Study On The Stable Matching Transaction Mechanism For Coal Supply And Demand Enterprises

Innovative coal trading mechanism is a new good idea for the government to get along well with the coal market and to achieve the stability of the coal market.Traditional trading mechanisms such as listed transactions,auction transactions,bidding transactions have a one-way selectivity,information asymmetry,lack of competition and unstable trading relationship and other shortcomings.Two-sided Matching Theory provides a theoretical basis for solving the problem of stable matching of coal enterprises.The stable matching model of coal enterprises in this paper is a further generalization of the two-sided matching model.Using the delay acceptance algorithm with transaction volume,we can get the outcome of stable matching.The algorithm is operable,that is,coal suppliers and demanders can adjust the preferences over each other and supply and demand volume,so that they can achieve the previous matching transaction.The pairwise stable matching outcomes under the algorithm are the optimal ones for the coal demand enterprises,and so the benefits of the consumption side are better protected.The algorithm with wide applicability is a generalization of the delay acceptance algorithm for the marriage matching model,the college admission model and the firm-worker matching model,and can achieve the pairwise stable matching outcomes among the above models.The stable matching mechanism for coal supply and demand enterprises is also the integration of bidding transactions and auction transactions.It can be transformed to bidding and auction mechanism through parameter setting.In the stable matching mechanism for coal supply and demand enterprises,the matching transaction has a certain degree of trade elasticity.The small increase of supply of individual supplier or the slight reduction of individual demander does not change the matching transaction relationship.More importantly,if the supplier can accurately respond to the demand changes,stable matching relationship will not change with changes in supply and demand.The delay acceptance algorithm with transaction volume has high efficiency,which can get the result in a short time,and can finish the matching transaction for large amount of users.The matching outcomes of listed transactions may have multiple blocking pairs,resulting in the instability of the trading relationship.Unlike the listed transactions,the stable matching mechanism for coal supply and demand enterprises can avoid any blocking pairs.This makes the supply and demand enterprises form a relatively stable trading relationship,which can also help the coal enterprises more accurately respond to market demand and changes.