By academic field
- statistics
- economics
- econometrics
- sociology
- industrial relations (incl. collective bargaining)
- ,,,
This could be automated, based on the journal.
By topic
- wage curve
- wage norm
- inequality (incl. dispersion)
- wage
- income
This is generally in the keywords.
By focus
- gender
- age (incl. youth, elderly)
- Belgium
- Europe
- Great Recession
- ...
In other words: population, location, time period.
By kind
- Empirical
- Theoretical
- Literature overview
- Meta-analysis
- Review or comment
- Grey literature (annual reports, technical papers, discussion papers, working papers, etc.)
The label grey is not really necessary: if the article is classified as 'report', it means grey. Often, however, those publications contain a mixture of approaches.
By quality
- Classic (e.g. seminal)
- Good
- Bad
- To do
At first, they're all 'to do', then just good or bad, or classic if it is a necessary reference in the strand of research.
