一、引言在合同关系中,当一方违约,非违约方应采取一定的措施减轻损失,否则不得就可减轻的部分要求违约方赔偿,此即为本文所要研究的减轻损失规则,简称减损规则。例如,在卖方违约不交付货物的情况下,买方应当尽合理的努力到市场上购买相同的货物,以减轻卖方违约造成的损失。减损规则不仅存在于合同 I. INTRODUCTION In a contractual relationship, when one party defaults, the non-defaulting party shall take certain measures to reduce the losses, otherwise no compensation may be required from the defaulting part for the mitigating part. This is the mitigation loss rule to be studied in this paper, or the derogation rule for short. For example, where the seller defaults in the delivery of the goods, the buyer should use reasonable efforts to buy the same goods on the market in order to reduce the losses caused by the seller's breach of contract. Derogation rules exist not only in contracts