Industry is a characteristic of an individual's job and hence varies over time. There are industry values reported for (potentially) two jobs in each wave of the survey. Industry is chosen by summing earnings associated with the array of variables ws1ind1-ws1ind{max number of waves} and ws2ind1-ws2ind{max number of waves} in the 1984,1990-1993 panels, and ejbind1_1-ejbind1_{max number of waves) and ejbind2_1-ejbind2_{max number of waves} in the 1996-2008 panels and choosing the industry associated with the greatest total earnings. Thus industry is the industry from which greatest earnings are derived in the survey.

1	Agriculture, Fishing, Forestry, Hunting
2	Gas, Mining, Oil
3	Construction
4	Manufacturing
5	Wholesale Trade
6	Resale Trade
7	Transportation and Warehousing
8	Utilities
9	Information
10	Finance and Insurance
11	Real Estate, Rental of Goods
12	Professional, Scientific, and Technical Services
13	Management of companies/enterprises
14	Administrative, support, waste management services
15	Educational Services
16	Health Care and Social Assistance
17	Arts, Entertainment, and Recreation
18	Accommodation and Food Services
19	Other Services, except public domain
20	Public Administration
21	Military (specifically, last or present job was or is in the armed forces)