Measuring group performance based on metafrontier
改进了Afsharian等人的元前沿群体绩效评估模型，将其转化为线性规划并扩展到可变规模报酬情形，解决了原模型不可行的问题，并用海运和太阳能行业案例展示了应用。
Afsharian et al. proposed a metafrontier-based group performance evaluation model under centralised management scenario. Their model is a mixed integer linear programming model under constant returns to scale. Their model suffers from infeasibility when variable returns to scale is assumed. We convert their model into an equivalent linear programming model under constant returns to scale. We extend the linear programming model to variable returns to scale and resolve the infeasibility. Models for centralised and decentralised scenarios are proposed in current paper. An example of a maritime carrier is introduced to demonstrate how the models proposed can be used to investigate the influence of the decision on joining maritime alliance on the performance of a carrier. Another example of solar industry is introduced to illustrate the application of the decentralised model in measuring the technology gap ratio.