| In recent years, how to improve the corporate governance level is one of the most popular topics. The key of corporate governance is how to coordinate the benefit among stake-holders through a set of system or mechanism including formal or informal, internal or external, in order to make decision scientifically and guarantee the benefit of stake-holders. Until year 2004, many countries or organizations had formulated different corporate governance principles or mechanisms which have already obtained good effect. These countries or organizations believe that efficient corporate governance is very important to enhance efficiency and improve competitive ability.In china, corporate governance is becoming more and more important. After joined in WTO, the government must establish the system of market economy and enhance company's competitive ability. Many people believe that, the most serious question of Chinese stock market is corporate governance. Corporate governance influences not only the development of stock market but also the stock price. The experience proves that efficient corporate governance is very important to establish good restriction relation, and to straighten out different relations, to decide scientifically and guarantee the company's efficient running. So, it is necessary to research the corporate governance, and formulate efficient mechanisms to instruct company's development.This paper tries to make some contribution to the research of corporate governance. Based on the theory and practice of corporate governance of foreign countries, and think about China's reality, we put forward a set of proposals. Furthermore, we also make study on how the corporate governance improves firm value with new methods.The main structure of this paper is described as follows:Part 1: The brief review. Introduce the corporate governance concept and practice study.Part 2: Several key questions of corporate governance. Analyze the corporate governance connotations, main contradictory and key transform. First, there are four... |