Worker for this variable is usually a census definition based of economically active population. For more information and proper citation see http://www.rug.nl/research/ggdc/data/pwt/pwt-7.1 Source Indicator: rgdpwok
The equivalent measure used here assigns a weight of 1.0 to all persons over 15, and 0.5 for those under age 15. For more information and proper citation see http://www.rug.nl/research/ggdc/data/pwt/pwt-7.1 Source Indicator: rgdpeqa
For more information and proper citation see http://www.rug.nl/research/ggdc/data/pwt/pwt-7.1 Source Indicator: rgdpch