各国双边贸易成本，包括农业贸易成本、制造业贸易成本和所有产品贸易成本1995-2022年！！【最新！！！2024年7月更新数据】
贸易成本测度以Novy（2012）为基础，是一种基于微观理论、利用宏观经济数据计算的综合性综合测度，为贸易便利化绩效提供了替代测度。

涉及 180 多个国家/地区双边的农业、制造业和所有产品的贸易成本估算！！双边数据缺失值比较多！！！
参考文献：

[1] http://onlinelibrary.wiley.com/doi/10.1111/j.1465-7295.2011.00439.x/abs…

[2] http://dx.doi.org/10.1017/S147474561500052X

变量名称及说明：

Variable	Description
reporter	Reporting country in ISO-3 digit
reportername	Reporting country's fullname
partner	Partner country in ISO-3 digit
partnername	Partner country's fullname
year	year
sector	AB is agriculture, hunting, forestry and fishing (ISIC Rev 3)
	D is manufacturing (ISIC Rev 3)
	GTT is the summation of AB and D
sectorname	sector's description
tij	Interpolation: Ad-valorem equivalent trade costs in percent: sigma=8
geometric_avg_tariff	Geometric average of tariff_ij and tariff_ji
nontariff_tij	Interpolation: Ad-valorem equivalent trade costs excl. tariff in percent:  sigma=8