The analysis of coupling coordination degree in the interactive development of manufacturing industry and logistics in the eastern coastal economic zone of China

Based on the theory of coupling degree function in physics, this paper sets up index system from three aspects of scale, operation and potential, formulates the model of coupling coordination degree of the interactive development between manufacturing industry and logistics, calculates and analyzes the coupling coordination degree of two industries in the Eastern Coastal Economic Zone of China. The research shows the harmonious developing level of two industries appears increasing with each passing year, logistics development isn´t falling behind manufacturing industry.