Propozycja metody doboru zmiennych do modeli DEA (procedura kombinowanego doboru w przód)
Proposal of a new method for variable selection in DEA models (combined forward stepwise selection method)

Summary/Abstract: The article presents a proposal of a new method for variable selection in Data Envelopment Analysis (DEA). The method is based on stepwise adding of variables to a simple (one output/one input) model. Two conditions are used to recognize which variable should be added to the model: relative change of a mean efficiency (which is due to incorporation of a new variable) and correlation coefficient between the results of efficiency analysis before and after incorporating a new variable.

• Details
• Contents