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贸易成本是影响一国贸易流量大小的重要因素。基于改进的引力模型方法,采用2005-2014年中国与不同收入组国家的农产品、制造业产品贸易成本数据进行分析,结果发现:从产品角度来看,2005-2014年期间,中国农产品贸易平均成本显著高于制造业产品平均贸易成本,但在考察期内两者均呈现下降趋势;从贸易伙伴国角度来看,除与低收入国家双边贸易成本有小幅上涨外,与其他三组国家的双边贸易成本均呈现下降趋势。焦晓松
Trade costs are an important factor affecting the size of a country’s trade flows. Based on the improved gravity model method, using the data of trade costs of agricultural products and manufacturing products from 2005 to 2014 in China and different income groups, we find that from the product perspective, from 2005 to 2014, the average cost of China’s agricultural products trade Which was significantly higher than the average trade costs of manufacturing products, but both showed a downward trend during the study period. From the perspective of trading partner countries, bilateral trade costs with low-income countries rose slightly, while bilateral trade with the other three groups Trade costs are showing a downward trend. Jiao Xiaosong