All over the world, government intervention in housing market is a routine to maintain economic sustainable development and improve housing conditions, even in market economic countries. Housing policy, as an exogenous variable, will have many effects on housing market. So, we should analyze the effects dynamic of housing policies on housing market to insure accomplishment of housing policy’s prospective purposes. Housing policy includes housing supply policy and housing demand policy. The effects primarily involve efficiency, fairness, market effect and externality. The principal theme of this paper is market effects of housing policy. We find land supply constraint will tend to increase housing price and decline the housing affordability. And the government regulation and rental control will decrease the affordable housing stock for low-income households by market filtering up. Housing subsides on low-income households will give an incentive for developers to build the low-end housing in longer run. Finally, some suggestions are provided for housing policymakers.

With the economical development and improvement of people’s life level in China, building energy consumption rises rapidly. So building energy efficiency plays an important role in Chinese energy efficiency strategy. Among which public building efficiency is more important than other parts. Present the status quo of public building energy efficiency and government procurement. Discuss the crucial instruction and demonstration effects of government energy efficiency on public building energy efficiency by use of Keynesian multiplier. Synchronously consider government energy efficient procurement is one of the methods to innovate the public building energy efficiency mechanism. The government energy efficient procurement encourages the production and distribution of energy efficiency equipment and engineering. On the meantime, the goals of reducing public building energy consumption and improving the quality of indoor environment could be achieved as soon as quickly.

In today’s China, on the one hand, due to the process of rapid urbanization, the demand for building is increasing.On the other hand, because of the improvement of people’s living standard, the requirement of living condition is increasing rapidly. These two factors lead to the proportion that building energy consumption accounts for in society’s total energy use increase. Building energy efficiency becomes an important part of energy conservation. However, what is the tendency of China building energy consumption? What about the potential of building energy efficiency? This paper analyzes the demand factors of building energy efficiency, forecasts the further tendency of building energy consumption in China. Basing on this research, the author analyzes the results of implementing the measures for building energy efficiency, forecasts the potential of building energy efficiency in China, and provides the theoretical foundation for the country’s building energy efficiency policy.

Computers has been used in Chinese construction industry since 1980′s, although 95% design firms have applied 2D CAD, and compared with IT in AEC (architecture, engineer and contractor) in USA and UK, Chinese construction IT developed very slowly. What are the reasons and how to resolve it? By questionnaire surveys and interviewing directors, IT managers, officials, consumers and scholars from Chinese construction industry, the author applied qualitative approach and deductive analysis to find the key factors which influence the development of Chinese construction IT. The author concluded related research in the field and give recommendations on how to stimulate the adoption and development of IT in the Chinese construction industry from three main bodies of construction IT, which includes the R & D (research and development)enterprises in construction IT, AEC enterprises, the government and industry levels.

The statues and problems of information systems about constructing projects management in China were presented in this paper. Combining with the development of information systems about constructing projects management in USA and Singapore, the author applied analogism approach to analysis the feasibility of integrating these management information systems in China, and pointed out it is the effective way to destroy Information Islands in E-government systems. And the author gives advices about the integration ways, which include two ways: one is project (object)-oriented for the need of government management and servings; the other is services-oriented for producers and consumers.