Bhupathiraju, Samyukta; Verspagen, Bart; Ziesemer, Thomas - United Nations University-Maastricht Economic Research … - 2013
We propose a method for spatial principal components analysis that has two important advantages over the method that Wartenberg (1985) proposed. The first advantage is that, contrary to Wartenberg's method, our method has a clear and exact interpretation: it produces a summary measure...