Reform of China’s IPO Mechanism: Enhancing Efficiency and Optimizing the Market Ecosystem

A well-developed financial market system is crucial for supporting high-quality development in the new era.Initial Public Offerings(IPOs)are essential for enabling financial markets to facilitate new industrialization while accelerating the development of a manufacturing powerhouse.Therefore,research on IPO mechanism reform holds significant practical implications.This paper examines the impact of China’s IPO mechanism reform by studying the equilibrium relationship between the primary market and the lending market.Using empirical analysis,we compare the average return on online subscriptions for newly listed shares using the risk-free rate before and after China’s 2015 IPO mechanism reform,as well as analyze the underlying mechanisms driving excess returns during both periods.Our findings indicate a gradual alignment of returns in the primary and lending markets,with institutional arbitrage opportunities between them diminishing.The reforms have effectively enhanced market mechanisms,improved pricing capabilities,rationalized participant behavior,and optimized the securities market ecosystem.These improvements have contributed to the market’s equilibrium and enhanced the market’s ability to interpret information.However,further improvements to the IPO mechanism are necessary,including deeper market-oriented reforms,standardization of participant behavior,acceleration of a comprehensive registration system,and stronger information disclosure and quality management.

Efficiency evaluation and optimizing implementation strategy of green renovation market in existing residential areas in China

The key to the healthy development of the market for green renovation of existing settlements lies in effectively playing the role of market resource allocation,and scientific evaluation of the current market operation efficiency is a prerequisite for the optimization and adjustment of market operation.Based on the perspective of market operation effectiveness,we start from the connotation and significance of the evaluation of the operation efficiency of the market of green renovation of existing settlements,construct the evaluation index system of the operation efficiency of the market of green renovation of existing settlements,use the hierarchical analysis method(AHP)and fuzzy comprehensive evaluation method(Fuzzy),establish the fuzzy comprehensive evaluation model,and finally,based on the operation process reengineering,financing model innovation,service platform expansion and market environment improvement,it structures the operation improvement path of the green renovation market of existing settlements and promotes the orderly operation of the green renovation market of existing settlements.

A Literature Review about Demonstrating Whether China＇s Stock Market Has Reached Weak-form Efficiency

The efficient Market Hypothesis divided the stock market into three parts： weak-form efficiency, semi-strong-form efficiency, and strong-form efficiency. There are so many scholars have conducted researches on whether China＇ s stock market has reached weak-form efficiency. The author of this literature review summaries the results of these researches and makes a systematic induction. This article attempts to show the achievements of these researches and ~ive readers new ideas about how to improve China＇ s stock market efficiency.

The Efficient Market Theory and Mergers and Acquisitions （M＆As） Puzzle： Evidence From Italy

The efficient market theory is a central point in finance. If the capital market is competitive, the investors cannot expect superior gains from their investment strategies with respect to the risk profile. Event studies are an approach to verify the impact of the information on the stock prices. In an efficient market, stock prices should fully, promptly, and quickly capture all the information. Instead, the market shows phenomena of an under-reaction and over-reaction for both the short and the long run. The mergers and acquisitions （M＆As） are examples of anomalies. Often, the bidder companies record the negative abnormal returns for both the short and the long run. In contrast to the efficient market theory, the empirical evidence shows that this phenomenon is widespread in all （or most of） the countries of the world. This work examines the long-run performance in M＆As. For this purpose, 40 bidders were observed in Italy during the period of 1994-2008 among listed companies. The buy and hold abnormal returns （BHARs） methodology was used, with which it was possible to observe the returns for three years following the deal.

The Identifying of the Efficient Market Portfolio

The capital-asset pricing model （CAPM） discovered by Sharp （1964）, Lintner （1965） and Mossin （1966） is a general equilibrium model. It not only allows improved understanding of market behavior, but also provides practical benefits. At the same time, it also provides a practical mechanism for evaluating performance in a risk-adjusted mode. This model thus provides the initial basis for the practical implementation of the many aspects of portfolio analysis. However, Richard Roll （1977） has directed some biting criticism at the tests in affirming the CAPM. This criticism is aimed at one of the critical notions-the identifying of the efficient market portfolio. This paper solves the highly difficult problem by a geometrical way. It first denotes the efficient frontier of Markowitz model with the weights vector of portfolio. Then, it denotes the capital market line （CML） with the weights vector too. By the definition of the CML, the efficient market portfolio thus can be identified.

The Importance of Small and Medium Enterprise Development for Efficient Global Market Environment

Small and medium enterprises(SMEs)play an important role in the world economy.Modern trends in the development of small and medium enterprises imply a constant increase in their role in the total income of an economy.For such an approach,it is important to achieve quality organizational and managerial concepts of planning strategy development.In many countries,small businesses dominate in the production of a number of smaller products,higher consumption,and high quality of these products.The concept of a small economy consists of a group of companies that stand out in terms of their characteristics in relation to large companies.In relation to large companies as business systems,SMEs differ based on the concept of their own organization’s business,the volume of business,and the availability of resources.Research data show that the main obstacle to efficient continuous business of SMEs in the world is the procurement and maintenance of business resources.Ensuring continuity in production is often a problem of lack of resources,which primarily characterizes them in relation to large companies.Small business and entrepreneurship are the main backbone of today’s economic development,viewed globally.The purpose of the development of small and medium enterprises in the world is to enable the development of a successful and flexible entrepreneurial climate as an important organizational determinant,which is a prerequisite for progress in the modern world economy.The feature of SME development is the innovation of employees that needs to be constantly developed.In that way,conditions are provided for technological development,formation of flexible organizations,and new employment.In practice,small and medium enterprises are the engine of economic development.It is a sector that promotes private property and entrepreneurial skills.According to experts on economic issues,SMEs are today and in the future,not only in Serbia,the Region,but also in the world,a synonym for the private sector-for entrepreneurship.Comparative analysis shows the advantage of SMEs,especially in flexible business,where they can quickly adapt to change and can fully meet market demands.

An Empirical Analysis of the Efficient Market Hypothesis in China's Stock Market

The efficient market hypothesis is one of the most important theories in finance.According to this hypothesis,in a stock market with sound laws,good functions,high transparencies,and extensive competitions,all valuable information is timely,accurately,and fully reflected in the trend of stock prices including the current and future values of enterprises.Unless there are market manipulations,it would be impossible for investors to gain more above the average profits in the market by analyzing former prices.Since the efficient market hypothesis has been introduced,it has become an interest in the empirical research of the security market.It is one of the most controversial investment theories and there are many evidences supporting and also opposing this hypothesis.Nevertheless,this hypothesis still holds an important status in the basic framework of mainstream theories in modem financial markets.By analyzing simulated investment transactions in regard to stock trading of three different enterprises,this paper verified that the efficient market hypothesis is partially valid.

Network efficiency analysis of Chinese inter-bank market

The inter-bank market network models are constructed based on the inter-bank credit lending relationships, and the network efficiency characters of the Chinese inter-bank market are studied. Since it is impossible to obtain the specific credit data among banks, this paper estimates the inter-bank lending matrix based on the partial information of banks. Thus, directed network models of the Chinese inter-bank market are constructed by using the threshold method. The network efficiency measures and the effects of random attacks and selective attacks on the global efficiency of the inter-bank network are analyzed based on the network models of the inter-bank market. Empirical results suggest that the efficiency measures are sensitive to the threshold, and that the global efficiency is little affected by random attacks, while it is highly sensitive to selective attacks. Properties such as inter-bank market network efficiency would be useful for risk management and stability of the inter-bank market.

How to compare market efficiency? The Sharpe ratio based on the ARMA-GARCH forecast

This paper derives a new method for comparing the weak-form efficiency of markets.The author derives the formula of the Sharpe ratio from the ARMA-GARCH model and finds that the Sharpe ratio just depends on the coefficients of the AR and MA terms and is not affected by the GARCH process.For empirical purposes,the Sharpe ratio can be formulated with a monotonic increasing function of R-squared if the sample size is large enough.One can utilize the Sharpe ratio to compare weak-form efficiency among different markets.The results of stochastic simulation demonstrate the validity of the proposed method.The author also constructs empirical AR-GARCH models and computes the Sharpe ratio for S&P 500 Index and the SSE Composite Index.

Efficiency of Stock Exchange Markets in G7 Countries： Bootstrap Causality Approach

Market efficiency is based on efficient market hypothesis （EMH）. EMH claims that market totally contains the available information. In case of EMH, valid investors who take position will not gain abnormal profits. If the efficiency can not be established, that is, if markets are not efficient, investors will have the opportunity of abnormal profits. This paper investigates the causality relations to determine validity of EMH among G7 （Canada, France, Germany, Italy, Japan, United Kingdom, and United States） countries＇ stock exchange markets for the period from July 2003 to October 2014. To find out whether the variables cause each other or not provides knowledge about the market efficiency. The implication of this analysis is twofold. One implication is that if the markets are informationally efficient, the possibility of abnormal returns through arbitrage is ruled out and investors can reduce the risk of their investment for the same expected returns, if they establish portfolios that consist of both markets rather than consisting of only one market. Based on this, Hacker-Hatemi-J. bootstrap causality test that is newer and has many advantages contrary to other tests was used. Results showed that EMH is valid among each G7 countries＇ stock exchange markets. Also portfolio diversification benefits exist among these markets.

Carbon trading thickness and market efficiency in a socialist market economy

Unlike the European Union emission trade system(EU ETS), China s pilot ETSs implemented diversified policy designs instead of using a uniform framework. Variance ratio test is used to evaluate the Efficient Market Hypothesis(EMH) in China's carbon trading markets. The results of two versions of variance ratio tests indicate that the carbon trading market in Hubei is considered weak form efficient, and the socialist market economy does not necessarily lead to market inefficiency in carbon trading markets. Thin trading activities generate market frictions and bias the Efficient Market Hypothesis(EMH) tests.

The effect of overseas investors on local market efficiency:evidence from the Shanghai/Shenzhen–Hong Kong Stock Connect

Using a recent stock market liberalization reform policy in China—the Stock Connect—as a quasi-natural experiment,this study examines the effect of stock market liberalization on market efficiency.Employing a dataset of 17,086 Chinese listed firms covering 2009 to 2018,we find that stock market liberalization improves the market efficiency of the Chinese mainland stock market.We further explore the potential channels through which the Stock Connect can enhance the efficiency of the A-share(A-shares refer to shares issued by Chinese companies incorporated in China's Mainland,traded in the Shanghai Stock Exchange and the Shenzhen Stock Exchange.They are denominated in Chinese RMB(the local currency).A-shares were restricted to local Chinese investors before 2003,are open to foreign investors via the Qualified Foreign Institutional Investor,RMB Qualified Foreign Institutional Investor,or the Stock Connect programs.)market.The findings show that liberalizing capital markets could benefit local market efficiency by increasing stock price informational efficiency and improving corporate governance quality.The additional analysis shows that stock market liberalization has a significant and positive impact on local market efficiency,enhancing firm value and reducing stock crash risk.We conduct various robustness checks to corroborate our findings.This study provides important policy implications for emerging countries liberalizing capital markets for foreign investors.

The Information Efficiency and Functionality Efficiency of Stock Markets

The efficiency of a stock market is principally measured by its information efficiency and functionality efficiency. Both metrics are closdy related to the information of stock markets. However, there is no uniform definition of information in the economy field since researchers may have various opinions on the information of stock markets. In this research, a comparatively strict definition of information in sense of economy is presented. Based on this definition, the optimal conditions to reach the maximum information efficiency and functionality efficiency of stock markets are derived. The conclusion is, only when the market＇s operation and information transmission mechanisms are fully effective, its information completeness degree is optimal, all investors take optimal equilibrium actions, and the information efficiency and functionality efficiency of stock markets will be optimal. Based on the conclusions, the information efficiency and functionality efficiency of reality stock markets in China are studied and the corresponding supervision countermeasures are suggested.

Cryptocurrencies,gold,and WTI crude oil market efficiency:a dynamic analysis based on the adaptive market hypothesis

This study examined the evolving oil market efficiency by applying daily historical data to the three benchmark cryptocurrencies(Bitcoin,Ethereum,and Ripple),gold,and West Texas Intermediate(WTI)crude oil.The data coverage of daily returns was from August 2015 to April 2019.We applied two alternative tests to examine linear and nonlinear dependency,i.e.,automatic portmanteau and generalized spectral tests.The analysis of observed results validated the adaptive market hypothesis(AMH)in all markets,but the degree of adaptability between the data was different.In this study,we also analyzed the existence of evolutionary behavior in the market.To achieve this goal,we checked the results by applying the rolling-window method with three different window lengths(50,100,and 150 days)on the test statistics,which was consistent with the findings of AMH.

Real estate market efficiency: Evidence from Chinese cities

The price in an efficient market can adjust to new information instantaneously to eliminate any arbitrage opportunities. Such a phenomenon is not always observed in the real estate market because of its unique characteristics, which include fixed location, heterogeneity and low transaction frequency. Using housing and office market data of some major cities in China, this paper examines the return and risk characteristics in these markets and assesses market efficiency. It finds that a number of instruments, including lagged quarterly and annual excess returns and, to some extent, the measure of the deviation of price from the intrinsic value, predict future returns. Therefore, weak form and semi-strong form efficiency can both be rejected in these real estate markets. These empirical findings suggest that there is slow price adjustment in real estate markets in China, which may be attributed to inefficient information transmission systems and long searching time in the markets.

Market efficiency of gold exchange-traded funds in India

Background:Gold exchange-traded funds,since introduction,are primarily aimed at tracking the price of physical gold in the financial market.This,a category of exchange-traded funds,whose units represent physical gold,is traded on exchanges like any other financial instrument.In the Indian financial market,gold exchange traded funds were introduced a decade ago to facilitate ordinary households'participation in the bullion market.They were also designed to assist in the price discovery mechanism of the bullion market.Presentation of the hypothesis:In this paper,it is attempted to check if one of the constituents of price discovery mechanism,informational efficiency,has been achieved in gold exchange-traded funds’market.Information efficiency becomes evident only when all available information is reflected in the market price of the instrument.Testing the hypothesis:Therefore,in order to assess the weak-form efficiency of the gold exchange-traded funds market,the daily returns of five gold exchangetraded funds traded on the Indian Stock Exchange over the period March 22,2010,to August 28,2015,were used.The non-parametric runs test,the parametric serial correlation test,and the augmented Dickey-Fuller unit root test are employed.Implications of the hypothesis:The test results provide evidence that the efficient market hypothesis does not hold for the gold exchange-traded funds’market in India.Further,the test results address several underlying issues with respect to price discovery in the market under study and suggest that the Indian market for this derivative is not weak-form efficient.Hence,the factors affecting gold exchange traded-funds’market warrant the attention of the country’s regulatory bodies,as appropriate legislation in support of market efficiency is needed.

Assessment of Pricing Efficiency and Levels of Concentration in Cashew Nuts Market in South Western Nigeria

Cashew nuts market in south western Nigeria is characterized by price fluctuations through space and time. This may be linked with the large number of market intermediaries who act between the primary producers and the markets. The sample for the study comprised 250 cashew nuts marketers who were randomly selected from the five south westem states of Nigeria. About 76 % of the cashew nuts marketers had up to secondary school education and 86% of them had 15-year marketing experience and below. Pricing efficiency of the marketers was highest in Ogun state with average efficiency level of85.1% and least for Oyo state （68.9%）. In all, 720 tonnes were transacted in the region with 206 marketers handling maximum of 2 kg per month per individual. Gini-coefficient estimate of 82.3% implied that there was a concentrated market for the cashew nuts. To further increase the pricing efficiency of the commodity it is necessary to reduce the costs incurred on various physical aspects in marketing system. Corporate organizations, government agencies and co-operative societies should assist the cashew nuts marketers in the provision of credit facilities so as to ensure a higher level of pricing efficiency, stable market prices and reduced level of concentration of the marketers.

Supply and demand subject behavior of building energy efficiency in market fostering

Consumers and developers are the market transaction subjects which drive the development of building energy efficiency market. High energy prices, unreasonable heating system, information asymmetry of building energy suppress demand of energy efficiency construction; high technical risk and construction cost, nonstandard market restrict the supply of energy efficiency construction. To promote the development of building energy efficiency, we must set up effective incentive policies for both sides of the market transaction, improve the supervisory system, promote the technological progress, build the information sharing platform, so as to achieve the purpose of cultivating and improving the building energy efficiency market system, regulating the behavior of supply and demand subject, building the mutually beneficial and cooperative partnership, and realizing the balance of interests.

Testing the Semi-strong Form Efficiency of Islamic Capital Market With Response to Information Content of Dividend Announcement： A Study in Jakarta Islamic Index

The specific concepts of Islamic capital market are based on transparency, accountability, and no asymmetric information. A capital market is said to be efficient with respect to an information item if the prices of securities fully impound the return implication of that item. This study has two main objectives. Firstly, for testing the efficiency of Islamic capital market which focuses on Jakarta Islamic Index （JII）. Secondly, by this research finding the regulator can make a good solution to create the real Islamic capital market. This study concludes that the Islamic capital market is not efficient in information. This is proved by test, where the result for both mean adjusted model and market adjusted model shows not significant, which means that the stock price that occurred has not been able to reflect a strong relationship with the real conditions that exist within the company. The second conclusion is the magnitude of abnormal return suggests that the market still has asymmetric information that will cause the occurrence of abnormal return. This is very unfortunate because Islamic capital market should be efficient in reflecting information transparency that could create a fair price in accordance with the real condition of the company＇s stock issuance.

Marketing Strategies under the Guidance of the Principle Giving Priority to Efficiency

To realize profit making as well as a steady growth, enterprises should have the marketing strategies meeting the development.In this paper, the experience of enterprise marketing is discussed through the analysis on Wanda and Baogang Group successfully applying the principle giving priority to efficiency and achieving outstanding marketing strategies, and also the problems necessary for enterprises to focus in making marketing strategies are analyzed, aiming at providing certain reference for enterprises to make marketing strategies.