Coxhead, IanShively, Gerald E.2016-04-192016-04-191995Agriculture and Applied Economics Staff Paper no. 384151_stpap384.pdfhttp://hdl.handle.net/10919/65236We evaluate the onsite land degradation effects of economic changes occurring both within agriculture and elsewhere in the Philippine economy, simulated with the APEX applied general equilibrium model. We derive changes in land degradation rates from changes in land use in rainfed annual crops, using Philippine data on upland erosion under a range of crops, rainfall patterns and slopes. In general equilibrium, land degradation rates are affected by endogenous price changes as well as by direct interventions in agriculture and agricultural processing sectors. We examine the effects of technical progress in corn, and of a capital subsidy to the rice and corn milling sector. Using the nutrient replacement cost method, we calculate the value of changes in land degradation rates and compare them with GDP, government expenditures and other aggregates used by policy makers.application/pdfen-USIn CopyrightCommon marketsEconomic policyEnvironmental impactsEconomic impactsTechnological progressEconomic welfareEconomic structureIncome distributionCorn production(APEX) Applied General Equilibrium ModelAgricultural growthEconomic policyEnvironmental qualityLand degradationFarm/Enterprise Scale GovernanceTechnical reportCopyright 1995 by Ian A. Coxhead and Gerald Shively. All rights reserved. Readers may make verbatim copies of this document for non-commercial purposes by any means, provided that this copyright notice appears on all such copies.