Finance (5) Data envelopment analysis (4) Agriculture (3) Finance (3) Farms (3) productivité (2) papier (2) ferme (exploitation) (2) agriculture (2) Pologne (2) Rennes (2) Variation (2) Trust (2) Production (Economic theory) (2) Paper (2) Markets (2) Indexes (2) Holding companies (2) Confidence intervals (2) Confidence (2) Change (2) Agriculture (2) Productivity (2) Análisis envolvente de datos (2) Confianza (2) Holdings (2) Producción (2) Mercados (2) Finanzas (2) Exploitation agricole (2)