Equity Allocation Method of Logistic Resources Based on Variable Weights

The influences of individual weights and output efficiencies on logistic resources allocation were studied with fixed and variable weights. It shows that the lacking individual get a high weights under variable weights, which results in a high level of equity. Based on the above, a new method was proposed to achieve allocation equity. A variable weights function was built to calculate the weight of the individual. It is constructed by variable weights, individual utility functions and constant weights. The optimum allocation can be selected by comparing the total utilities of all feasible solutions. Changing variable weights parameters can achieve the tradeoff between efficiency and equity, including optimization efficiency, max-min fairness or other equity degrees. The parameters can be determined by the loss on efficiency and equity. An example of emergency resources allocation demonstrated the validity of this method and illustrated the influence of parameters on weights, efficiencies and equity.