| If economy society is considered as a system, Industry will be its very important and basic sub-system, because industry aggregation composes the whole national economy. Industry has its own functions; in addition; it has tight relationship and important influence with the whole economy society and other components, which compose the economy society. Industry development, industry structure and industry policy compose the main issues of industry studies. Considering from the aspect of studies, the issues like industry structure and industry policy are always one of the Top10 issues of Chinese economy studies in recent years.The most direct purpose of industry development is to drive the development of economy; therefore, analyze the influence of industry development to economy is the foundation. Employment issue is not only an economic problem, but also a social problem and even a political problem; therefore, it is necessary to analyze the influence of industry development to employment. Although the influence of industry development to the environment rises in many aspects, as the environment pollution is getting worse, there is practical meaning to analyze the influence industry development to environment pollution. As a result, the essay will make quantity analysis from the direct influence of industry development to economy, employment and environment pollution, and mutual influence among different industries.The main contents of the essay:(1) The influence of industry development to economyThe essay will use various quantity methods to analyze the influence degree of each industry development to economy. Firstly, check the relativity of each industry development and economy development to explain that industry development has close correlation with economy development. Secondly, illustrate the contribution of each industry to economy from various spots through the result of industry contribution rate and pulling rate. Finally, elasticity is used to analyze the influence of industry development to economy. Choose the calculation method of industry elasticity and calculate the elasticity of each industry to reflect the influence degree of each industry development to economy from the whole analysis period.(2) The influence of industry development to employmentThe essay will analyze the influence of the industry to employment from different aspects. Firstly, analyze the influence of the industry to employment from the aspect of history and reality. Get the direct employment rate, indirect employment rate and integrated employment rate of each industry by using input-output analysis method through examining the contribution rate and pulling rate of industry to employment to reflect the influence degree of each industry development to employment. Secondly, examine the employment potential from future aspect, and predict the labor force quantity of each industry by using various methods to reflect employment situation of industry in the future.(3) The influence of industry development to environment pollutionThe essay will use six indexes, which are wastewater, exhaust gas, sulfur dioxide, smoke, dust and solid waste to show the situation of environment pollution. Firstly, analyze the correlation degree between indexes and industry output. Secondly, calculate the draining intensity of each industry. Finally, analyze draining rate of industry by using input-output method. According the result above, the influence degree of industry development to environment pollution will be analyzed.(4) Mutual influence among industriesIndustries influence each other as they have certain relationship. Industry not only can influence the development of economy society as direct influencer, but also influence the development society economy indirectly through the influence to other industries. It is necessary to examine the influence among industries. The essay will analyze from output influence and R&D spillover effect among industries. Output influence among industries means the influence of one industry's output to other industries' output. The essay will analyze from the induction degree and influence, and use input-output method as basis to calculate the driving effect of industry, and thereby reflect the influence degree among industries.The development of industry needs innovation, and the input of R&D is the important inflection of innovation. The result of R&D input can be weighed through the outflow effect among industries. The essay will use input-output as basis to calculate R&D outflow effect among industries.According to the analysis, the essay states that the same industry will have different influence degree to one aspect of economy society in different period, and the development of different industries will have different influence to the economy, employment and environment pollution in one same period; therefore, industry development has dynamic influence on economy society. Relative decision-makers or decision-making organizations should understand and know the influence degree of industry development to economy society, and only in this way, they can establish practical and effective industry policy and make industry development better promote the development of entire economy society.
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