Weaver, Robert D. Price and tax policy for semi-subsistence agriculture in Ethiopia / Robert D. Weaver & Saad Ali Shire - Washington, D. C. : World Bank (WB) , 1988 - 33p. : ill. ; 28 cm. - Policy, planning, and research working papers ; WPS 67 . Includes bibliographical references. Subjects--Topical Terms: Agricultural prices--Mathematical models--EthiopiaAgriculture--TaxationAgricultural pricesTaxationAgriculture--Taxation--Mathematical models Gov. Doc. Class. No.: UN WB IED WP-67