Cotfas, Mihai; Heshmati, Almas; Hjalmarsson, Lennart - Economics Institute for Research (SIR), … - 2000
catch up in the level of productive efficiency. … productivity progress,
and a corresponding catch up in the level of productive efficiency.
.H\ZRUGV Productivity change …, productive efficiency, stochastic frontiers, time-varying
efficiency, panel data, cement industry, Romania
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