Turkish Journal of Agriculture and Forestry, vol.22, no.3, pp.241-250, 1998 (Scopus)
In this research general agricultural farms, vegetable farms and hazelnut farms in Çarşamba province have been explored. The effects of production inputs on agricultural incomes have been explained. General agricultural farms and vegetable farms in the area have increasing returns to scale while hazelnut farms have constant returns to scale. Underemployments is not a general case but depend upon the farming system in the region.