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dc.contributor.authorCarrion Yaguana, Vanessa Del Rocioen_US
dc.date.accessioned2016-04-26T08:00:19Z
dc.date.available2016-04-26T08:00:19Z
dc.date.issued2016-04-25en_US
dc.identifier.othervt_gsexam:7280en_US
dc.identifier.urihttp://hdl.handle.net/10919/70851
dc.description.abstractThis dissertation is composed of three essays examining adoption of agricultural technologies in Ecuador and intergenerational mobility in the United States. The first essay entitled 'Does IPM Have Staying Power? Revisiting a Potato-producing Area Years After Formal Training Ended' examines (Integrated Pest Management) IPM spread and adoption several years after formal intensive IPM outreach efforts ceased in a potato-producing region in Ecuador. It describes adoption patterns and sources of IPM knowledge in 2012 and compares them with patterns that existed when outreach ceased in 2003. Results show that IPM adoption continues in the area but with a lower proportion of farmers adopting all practices and a higher proportion adopting low to moderate levels compared to 2003. Farmer-to-farmer spread has supplanted formal training and outreach mechanisms. IPM adoption significantly lowers pesticide use and saves production costs for adopters. The second essay entitled 'Can Text Messages Improve Agricultural Outreach in Ecuador?' seeks to understand how receipt of text messages complements training from a farmer field day. It measures the effect of text message receipt on adoption of (Integrated Crop Management) ICM technologies and knowledge about these technologies. In the first part of the paper, we present a theory of behavioral change and its application to adoption of agricultural technologies. In the second part, we use intention to treat (ITT) and an improved-ITT analyses to measure the impact of the intervention. The results of this essay suggest that as providers of information, text messages have some knowledge building effect leading to the adoption of IPM practices. As reminders, text messages effectively increase adoption of IPM practices, in particular recommended pesticides. The third essay entitled 'Determinants of Absolute Upward Income Mobility: The Hidden Cost of Commuting' focuses on commuting times as a determinant of upward income mobility in the United States. We provide an explanation of the channel through which the effect of commuting times on upward income mobility operates. Additionally, it evaluates empirically the effect of commuting on upward income mobility. The empirical results confirm the theoretical model predictions that commuting times affect negatively upward income mobility.en_US
dc.format.mediumETDen_US
dc.publisherVirginia Techen_US
dc.rightsThis Item is protected by copyright and/or related rights. Some uses of this Item may be deemed fair and permitted by law even without permission from the rights holder(s), or the rights holder(s) may have licensed the work for use under certain conditions. For other uses you need to obtain permission from the rights holder(s).en_US
dc.subjectAdoptionen_US
dc.subjectAgricultural Technologiesen_US
dc.subjectIntergenerational Mobilityen_US
dc.subjectIntegrated Pest Managementen_US
dc.subjectIntegrated Crop Managementen_US
dc.subjectCommuting Timesen_US
dc.titleAgricultural Technologies and Economic Development: Three Essays on Technology Adoption and Inequalityen_US
dc.typeDissertationen_US
dc.contributor.departmentEconomics, Agriculture and Life Sciencesen_US
dc.description.degreePh. D.en_US
thesis.degree.namePh. D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineEconomicsen_US
dc.contributor.committeechairNorton, George W.en_US
dc.contributor.committeechairAlwang, Jeffrey R.en_US
dc.contributor.committeememberLarochelle, Catherineen_US
dc.contributor.committeememberMills, Bradford F.en_US
dc.contributor.committeememberRichter, Susan M.en_US


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