Liu Zhen-yu

Lotka-Volterra Model: New Perspectives in the Study of Homogeneity Among Internet Enterprises

This paper intends to interpret the causes of homogenization among Internet enterprises through establishing the competition model of two enterprises based on Lotka-Volterra model. The research shows that homogenization is the result of rational choice on the part of an enterprise. The characteristics of network technologies and network products/services constitute a sufficient condition under which homogenization can be fulfilled. The positive network externality of network economy is the precondition of the intensification of homogeneity. The competitive advantages of large Internet enterprises come from the differentiation based on the homogeneity.

Information Measurement Model Based on Ordinal Utility

Information measurement is based on cardinal utility whether probability information measurement or grammatical information measurement, or uncertainty information measurement. But for managers, they care about the value of information for decision-making, not what quantity of information itself. The article uses ordinal utility theory to measure information, and to sort of information utility, thereby reduces the complex and cumbersome calculation process of information for decision-making in management.

Research of Transaction Request Handling Queueing System in the e-Business Environment Based on Queuing Theory

This study set up mathematical and simulation models to analyze and evaluate the efficiency impact brought by the variation of the transaction request queuing system in the e-Business environment based on queuing theory. The theoretic conclusion and simulation output have proved that the structural adjustment of queuing systems in the e-Business environment can reduce customer mean waiting time along with the simplicity of input and output of documents, and then improve customer service experience. This article had also studied a more common situation of customer arrival which has the characteristic of peak period distribution. The simulation result indicates when the customer interarrival times have the characteristic of peak period distribution, the decreased mean waiting time brought by the structural adjustment of queuing system in the e-Business environment is prominently less than the negative exponential distribution, and the efficiency improvement of request handling has been reduced, but the conclusion is still tenable.

An Empirical Analysis on the Relationship between Chinese Economic Growth and Inflation During 1953-2007

This paper focuses on doing an empirical analysis on the relationship between the Chinese economic growth and inflation by using the econometric models of ARDL, VAR and VECM during the three different periods of 1953-1978, 1979-2007 and 1953-2007. The empirical analysis has achieved four results. Firstly, it has approved that the structure relation between the Chinese economic growth and inflation has been changed since 1979. Secondly, the correlation between the Chinese economic growth and inflation was substantial negative during 1953-1978; however, it became substantial positive during 1979-2007. Thirdly, there was not any Granger causality relation between the Chinese economic growth and inflation during 1953-1978, but there was a two-way Granger causality between them during 1979-2007 in the short run and long run. Finaly, the unequilibrium between the Chinese economic growth and inflation could be adjusted during 1979-2007, but it was inversely during 1953-1978.

An Empirical Analysis on the Chinese Long-Run Accumulative Phillips Curve During the Period of 1979-2008

By analyzing the history of traditional Phillips curves, this paper criticizes that the prior studies of Phillips curve have ignored the accumulative effect of economic growth and inflation on a particular economy. By doing an empirical analysis on Chinese economy during 1979-2008, this paper has got three results: Firstly, it defines a variable of ideal real GDP growth rate and a variable of ideal CPI. When considering the accumulative effects of the economic growth rate and inflation rate, it approves that the accumulative ideal real GDP growth rate can be used as the ideal potential accumulative real GDP growth rate, and the accumulative ideal CPI can be used as the ideal natural accumulative CPI. Secondly, it constructs an accumulative Phillips curve. When considering the cross accumulative effects, it approves that the accumulative Phillips curve is good fitted to the relation between the accumulative real GDP growth rate and accumulative inflation rate. Finally, it creates a prediction mechanism. When comparing the prediction results of four models, it approves that the Chinese real GDP growth rate will be about 7.15% in 2009 and 9.59% in 2010, and the Chinese CPI will be about -1.40% in 2009 and -8.55% in 2010.

An Empirical Analysis on China's Economic Coordination and Deflator Coordination during 1953-1978 and 1979-2005

This article does an empirical analysis on Chinapsilas economic coordination and deflator coordination during 1953-1978 and 1979-2005. Firstly, we have introduced the concepts of the coordination theory and coordination coefficient. Secondly, we have defined the models of economic coordination coefficient and deflator coordination coefficient for seven main industries and the urban consumer price index and the overall retail price index. Finally, the empirical analysis has found that in averagely when the growth rate of GDP was greater than 7% and less than 11.28% during 1953-1978 or when the growth rate of GDP was greater than 7% and less than 10.61% during 1979-2005, not only did the Chinapsilas aggregate economy can possess a continuously and moderately higher level of growth rate, but also the Chinapsilas aggregate economy could possess a lower level of deflator. Our research suggests that for maintaining Chinapsilas aggregate economy to keep on developing continually and moderately at a higher level of growth rate and a lower level of deflator, the growth rate of GDP should be greater than 7% and less than 10.61%.

Analysis on China's Economic Growth and Inflation During 1953-2004

This paper focuses on discussing the relationship between Chinas economic growth and inflation during 1953-2004 by using an empirical analysis. The study has found that the increase of the inflation rate would increase the nominal growth rate of industries, but it would decrease the real growth rate of industries; the inflation would stimulate the growth of primary, whole and retail industries; for maintaining the economic growth steady, the inflation rate should not exceed 3%.

Analysis on Economic Fluctuations and Coordination in China

Based on the coordination theory, this paper is aimed at analyzing the issues of Chinas economic fluctuations and coordination during 1954-2004. It has got two important results. Firstly, it has identified the total 13 economic cycles in Chinas economy during the 51 years. It has shown that 5 long economic fluctuations lasted more than 5 years, 4 short economic fluctuations lasted only two years, whereas other 4 middle economic fluctuations lasted 3 or 4 years. Secondly, it has defined two concepts of coordination coefficient and non-coordination coefficient. From comparing the ratios of the growth rate of the primary, second and tertiary industries to the aggregate GDP, the paper has discussed whether the Chinas economic growth is coordination or non-coordination between industries. It has found that the coordination between industries is significant for the development of Chinas economy. It suggests that the economic decision making is to maintain the coordination between industries.

Analysis of Coordination between Tax Revenue and Macroeconomics in China

Based on the coordination theory of Thomas W. Malone, this paper has created a tax revenue coordination coefficient and used it to do analysis on coordination between macroeconomics and the tax revenue in China by comparing Chinas macroeconomic fluctuations to the tax revenue fluctuations. Firstly, the paper has managed to separate all of the fluctuation cycles from each other by calculating and comparing the growth rates and their first and second derivatives of Chinas macroeconomics and the tax revenue in discrete during 1954 to 2004. Secondly, the paper focuses on analyzing whether the growth rates were in sync or unsync between Chinas macroeconomics and the tax revenue during 1954 to 2004. The analysis has found that Chinas macroeconomics and the tax revenue were in sync during 1954 to 1976 and unsync during 1977 to 2004. Thirdly, the further analysis has found that it does not mean coordination development between macroeconomics and the tax revenue even though there were sync growths between them during 1954 to 1976 and it does not mean uncoordination development between macroeconomics and the tax revenue even though there were unsync growths between them during 1977 to 2004. The paper finally has found that there were tax overload during 1977 to 2002 by comparing to the growth rates of macroeconomics. The paper suggests that the coordination between macroeconomics and the tax revenue should be a basic rule when make the tax policy in the country.