The document outlines an empirical model using natural logarithms to express various agricultural productivity factors, including output per input, available land, labor, capital, fertilizer, and expenditure on variable inputs. It introduces a dummy variable for malaria morbidity and includes a random error term. The model aims to estimate unknown parameters related to these factors.

1. EMPIRICAL MODELlnQo = The natural logarithm of productivity (output per input)lnLi = the natural logarithm of available cultivatable land to the householdlnN i= the natural logarithm of the labour employed on the farm lnKi = the natural logarithm of the market value of fixed capital inputs used on the farm.lnF i= The natural logarithm of the quantity of fertilizer used by the farming householdlnIN = the natural logarithm of the expenditure on variable inputs.D = A dummy variable to indicate the morbidity of malariaε = the random error term.= unknown parameters to estimated