Aparicio, JuanCrespo Cebada, EvaPedraja Chaparro, FranciscoSantín González, Daniel2023-06-172023-06-1720170377-221710.1016/j.ejor.2016.06.030https://hdl.handle.net/20.500.14352/18906In this paper, we propose a different way of using the Malmquist index that allows us to further analyze the relative performance divergences between two groups of decision-making units (DMUs) over time when only a pseudo-panel database is available. To do this, we extend the Camanho and Dyson (2006) one-period Malmquist-type index (CDMI) for a pseudo-panel database with a new pseudo-panel Malmquist index (PPMI). To illustrate the methodology, we apply it to examine how the performance gap between public and private government-dependent secondary schools in the Basque Country (Spain) performed across three PISA waves (2006, 2009 and 2012). The results suggest that performance is persistently and significantly higher for private government-dependent schools than for public schools.engjournal articlehttp://dx.doi.org/10.1016/j.ejor.2016.06.030open accessData envelopment analysisEducationProductivity and competitivenessMalmquist index.Econometría (Economía)Métodos de investigación en educación5302 Econometría