In the data set for study II, there is a variable called ‘LänKommun’ where the participants' home municipality is registered based on Sweden’s municipal codes. OJ, which has long advocated an analysis of the data linked to urban / rural living, pointed out that the Swedish Association of Local Authorities and Regions (SALAR) [Sveriges kommuner och landsting (SKL)] has produced a classification systemin which the municipalities are divided into a total of nine groups on the basis of structural parameters such as population and commuting patterns”. All Swedish municipalities have thus been classified according to this system in the following way.

What I will do now is to create a new variable called ‘MunicipalityClassification’ where I will classify the participants' home municipalities into the nine groups.