mention the inputs and output of a typical farm system
Answers
Collection of Input and Output Data
Agricultural production is characterized by large numbers of firms at dispersed locations. In most cases, farms lack formal records of input use, particularly with regard to individual crops. Output records are somewhat more common, but usually this information is not expressed in the yield measures needed for economic analysis. As a result, primary farm surveys are expensive and time-consuming and place heavy demands on skilled manpower for monitoring and evaluating the survey data. In PAM-related work, the constraints of time and financial support for research usually mean that primary farm surveys are not possible. Instead, the analyst relies on secondary data in the preparation of representative farm budgets. Fieldwork remains critical to the construction of the PAM, but efforts focus on the verification of secondary data, the collection of information about current prices, and the introduction of modifications of input-output relations to account for technological change.