Weighting for what? A comparison of two weighting methods for measuring urban competitiveness
2013
Jiang, Yihong | Shen, Jianfa
This paper examines how different weighting methods affect the results of urban competitiveness ranking. Using a hierarchical indicator system that considers economic, social, and environmental dimensions of the competitiveness of Chinese cities as a case study, it shows that principal component analysis (PCA) produces rankings of urban competitiveness that are significantly different from the alternative equal weighting (EW) method. Moreover, PCA generates problematic weights for some indicators and assigns a small weight to the environmental performance of cities. The paper investigates these problematic results and argues for the necessity of deliberating more consciously on appropriate weighting methods in the construction of composite indicators in urban competitiveness studies and beyond.
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