intangible ideas造句

• The modern theories of the firm are rested on two assumptions , in which either the number and quality of the product is fixed , or the transaction costs of intangible idea is zero
  科斯和张五常的企业理论可以看作是建立在这样一个非此即彼的假定之上:或者假定产品的数量和质量维度给定不变，或者假定所有的产品创意的交易费用为零。