契約解除時 履行利益과 信賴利益의 關係에 관한 小考

A Study on the Relation of Expectation Interest (Erfüllungsinteresse) and Reliance Interest

In this paper I have focused on the theory of the Supreme Court Decision 2002Da2539(decided on June 11, 2002) about expectation interest (Erfüllungsinteresse) and reliance interest. The Supreme court decided that plaintiff might claim expectation interest (Erfüllungsinteresse) or reliance interest alternatively. I have agreed to the theory of the Supreme Court Decision I have analysed the basis on the law of contract that belongs to damages as the object to have to compensate. Recently it has been admitted reliance interest by the Supreme Count including this case. This means that admitted cases offer a clue to insist on the theory that damages should be compensated by reliance interest against expectation. Because the doctrine of mitigation has been acclaimed as the basis of the reliance interest by the courts, legislations and theories. According to Article 77 in CISG, a party who relies on a breach of contract ought to take such measures as ore reasonable in the circumstances to mitigation of the loss, including loss of profit, resulting from the breach. If he fails to take measures, the party in breach many claim a reduction in the damages in the amount by which the loss should have been mitigated. So in actuality, it is impossible to compensate the expectation damages in full I hope that provisions regarding compensation of the disbursement of expenses shall be stipulated in Article 393 paragraph③ of the Korean Civil Code like Article 77 in CISG or Article 284 in BGB.