Annäig Morin, "Workplace Heterogeneity and Wage Inequality in
Denmark," Journal of Applied Econometrics, Vol. 38, No. 1, 2023,
pp. 123-133.

The data used in this paper are the property of the Danish statistical
office, Danmarks Statistik, who do not permit open access; hence the
data are confidential. 

The analysis in the paper uses several registers: BEF, FIDF, IDAN,
IDAS, and UDDA. These five registers are merged and the time frame is
1982-2007. The variable "lbnr" is used to identify establishments, and
the variable "pnr_num" is used to identify workers. The wage variable
used in the paper is the variable called "timelon", which is a measure
of hourly wages. 

The cleaning of the data is performed according to the description in
the data section. The size of the final sample is stated at the end of
Section 2. 

Information concerning the data can be obtained at:

  Danmarks Statistik
  Sejrøgade 11
  DK-2100 Copenhagen
  dst@dst.dk

Documentation of the variables can be obtained at:

https://www.dst.dk/da/TilSalg/Forskningsservice/Dokumentation/hoejkvalitetsvariable/beskaeftigelsesoplysninger-der-vedroerer-ida-ansaettelser

Annaig Morin
amo.eco [AT] cbs.dk