Positional goods and Robert Lee Hale's legal economics
结合罗伯特·李·黑尔的自由定义与位置物品理论，说明自由消费产生的外部性，并详述立法者的角色。
Abstract The legal realist Robert Lee Hale offered a definition of freedom as a zero-sum game: each volitional freedom implies some degree of coercion over other people's freedom, and at the same time one's freedom is subject to some degree of control and coercion by others. The objective of our work is to develop this idea along with the theory of positional goods. This allows us to illustrate the externalities deriving from the ‘consumption’ of freedom and detail the role of the lawmaker in accordance with the Halean contribution.