Ratio K: a New Way of Metering and Evaluating the Risk and Return of Stock Investment

Although widely used, both the Markowitz model and VAR (Value at Risk) model have some limitations in evaluating the risk and return of stock investment. By the analysis of the conceptions of risk and return, together with the three hypotheses of technological analysis, a novelty model of metering and evaluating the risk and return of stock investment is established. The major indicator of this model , risk-return ratio K, combines the characteristic indicators of risk and return. Regardless of the form of the risk-return probability density functions, this indicator K can always reflect the risk-return performances of the invested stocks clearly and accurately. How to use the model to make optimum investment and how to make portfolio combined with clustering analysis is also explained.

The Association Between Corporate Governance Mechanisms and Stock Investment Risk： Empirical Evidence From Thailand

This study examines the association between corporate governance mechanisms （i.e., internal corporate governance, ownership structure, and external corporate govemance） and stock investment risk （i.e., idiosyncratic risk, systematic risk, and total risk of non-financial listed firms in Thailand in 2007）. The multiple regression analysis is employed to test the hypotheses, and the results suggest that firms with higher market power have lower systematic risk. It implies that firms with higher market power can reduce the unavoidable risk when compared with firms that have lower market power. Firms with more media coverage will have higher systematic risk, which indicates that firms which publish more news will have higher unavoidable risk. This research may be the first to provide the evidence of the association between corporate govemance mechanisms and stock investment risk. Interestingly still, this study has utilized the data of Thailand, which is an emerging market economy with a capital market structure different from those of the developed market economies, and the results of this study are anticipated to be applicable to other similar studies in other emerging market economies.

REGULATIONS ON THE ALTERATION OF STOCK EQUITY HELD BY INVESTORS OF FOREIGN INVESTMENT ENTERPRISES

Article 1With a view to promoting the healthy development of foreign invest-ment enterprises, protecting the legitimate rights and interests of investorsof the parties concerned and safeguarding the social and economic order,this set of regulations has been formulated in accordance with the Com-pany Law of the People’s Republic of China,Law of the People’s Republicof China on Chinese-Foreign Equity Joint Ventures,Law of the People’sRepublic of China of Foreign on Chinese-Foreign contractual Joint Ven-tures,Law of the people’s of China of Foreign Capital Enterprises,andother relevant laws and regulations.Article 2The alteration of investors’stock equity in foreign investment enter-prises as used hereof refers to the alteration of investors or theirshares(hereinafter referred to as the stock equity) of financialcontribution(inchiding the cooperative conditions offered) in Chinese-for-eign equity joint ventures,Chinese-foreign contractual joint ventures andforeign investment enterprises(hereinafter referred to as the enterprises).

Electroencephalographic Activity Associated to Investment Decisions: Gender Differences

Literature in finance and neurosciences shows that male and female differ in many relevant issues concerning financial decision investment. Here, we studied the EEG activity recorded while volunteers were playing a stock trading game to investigate these gender differences. 20 males and 20 females made 100 trading decisions using a portfolio of 200 shares of 7 different companies. Males and females were equally successful in earning above the market. sLORETA was used to identify sources of EEG recorded 2 seconds before trading decision. Results showed that male and female used different sets of neuron to make equally successful financial decisions.

Permission Doesn＇t Mean Interest

As a bid to ease its mounting forex reserves, the State Administration for Foreign Exchange （SAFE） issued rules on August 20 allowing domestic Citizens to directly trade overseas securities. The state will first run a trial in Hong Kong before opening up further markets to Chinese investors.