魏大大 发表于 2020-2-16 19:36 
你好，我想问一下v的单位是什么？
Ther dataset gives information about the value of trade (v, in thousands of US dollars) and the quantity (q, in tons). Individual trade flows are identified by the exporter (i), the importer (j), the product category (hs6) and the year (t). BACI is available with versions 1992, 1996 and 2002 of the Harmonized System (HS) with 6-digit disaggregation
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