Figure 4 Principal components analysis, rotation of three components, 1993
4a Loadings on factor 1
4b Loadings on factor 2
4c Loadings on factor 3
In 2003, component 1 and 3 seem to have changed places. At the same time, their
patterns of loadings have changed substantially. The opposition between center and
periphery is represented by the third component now. Its central point has shifted
westward. The first component in 2003 shows an opposition between an area consisting
of South Holland, Utrecht, and North Brabant, on the one hand, and the northeastern
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