There is, he added, not enough analysis of the costs and benefits of new rules. Moreover regulators have opted for expansion over efficiency.
他补充道，现在没有对新规定进行足够成本效益分析，并且规制者倾向于扩大规制，而忽视了效益。
After all, the time and expense required to collect further information or to conduct detailed studies of opportunity costs may outweigh the anticipated benefits of prolonged search and analysis.
毕竟，时间和收集信息的费用或者做更细致的研究都是机会成本，而其将超过经过有研究、分析而获得的预期的收益。
Based on product green design, this paper proposes the product recycling design economic analysis model to assure the equilibrium of costs and benefits at the recycling stage.
立足于产品的绿色设计，构建了产品再回收设计的经济性分析模型，以保证产品在回收处理阶段的成本与收益之间的均衡。
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