efficiency analysis of paper mill using data envelopment analysis models (case study: mazandaran wood and paper company in iran)

in this study, the relative performance of mazandaran wood and paper company as a major supplier of paper products in iran was measured. network data envelopment analysis (dea) models with parallel structure were used to evaluate and measure its performance. gams software version 23.4 was used for data analysis. results indicated that this company in all studied years had good performances based on the parallel dea models. also, according to the same models with parallel structure, 2007 and 2008 had better efficiency score than the other years. finally, results indicated that, using the cross efficiency models, the company had the best performance in 2007. this result could be due to the input-oriented nature of the models. consequently, by proper management and optimum consumption of the resources, the company had the best performance in 2007.