Laspeyres Decomposition Model of Industry Atmosphere Pollution and Its Implication

摘要

Based on I-O analysis method，the article adopts Laspeyres model to decompose the change of three atmosphere pollutions in thirteen industry departments to three effects between the year 1997 and 2002. The results are: technological effect decreases the emission of all three atmosphere pollutions; final demand structure effect increases the emission of SO2 and soot, but decrease the release of powder; final demand volume effect increases the emission of all the three atmosphere pollutions. So the best selection to decrease pollutions is the development of technology.