The aim of the file is to give a data user a detailed overview of fully harmonised GGP data. First of all, the variables begin with a letter designating the wave of data collection (“a” for the first wave likewise “b” for the second wave). We have attempted to keep the names of variables the same across the waves, and all the new variables would be identified as follows [“wave letter”]n e.g. bn301. The codebook starts with the constructed variables that sum the key socio-demographic characteristics of the respondent. Besides, this file contains the information about the consolidated variables and also which variables are used for the consolidation. It also imputed income variables representation.
The GGS Variable Availability and County Specificities file contains the detailed information for each country and for each variable. All the country specific variables end with an underscore followed by [“country code”]01 e.g. Australia a119_2401. Hence, the country code, as an example, for Australia is 24. While the country specific values are at least 4 digits long (F4 format) and begin with the country code: e.g. Australia 2401.
Since working with panel data is more complicated, it might be the case that data users will come up with some specific questions about the data file or harmonization procedure such as what we do with replicated questions? or why do some variables contain a value that is not listed in the codebook?. Data users can find can find answers to some questions that were posed to us the FAQ sections.