The theory mainly from the profit reward theory, the riskofliability theory, theory of social costs, as well as trust relations theory.
其理论来源主要是获利报偿理论、危险责任理论、社会成本理论、以及信赖关系理论。
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There are other disincentives, too, especially for pharmaceutical companies: Pregnant women are "not a huge market, and it does carry this potential riskofliability," Baylis says.