The decision-making contract is described as a function of price, credit limit, and guarantee in the situation of variable price. The paper analyzes the creditor's losses caused by inaccurate judgment of the client's risk types when there are high and low types of credit risks. According to the above losses, a credit decision model under the effects of the default probability is constructed from the principle of minimization of risk and the model's Kuhn Tucker - conditions are given in the paper.And credit sale decision mechanism with guarantee and credit sale risk decision mechanism without guarantee are given respectively in the paper. At the same time the influences of credit limit, price and guarantee on credit risk under the above decision mechanism are analyzed.%在产品价格可变动的情况下,将赊销方的赊销合同描述为三元组函数,分析了当存在信用高和信用低2种不同的赊销客户时,赊销方由于信息不对称无法准确判断客户信用水平而造成了赊销货款的损失.根据以上损失,从赊销损失最小化的角度,建立了存在拖欠概率影响下的赊销决策模型,并给出了其Kuhn-Tucker条件.同时,对存在担保和不存在担保2种情况下的赊销情况给出了相应的赊销决策机制,并分析了在该机制下赊销额度、赊销价格和第三方担保对赊销风险的影响.
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