Bootstrapping

The commonest method used to construct Cost Effectiveness Acceptability Curves (CEAC’s) is called bootstrapping. It can be thought of as a method of constructing confidence intervals and then visually representing it as a CEAC. CEAC’s are constructed in Economic Analyses and point to the probability that a given intervention is cost effective compared to the alternative at a range of investments (stated as willingness to pay per unit gain in outcome). 

Reference

Bootstrapping
Fenwick, Elisabeth, and Sarah Byford. “A guide to cost-effectiveness acceptability curves.” The British Journal of Psychiatry 187, no. 2 (2005): 106-108.