the stock market in which there are two types of investor, institutional and individual, whose information gathering and processing abilities are different. The institutional investor manages large funds and has powerful information sources. Whereas, the individual investor trades with a small amount of money and an information disadvantage. The model assumes that the institutional investor is more experienced and able to acquire relevant information earlier than the individual investor. On these assumptions, this paper shows a price continuation in the short run and a price reversal in the long run. The price continuation, or momentum, in the short run can be explained as follows. The early-informed institutional investor trades a stock, and as a result the stock price changes. Then the late-informed individual investor trades the same stock, and the stock price continues to move in the same direction in the short run. The reason for the price reversal in the long run is that since the individual investor has inferior information on the fundamental value of the stock, he tends to overreact to new information. So the stock price changes over its fundamental value initially and then regresses toward its fundamental value. In sum, both the price continuation and the price reversal are caused by the overreaction of the individual investor. The essay illustrates how these phenomena are stronger in the case where the proportion of the individual investor is higher. It also shows how the stock price goes up when the institutional investor buys a stock, while it goes down when the individual investor buys one.

• Management Science and Financial Engineering
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• v.10 no.1
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• pp.25-41
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• 2004

There have been many studies to build a model that can help investors construct optimal portfolio. Most of the previous models, however, are based upon the path-breaking Markowitz model (1959) which is a quantitative model. One of the most important problems with that kind of quantitative model is that, in reality, most of the investors use not only quantitative, but also qualitative information when they select their optimal portfolio. Since collecting both types of information from the markets are time consuming and expensive, making a set of target assets smaller, without suffering heavy loss in the rate of return, would attract investors. To extract only desired assets among all available assets, we need knowledge that identifies investors' preference for the risk of the assets. This study suggests two-layer decision-making rules capable of identifying an investor's risk preference and an architecture applying them to a quantitative portfolio model based on risk and expected return. Our knowledge-based portfolio system is to build an investor's preference-oriented portfolio. The empirical tests using the data from Korean capital markets show the results that our model contributes significantly to the construction of a better portfolio in the perspective of an investor's benefit/cost ratio than that produced by the existing portfolio models.

• Management & Information Systems Review
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• v.34 no.1
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• pp.65-80
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• 2015

In previous studies concerning turnover, they argue individual stock's turnover must be identical to market portfolio's turnover under one condition where 2 funds separation theorem holds. In this kind of world, all market participants hold and trade the same portfolio and this should be only market portfolio. If one's trading portfolio's shape is different from market portfolio's, this would mean he or she has an advantage over others in information and this kind of information would be private. In accordance with this theory, we develop a metric which measures how far one's trading portfolio from market's and name it as Stock Selection by Investor(SSI). We apply this measurement to the various types of investor groups classified as individual, institutional and foreign who participate in Korea stock market. To test the validity of measure, we regress price ratio on this measurement using SUR method. As a result, individual investor group shows large number in SSI, but the coefficient in regression is not significant and economically meaningless. In case of institutional investor group, the coefficient proves to be significantly negative. We can infer from this fact that their trading is somehow far from informed trading. Stock selection activity by foreign investor groups proves to be informed trading by showing significantly positive coefficient and the magnitude of coefficient is economically meaningful, especially in sell activity.

• Journal of Arbitration Studies
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• v.24 no.1
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• pp.25-44
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• 2014

Conflict between transnational environmental issues and foreign investment in capital-importing states can be commonly found. Actually, several investor-state dispute arbitration cases like Bilcon v. Canada, S.D. Myers v. Canada, and Metalclad v. Mexico concerned environmental matters. States are worried about their measures for securing the environment might be deemed to go against international investment agreements and foreign investors also are anxious because of excessive regulations. Against this backdrop, stakeholders attempt to strike a balance between securing foreign investment and preserving the environment. This article argues that the investment chapter of the Korea-US FTA tries to solve environment-investment collision in investor-state disputes. Before analyzing the provisions of the investment chapter most relevant to environmental issues, this article points out the most typical types of environmental clauses included in international investment agreements. The investment chapter of the Korea-US FTA has provisions which effectively prevent measures from becoming useless when those measures are legitimate measures relevant to environmental matters. This does not mean that the Korea-US FTA completely solves the conflict between environmental issues and the protection of foreign investment, but still it paves the way for a prudent solution which would hash out this thorny problem.

• Journal of the Korean housing association
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• v.26 no.6
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• pp.43-52
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• 2015

The purpose of this study was to explore housing value clusters of young renters in South Korea and their relationships to household and housing characteristics reflected in the 2012 Korea Housing Survey (KHS). The 2012 KHS microdata was used as secondary data. Among the households included in the microdata, 1,196,144 young renter households (between 20 and 34 years of age) in private rental units were analyzed. The main findings are as follows. Ten rating scale items measured housing values. Eight of them were grouped into three value factors: Investment, Affordability and Cost Increase. Using these three value factors and perception of homeownership, households were classified into four clusters: Prospective Home Investor, Settled Renter, Homeowner Wannabe, and Support Needed. The current tenure types, income and expectation for next tenure types of four housing value clusters of young renters reflected Korea's tenure ladder which has home ownership at top followed by Jeon-se rental, monthly rental with deposit and monthly rental without deposit. The households in Prospective Home Investor and Homeowner Wannabe clusters would consider home purchase in the near future. Finally, households in Support Needed Cluster would be the main target to consider in development and implementation of housing welfare policies and programs to resolve housing problems of young renters, including beginning-stage professionals.

• Journal of Digital Convergence
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• v.16 no.3
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• pp.237-247
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• 2018

In this paper, a research model was designed to investigate the factors influencing the intention to the crowdfunding participator of China. The research model includes the platform factors, investor factors, and social factors, perceived ease of use, perceived usefulness and funding participants' intention. In this research, the data was collected by online survey, and in final analysis, 439 participators' questionnaires were used. The empirical paper proves research hypothesis by using SPSS 23.0. The results of the study are as follows: the crowdfunding platform factors, social factors and the participants' individual factors partially give positive effects to perceived ease of use and perceived usefulness; perceived ease of use gives positive effects to perceived usefulness. In addition, perceived ease of use and perceived usefulness have positive effects to participational intention. This paper provides a useful scheme for the better operation and promotion of crowdfunding. In the future, a comparative study of different types of crowdfunding is needed.