Overlapping Regionalism (OVREG)

The Overlapping Regionalism (OVREG) database has been developed as part of the research project “Overlapping Regionalism in Africa, the Americas, Asia and Europe Compared”, which was funded by the German Research Council (grant number PA 1257/7-1; 421167407) The OVREG datasets 2.0 provide information on 73 regional international organizations (RIOs) from 1945 to 2020. The research questions guiding the development of the datasets are: How has overlapping regionalism evolved over time and space? Why and when does overlapping regionalism occur and increase? This codebook provides an overview of the dataset. In the following first part, the codebook introduces the datasets, describes the included cases and information, clarifies the coding procedure and coding decisions, and explains how to use the datasets. The second part of the codebook provides an alphabetical list of all variables in the databases, while the variables are described in detail in part 3, ordered after categories.