分析在Bertrand-Cournot竞争模型之下,"低成本高关税"结论的成立条件。指出只有当两公司生产成本不相等,且产品差异程度为0或1时,"低成本高关税"才是成立的。提出反对贸易保护主义、提升"硬实力"和"软实力"等相关措施,减少国家或地区成本不对称与税收的负面影响,促进对外贸易的深入发展。
The establishment condition of "low cost and high tariff"under the Bertrand-Cournot competition model are analyzed,which is only when the production costs of the two companies are not equal,and the degree of product difference is 0or 1.Opposing trade protectionism,enhancing the"hard power"and "soft power"and other related measures are put forward in order to reduce the negative impact of countries or regions asymmetric costs and tax,and to promote the further development of foreign trade.