Carreras, Miquel; Coenders, Germà - In: Revista de métodos cuantitativos para la economía y … 29 (2020), pp. 18-37
Financial ratios are often used in principal component analysis and related techniques for the purposes of data reduction and visualization. Besides the dependence of results on ratio choice, ratios themselves pose a number of problems when subjected to a principal component analysis, such as...
