Research On Procurement Strategies Of Electronic Market And Value-added Function For A Supply Chain

B2B electronic market has received broad attention of academic circles since1999,and ithas expansive research prospect. On the one hand, the emergence of electronic market changesthe traditional single supply chain structure, and provides enterprises with a new sales andprocurement channels. These online market also enables enterprises to master purchasinginitiative, reduces procurement costs, and improves procurement transparency and efficiency,and optimizes procurement management process;On the other hand, it has important significanceon that functions, pushing the transformation and ascension of the traditional spot wholesalemarket, promoting the circulation of commodities, avoiding price risk and realizing thecommodity price discovery. Based on above theory, in this paper,we study the optimalprocurement strategies in the presence of electronic market and have the empirical analysis forthe value-added function of the electronic market on the basis of the supply chain.The structureof this paper is organized as follows:In chapter1, we first introduce the origin and current research situations of optimalprocurement strategies in a supply chain with electronic market and the question that electronicmarket makes the supply chain value-added. Then we list the main contributions and innovationsof this paper.In chapter2, on the basis of the supply chain with two procurement methods for themanufacturer, we study the issue of the optimal procurement strategies in a supply chain withelectronic market. Firstly we model the optimal procurement strategies in the presence ofelectronic market,then obtain the optimal strategies and conduct full sensitivity analysis withrespect to all major parameters. Our study shows that when the correlation coefficient is not zero,the effects of the demand’s volatility to the optimal contract quantity and optimal expectedprofits are only related with the public factor, but have no relationship with the demand specificfactor. While the correlation coefficient is zero, the effects of the price’s volatility to the optimalcontract quantity and optimal expected profits are only related with the price specific factor, buthave no relationship with the public factor. Our research also shows that the effects of the price’sexpectation, demand’s expectation and other parameters to the manufacturer are the common results of the public factor and specific factors, and the levels of their influences are different.In chapter3,we have the empirical analysis for the issue that electronic market makes thesupply chain value-added. By using some corresponding data of guang xi sugar nets,shang hailarge steel electronic trading center and zhe jiang plastic city, we carry on the empirical analysisof electronic market through the tendency chart, correlation analysis,unit root test,cointegrationtest and granger causality test and so on. The result of our analysis demonstrate that theelectronic market can not only broden purchasing and selling channel of the enterprise,reducethe circulation link and logistics cost,but also has the price discovery function, improve theefficiency of the supply chain, and make the supply chain value-added.