Comparability
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Section for Earnings and Absence, Social StatisticsHege Susanne Hauglund
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Improvements in the index are continuously being made. If major errors have been rectified, the index has, as far as possible, been revised back to the first quarter of 1995 when calculations of the index began. From the first quarter of 2013 a new delimitation of sectors (state, regional, municipal or private) has been applied. Hence causing a breach in the data between the fourth quarter of 2012 and the first quarter of 2013. The index of average earnings in the public sector is comparable and in many ways similar to the index of average earnings for Corporations and Organisations. Internationally, the index is to some degree comparable to wage indices of the public sector in other countries.
Comparability - geographical
The index of average earnings can to some extent be compared to other similar indices abroad. It should be highlighted that there normally are quite big differences in the methodology behind the indices, and therefore they are not fully comparable.
Comparability over time
The index of average earnings for public administration and services replaces the index of average earnings in the public sector, which was published for the last time for the fourth quarter of 2013. The comparability of the two indices is quite high. The difference has to do with the new applied delimitations of the sectors, where some of the public owned enterprises, such as Danish Railways (DSB) and some of the municipal owned resource centers, now according to the new delimitations of the sectors belong to “the index of average earnings of Corporations and Organisations”. The new sector delimitation was applied starting from the first quarter of 2013, which means that there is a breach in the data at this point. The figures for the index of average earnings for public administration and services and theindex of average earnings in the public sector are therefore identical before 2013.
Improvements in the index are continuously being made. If major errors have been rectified, the index has, as far as possible, been revised back to the first quarter of 1995 when calculations of the index began.
Coherence - cross domain
The indices are comparable with the corresponding index for corporations and organisations.
Coherence - internal
The index is based on a single data source and so there are no internal inconsistency.