The impact of integrated aquaculture–agriculture on small‐scale farms in Southern Malawi
基于2004年马拉维315户农户调查数据，研究发现采用综合水产养殖-农业技术的农场在技术效率、全要素生产率和每公顷收入上显著高于未采用者。
Abstract Sustainable agricultural intensification is an urgent challenge for Sub‐Saharan Africa. One potential solution is to rely on local farmers' knowledge for improved management of diverse on‐farm resources and integration among various farm enterprises. In this article, we analyze the farm‐level impact of one recent example, namely the integrated aquaculture–agriculture (IAA) technologies that have been developed and disseminated in a participatory manner in Malawi. Based on a 2004 survey of 315 respondents (166 adopters and 149 nonadopters), we test the hypothesis that adoption of IAA is associated with improved farm productivity and more efficient use of resources. Estimating a technical inefficiency function shows that IAA farms were significantly more efficient compared to nonadopters. IAA farms also had higher total factor productivity, higher farm income per hectare, and higher returns to family labor.