Finally the article makes use of Black-Scholes option pricing model to calculate the overall country risk index, and then analyzes the country risk level of China and Chile under different guarantee levels.

• 本文最后利用Black-Scholes期权定价模型计算出国家风险费率作为出口信用保险机构评价国家经济风险的一个重要参考指标，并对我国及智利在不同担保水平下的国家风险费率水平进行了对比分析。