A THESIS SUBMITTED TO THE FACULTY OF DEVELOPMENT STUDIES IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE AWARD OF THE DEGREE OF MASTER OF SCIENCE IN AGRICULTURAL AND APPLIED ECONOMICS UNIVERSITY OF MALAWI BUNDA COLLEGE OF AGRICULTURE. Advisors: Prof. A. K. Edriss, Dr. L. D. Mapemba, Dr. B. H. Z. Moyo
