Iqbal, Naveed; Sial, Maqbool H.; Saleem, Adeel - In: Pakistan journal of applied economics : PJAE 31 (2021) 2, pp. 191-208
(2006). This variant role of inputs is studied by using farm household-level data. In Pakistan, this study is one of the … negatively. The study also shows the effect of farm size on productivity. …