Efficiency Evaluation of Wood Supplying Plans

In this research, efficiency of Iranian forest and rangeland decision making unit was assessed using non-parametric method. Inputs and outputs determined by field research and with applying a Delphi method the final input and output variables selected. Forty five wood-producing units (forestry plans) in three northern Iranian province were studied using Data Envelopment Analysis. The efficiency of wood-producing units were calculated in two forms; constant returns to scale (technical efficiency) and variable returns to scale (scale efficiency). The results indicated that 5 units out of 45 units were fully efficient by reaching to the technical efficiency of 40.38% and9 units reached to the scale efficiency of 55.47%. The result concluded that about 89% of wood producing units were not efficient technically and 80% by scale, which required forest and rangeland decision making authority to enhance inputs in the same level of outputs by suitable policies and strategies.