文章基本信息

标题：Do Insect and Mold Damage Affect Maize Prices in Africa? Evidence from Malawi
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作者：Michael Jones ; Corinne Alexander ; Nicole Olynk Widmar 等
期刊名称：Modern Economy
印刷版ISSN：2152-7245
电子版ISSN：2152-7261
出版年度：2016
卷号：07
期号：11
页码：1168-1185
DOI：10.4236/me.2016.711115
语种：English
出版社：Scientific Research Publishing
摘要：Economic losses to stored grain can potentially come from both quantity losses and quality losses in the form of price discounts for damage from insects and mold. This article uses choice experiments conducted with physical samples of maize to estimate discounts for damaged grain among maize traders in Malawi. Using the Equality Constrained Latent Class method to correct for non-attendance to the price attribute, we find that traders place a statistically and economically significant discount on insect-damaged maize. We estimate that a 1% increase in maize damage reduces the price of maize by 2.8% to 3.6%, depending on damage level. We discuss the implications of these results for farmers’ incentives to adopt improved storage technologies that can reduce post-harvest losses.
关键词：Insect Damaged Maize;Post-Harvest Losses;Choice Experiments;Attribute Non-Attendance;Sub-Saharan Africa