List of Articles Productivity change

• Open Access Article
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  1 - Productivity changes of units: A directional measure of cost Malmquist index
  G. Tohidi S. Tohidnia
• Open Access Article
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  2 - COST MALMQUIST PRODUCTIVITY INDEX IN SUPPLY CHAIN
  M. Fallah Jelodar M. Sanei S. Mamizadeh Chatghayeh