Agricultural Economics (Amsterdam, Netherlands), GIS-derived measures of location and space have increasingly been used in models of land use and ecology. However, they have made few inroads into the literature on technology adoption in developing countries, which continues to rely mainly on survey-derived information. Location, with all its dimensions of market access, demographics and agro-climate, nevertheless remains key to understanding potential for technology use. The measures of location typically used in the adoption literature, such as locational dummy variables that proxy a range of locational factors, now appear relatively crude given the increased availability of more explicit GIS-derived measures. This paper attempts to demonstrate the usefulness of integrating GIS-measures into analysis of technology uptake, for better differentiating and understanding locational effects. A set of GIS-derived measures of market access and agro-climate are included in a standard household model of technology uptake, applied to smallholder dairy farms in Kenya, using a sample of 3330 geo-referenced farm households. The three technologies examined are keeping of dairy cattle, planting of specialised fodder, and use of concentrate feed. Logit estimations are conducted that significantly differentiate effects of individual household characteristics from those related to location. The predicted values of the locational variables are then used to make spatial predictions of technology potential. Comparisons are made with estimations based only on survey data, which demonstrate that while overall explanatory power may not improve with GIS-derived variables, the latter yield more practical interpretations, which is further demonstrated through predictions of technology uptake change with a shift in infrastructure policy. Although requiring large geo-referenced data sets and high resolution GIS layers, the methodology demonstrates the potential to better unravel the multiple effects of location on farmer decisions on technology and land use.
Examines emerging global food chains that displace local decision making and, alternatively, emerging alternatives that help localize production/consumption relationships in the food system in equitable ways.
Wolf, Marianne McGarry (author / California Polytechnic State University), Gelke, John (author / California Polytechnic State University), Lindo, Michelle (author / California Polytechnic State University), Doub, Philip (author / California Polytechnic State University), and Lohse, Brian (author / California Polytechnic State University)
Format:
Online article
Publication Date:
2002
Published:
USA
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 128 Document Number: C19119
Huffman, Wallace E. (author) and Tegene, Abebayehu (author)
Format:
Book chapter
Publication Date:
2002
Published:
International
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C21700
Notes:
Pages 179-189 in Vittorio Santaniello, Robert E. Evenson and David Zilberman (eds.), Market development for genetically modified foods. CABI Publishing, Oxon, United Kingdom. 318 pages.
Harris, Craig K. (author), Molnar, Joseph J. (author), and Traxler, Maria (author)
Format:
Book chapter
Publication Date:
2002
Published:
USA: Praeger, Westport, Connecticut.
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C37079
Notes:
See C37075 for original, Pages 43-55 in Ronald C. Wimberley, Craig K. Harris, Joseph J. Molnar and Terry J. Tomazic (eds.), The social risks of agriculture: Americans speak out on food, farming and the environment. Praeger, Westport, Connecticut. 163 pages.
