Applying the data envelopment analysis fundamental models for determining of relative efficiency of Mazandaran Wood and Paper Industry Company

In this study, due to increasing of cardboard and paper products demand and consumption in Iran and also the important role of Mazandaran Wood and Paper Industries Company as a great supplier of paper products, the relative performance of the production units of this company was measured.
In order to do this research, required data for a period of 6 years (2005 up to 2010) and 6 production units was collected form the company financial balance sheets. Due to the importance of this company, dual input- oriented data envelopment analysis models was used to measure its efficiency.
The results indicated that this company in some production units (such as: newspaper, white kraft liner and fluting line 1) had a good efficiency score (%100 efficient or score 1). But, according to the input-oriented sample of these models and scale efficiency model (SE), the rest of production units were inefficient.
Hence, this company must reduce its consumption of finical inputs (similar to efficient units) until it increases its scale efficiency of production units and profitability.