Efficiency in Stock Markets with DEA: Evidence from PSI20
作者： Adriano Mendonça Souza , Nuno Barbosa Ferreira
DOI: 10.2047/IJLTFESVOL5ISS1-861
关键词: Economics 、 Financial system 、 Commercial banking 、 Revenue 、 Market value 、 Data envelopment analysis 、 European debt crisis 、 Macroeconomics 、 Stock (geology) 、 Portuguese 、 Market liquidity
摘要: After the US subprime crisis, first signs of a sovereign debt crisis spread among European financial players. The regulation markets by Commission and Central Bank created limitation to obtained great amount liquidity in commercial banking sector. In this context, successful survival some banks became dangerous situation. present study try explore occurred one largest private Portuguese through analysis efficiency levels twenty enterprises PSI20 since 1993. input variables chosen were market value return Data Envelopment Analysis model. Consistent with earlier studies, results show substantial revenue inefficiencies enterprises. enterprises.
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