Gabre-Madhin, Eleni Z. Market institutions, transaction costs, and social capital in the Ethiopian grain market Eleni Z. Gabre-Madhin - Washington IFPRI 2001 - 93 p. 28 cm - Research report / IFPRI 124 . - Research report / IFPRI . ISBN: 089629126X Subjects--Index Terms: Etiopia Costos Comercio Cereales