Economic Analysis on Chinese Marriage Effective System

According to the legal purpose view of law science of economic analysis, the system that the marriage is effective or invalid should accord with the demands for efficiency. Of our country marriage system, the regulation that it stipulates bigamy and consanguineous marriage as the void marriage accords with the demands for marriage efficiency. But the other regulation, the one, not acknowledging the legal effect of the fact marriage and living together at all, is not efficiency. So is the one forbidding the person suffering from the disease thought not to get married in medical science and having not reached legally marriageable age to get married without exception. So, it is necessary to revise the system that the marriage is effective or invalid.