Naics: A NAICS code (North American Industry Classification System) is a four-digit
hierarchical number used by government and business groups to classify business establishments
by their primary economic activity. For example, 3115 is Dairy Product Manufacturing
Year: year of production data
Period: month of production data
import percent: Effective tariff percentage rates imposed by the US government on imported
goods in the corresponding 4 digit NAICS industry.
export percent: Effective tariff percentage rates imposed by the US government on imported
goods in the corresponding 4 digit NAICS industry.
Input cost: input cost of manufacturing in that specific industry. The input data is provided when
there is tariff imposed in that industry.
Ip: Monthly production data standardized to 100 in the year 2017. The data is at the 4-digit
industry level.
Emp: monthly employment data at the industry level, The data is at the 4-digit industry level.
3111 2015 Jan
100 units
3111 2015 Feb
107 units
Percentage Change in Monthly Production in Feb =(Pt-Pt-1)/Pt-1= (107-100)/100 = 0.07 or 7%
Tariff arrive in March 2015
3111 2015 April
103 units
3111 2015 May
102 units
5%
Percentage Change in Monthly Production in May=(102-103)/103=-0.009 or -0.9%
3111 2015 June
101 units
Percentage Change in Monthly Production in June=(101-102)/102=-0.009 or -0.09%