A Simple-Economical Analysis Of The Composite Input Of Set Commodities

In view of the problem of composite input costs of set commodities, this paper analyzes the influence of"sets"commodities on consumption input cost and production input cost; summarizes the concepts of set commodity, composite input, complete composite input, and composite input cost. It further on puts forward the economical principles of realizing the minimal cost by a fast, simple and natural input mode. Based on set theory and set-valued analysis method, the paper focuses on the simple-economical input of set commodities in composite input system. It probes into the respective economical conditions of composite input and composite input system. By applying the findings of the study into the analysis of the influence of McDonald's sets on consumption input, this paper has found the coaxial structure of McDonald's sets and the economical feature of McDonald's service system. This study has solved the problem of composite input cost computation of set commodities under composite input condition when in various input mode of common input, as well as the economical problems of common composite input and common composite input system. The contributions and innovations of the study are: first, it has worked out the cost surplus calculation formula of the set commodity when in different composite input modes and has made possible the expression of composite input cost via the cost surplus of set commodity input; second, it has abstracted, from various"possible"and"natural"input modes, the reasonable, convenient and applicable"simple-economical"input concept, based on quantitative analysis of set commodities'different types of composite input; third, it has combined the calculation of classic set theory and that of fuzzy set values and has established an simple-economical analysis of set commodities'composite input; fourth, it has applied this simple-economical analysis into the discussion and verification of the economical conditions of set commodity composite input and composite input system; fifth, it has introduced lattice theoretic method and fuzzy topology method into composite input system's association study and has reduced the economical problem of common composite input system into the economical problem of its associated subsystems.The study has employed traditional set theory methods such as set operation, equivalence relation, equivalence partition in its economic analysis. Combining the classic set theory with the modern quantitative analysis, it has studied the quantitative relationships among the set commodity structure, input function structure and composite system price system in the set commodity composite input system. The study has catered to the new tendency of set commodity's development in different industries, enriched the theoretical content of economic analysis, and widened the application space of classic mathematical theories in management research.