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Aggregation procedure : REFERENCE GROUP weighting Scheme.
	
Variable	Description
reporter	ISO code (United Nation classification 3 digits) of importer
partner		ISO code (United Nation classification  3 digits) of exporter
HS2		HS2 Chapter (Harmonized System 2 digits)
Adv = Ad Valorem Equivalent of the tariff. (0.02 = 2%). See working paper for a description of the methodology. (numerical variable)
W_rg = Weights_Reference_Groups.  MAcMaphs6 reference groups weighting scheme (HS2 level). See working paper for a description of the methodology. (numerical variable)


The year of the data is indicated in the name of the database
Each archive zip contains a .txt file (data) that is tab separated and a read me file.



