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A Flexible Time-Varying Specification of the Technical Inefficiency Effects Model
Karagiannis, Giannis, (2005)
Measuring the Accountability of Advertising Expenses in the Presence of Sales Cost Inefficiency and Marketing Spillovers
Giannakas, Konstantinos, (2007)
EXPLAINING OUTPUT GROWTH WITH A HETEROSCEDASTIC NON-NEUTRAL PRODUCTION FRONTIER: THE CASE OF SHEEP FARMS IN GREECE
Karagiannis, Giannis,