cost-effectiveness
noun🔊/ˌkɒst ɪˈfektɪvnəs/
🔊/ˌkɔːst ɪˈfektɪvnəs/
(also cost-efficiency)
[uncountable]the ability to give the best possible profit or benefits in comparison with the money that is spent The environmental benefits and cost-effectiveness of the different options were clear. 不同方案的环境效益和成本效益是显而易见的。