Performance And Trend Analysis For The Manufacturing Industry Of Yangtze River Delta Under The Constraints Of Environmental Pollution

China's industrial development policy aims at pursuing for rapid economic growth for a long time. Environmental policy is subject to the economic growth target, resulting in low efficiency of the existing environment work and high pressure of environmental protection and control. Industrial transfer, especially manufacturing transfer, can promote upgrading of the industrial structure and achieve regional balanced development, simultaneously, it causes environment space response, leading to the total emissions of industrial wastewater, smoke,carbon dioxide and industrial solid wastes shows the increased trend year by year. Yangtze River delta, as China's most developed economy area, playing an important role in promoting China's modernization construction and economic development transformation. Manufacturing, as a driving force of the industrialization and the core of national economy in this region, has now become the main department of energy consumption and pollutant emissions.The analysis of the input-output performance and development trend of the manufacturing industry in the Yangtze River Delta under the environmental constraints will help to reveal the changes of the pollution pattern of the manufacturing industry, explore the macro-regional policy, further deepen and expand the research on the relationship between economic development and environmental pollution, So as to provide a theoretical basis for the comprehensive management and control of environmental pollution in the Yangtze River Delta region during the transition period,so as to realize the sound and rapid development of the regional economy.During the process of input-output performance evaluation, regarding competitive and cooperative strategy as the breakthrough point, this paper introduces the priorities of multi-objective programming into traditional game cross efficiency model, developing a multi-objective DEA game cross efficiency model, needed DEA game cross efficiency model for dynamics change of competitive and cooperative relationships. This model reflects the dynamics change of competition and cooperation between DMUs in different goals fully. Using this model, this paper evaluates the input-output efficiency of manufacturing Industry in Yangtze River Delta region from 2005 to 2014 under the constraints of environmental pollution, and analyzes the development state over the past 10 years.During the process of forecast, using both inequalities of the input-output relationships and the utility functions of variables as constraints, and maximizing the minimum utility of these variables as our optimization objective,this paper develops a forecasting method based on combinatorial optimization of utilities. This method reflects the inherent characteristics of data fully, and can get the optimal combination scheme of input-output variables from forecast internals. This paper applies the forecasting method to predict development trend and determine optimal combinatorial solutions of production factors for manufacturing industry in the Yangtze River Delta region from 2016 to 2020,and analyzes the development state of the next 5 years.