John Wallis and Nobel laureate economist Douglass North once tried to tot up transaction costs by looking at the size of sectors such as accountancy, law, retail, management, policing and so on.

• 约翰o沃利斯(JohnWallis)和诺贝尔经济学奖得主道格拉斯o诺斯(DouglassNorth)曾经试图通过考察会计、法律、零售、管理和警察等行业的规模，来衡量总交易成本。