Browsing by Author Helfand, Steven M.
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Issue Date | Title | Author(s) |
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2015-01 | Spatial stochastic frontier models : accounting for unobserved local determinants of inefficiency | Schmidt, Alexandra Mello; Moreira, Ajax Reynaldo Bello; Fonseca, Thais C. O. da; Helfand, Steven M. |
2006-10 | Spatial stochastic frontier models: accounting for unobserved local determinants of inefficiency | Schmidt, Alexandra Mello; Moreira, Ajax Reynaldo Bello; Fonseca, Thais C. O. da; Helfand, Steven M. |