Vertical Scale Of China's Listed Companies And Stock Price Appreciation Correlation Study

Enterprise scale and economies of scale whether relevant between? If there is a consistent? Focus on this issue has been controversy over.ZhangYuanZhi think enterprise scale should be divided as horizontal scale and longitudinal scale,Enterprise longitudinal scale is bigger, economic efficiency may be poorer,Then put forward enterprise longitudinal scale economic conjecture.As a universal significance, the theoretical propositions,Multiple Angle, deserve an empirical test of the support. This paper attempts to choose an empirical test of profiles, to test this proposition. The author of my choose 50 was based on evidence 50 Shanghai listed companies as samples, respectively indicating that the enterprises operating in areas where the Herfindahl index Du (H) and that product relatedness Degree of rate (RR) as measured two indicators of vertical scale, with a share price level as reflected in business performance indicators, these indicators were taken to establish the test model of the rate of change. In this paper, the hypothesis to be verified:the change of vertical scale changes in business performance and negative correlation. Positive test results although some statistical indicators is not very ideal, but it can support the proposed hypothesis. Therefore, "enterprise vertical scale of the economy" really exists in reality.Article is divided into five parts, the first department is an introduction, background and research methods to do simple introduction; second part describes the economies of scale for enterprises at home and abroad (especially the vertical scale) with the status quo; third part on this study design and model construction in detail and illustrated instructions; fourth is the article focuses on the use of the card stock data, an empirical test of the hypothesis; The fifth part is the research and recommendations.