The research on the theory of the partial termination in the complex long-term contracts

本研究的目的在于理清双方或三方之间复杂的长期合同部分解除的理论基础。这一理论关注的是一种合同的不履行对另一种合同的影响。该研究将分析日本和欧洲特别是德国在消费者法方面面临的许多具体问题。这些题目以散文的形式发表。通过国内外专家的交流，深化了本研究的内容。因此，B2C合同中出现的与消费者相关的问题与复杂的长期合同有着密切的联系，尽管还没有达到理论所明确的目标，并获得了一些重要的迹象。

The goal of this research is to clear a theory of the partial termination in the complex long-term contracts between two or three parties. This theory is concerned with the effect of the non-performance in one contract to the other contract.The research will analyze many concrete problems concerning Consumer Law, whom Japan and Europe, especially Germany, are facing. These topics were published as an essay. By exchange between experts from within and outside of Japan, the content of this research was deepened. As a result the consumer-related problems occurred in the B2C contracts have closely connected with the complex long-term contracts, though it does not reached sufficiently the goal the theory to clear, and some important indications about that was gained.