Analysis Of Impact Of Mixed-identities Participant On Transaction-prices Gap

This dissertation introduces a perspective of participants with mixed identities,defines the traders who are specific images of participants with mixed identities in the commodity market,and studies the relationship between the traders and gap of the transaction prices in the market.Participants with mixed identities and gap of the transaction prices in the market are very common social phenomena.The former can be summarized as "one person plays multiple roles or one person has multiple identities",while the latter can be commonly understood as "the gap between wholesale price and retail price".Academic studies,especially in economics,have no research on the problem of mixed identities.The existing research is more based on the premise that one participant corresponds to one identity.Although some scholars have raised issues concerning mixed identities,no one has conducted in-depth theoretical research and analysis.As for the gap of the transaction prices,the existing research results are mostly empirical studies combined with specific products,such as the gap between the production price,wholesale price and retail price of agricultural products,but lack of a theory and tool that can explain and analyze the price gap in general.We try to connect the traders with the price gap,hoping to get a theoretical system that can srasp the price gap as a whole.For the analysis of traders,the research is divided into two parts:the first part is to analyze the influence of traders on the market on the basis of market design in microeconomics textbooks;The second part is the introduction of the hierarchy structure model,which is used for reference to construct the market design to accommodate the existence of traders.And the income system and cost system of traders are constructed to analyze the behavior of traders.Finally,it is found that traders with mixed identities have two main impacts on the commodity market:First,to expand the market scale;Second,to manufacture the price gap.At the same time,traders,with the gap of the transaction prices,restrain the market size and divide part of the market surplus as their own income.As for traders,the increase of the total number of levels will increase the profits of traders themselves.The relationship between the number of tradable objects and profits is affected by the specific form and composition of cost of traders.The dissertation is divided into six chapters.Chapter one introduces the background and significance of the topic selection,and initially raises the issues of mixed identities and price gap.Chapter two will further discuss the role of traders and set up the commodity market.Chapter three will discuss the influence of traders in the dual market structure,which also is the"supply-demand" market.Chapter four will discuss the influence of traders in the ternary market structure,which also is the "product-trade-custom" market.In this part,we will use hierarchy structure model to build a commodity market in which producers,traders and consumers coexist.In chapter five,we will finally conclude how to view the price gap in the market after introducing the role of trader,and discuss the influence of" e-commerce" trading on traders.Finally,in chapter six,we will briefly discuss the possible research prospects after the introduction of the concept of participants with mixed identities.