The existing cross-efficiency evaluation methods under network structures are all limited to two basic network systems: series and parallel. Based on the directional distance function (DDF), we firstly propose the cross-efficiency evaluation method for a parallel two-stage system, which consists...

This paper investigates the optimal private health insurance contract design problem considering the joint interests of a policyholder and an insurer. They jointly determine the premium of a private health insurance. To better reflect the reality, the illness expenditure is governed by an...