IZA World of Labor contributions are framed as policy papers, hence we have limited the number of in-text citations while keeping a more comprehensive list of scientific papers that are also relevant for academic readers. There are three types of references: “further reading,” “key references,” and “additional references.”
Further reading contains literature that is relevant for the interested, non-academic reader. It can include journal articles, reviews and more general books and articles. This reading is usually not cited in the text.
Key references are the most important academic papers a (non-specialist) reader should know about. They are cited in the text and numbered , , ..., etc. in the order that the paper first appears in the text.
Additional references contain a list of all scientific papers that would be cited in a purely academic article, in addition to the key references. This list includes scientific papers that are relevant to academic and specialist readers and provides the basis for the content of the evidence map. These papers are not cited in the text but will be listed online in the right-hand column of the paper following the key references.
The full list of references, comprising further reading, key and additional references, can be viewed and printed separately.