In confirming the conception of the former one the author introduced the economic concepts and ascertained the amount of compensation by different methods on the basis of the market price.

补偿性损害赔偿引进了经济学概念，并区分损失是否有市场代替品分别适用两种方法来确定赔偿数额。

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The circumstances are, basically, no one has absolutely ascertained what happened.

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