The International Vertical Specialization And The Emissions Of CO₂Based On The Industrial Industries Of China

In recent years, China has seen a period of rapid economic growth, especially theindustrial industries. But in accordance with the law of economic development mode,it is still difficult to get rid of the traditional path of industrialization such as Europeand the United States, during which the demand and dependenceis for energy and rawmaterials are enhancing, and the contradiction between the environmental constraintsand the industrial acceleration is growing. With the voices of the world, theenvironmental protection and the reduction of pollution emissions growing, China asa developing country must also take the initiative to take on the important task ofenergy saving and emission reduction, which makes China into the dilemma betweena high-speed increase of economy and the improvement of environmental quality.Vertical specialization acts as the main method through which industrial industriesparticipated in the international division in China, but it is to be studied that thesolution of the conflict in the industrialization of China could be provided.This paper respectively measured the emission of CO₂and the level of verticalspecialization of the industrial industries in China from1997to2010byenvironmental input-output model and HIY method. Environmental input-outputmodel from the perspective of the correlation and recycling among industriescomprehensively weight the trend of pollution emissions, which showed that CO₂emission of industrial industries in China was still increasing, but the growth rate wasslowed down. HIY method proposed by Hummels （2001） from the perspective of theimport of intermediate products weight the level of vertical specialization whichshowed that the level of vertical specialization had almost the same trend as theemission above, and exceeded the developed countries such as Europe and the UnitedStates, but still had a gap with emerging markets such as South Korea.Then we explored the way of the vertical specialization on pollution emission inthe respect of the industrial structure, technological spillover and factor endowmentsand established the econometric model which from the industry heterogeneitydeepened the relationship between the vertical specialization and pollution emission.This paper made regression by the least squares method （OLS）, quantile regression（QR） and threshold-effect model and drew the conclusion as below: economic growthand CO₂emission showed the inverted U-shaped distribution; vertical specialization had the promoting effect on pollution emission while there are differences amongindustrial industries with different characters, which includes the size of enterprise,efficiency of energy, trade openness, strength of capital, pollution intensive, capitalintensive, labor intensive and the level of vertical specialization. Finally, we couldoffer the corresponding policy recommendation from the characters of industry andindustial layout based on the conclusion of the empirical analysis.