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  • 1
    Online Resource
    Online Resource
    Cheaper, Faster, and More Than Good Enough : Is GPS the New Gold Standard in Land Area Measurement? (2016)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: 1 Online-Ressource (50 p)
    Series Statement: World Bank E-Library Archive
    Parallel Title: Erscheint auch als Carletto, Calogero Cheaper, Faster, and More Than Good Enough: Is GPS the New Gold Standard in Land Area Measurement?
    Abstract: In rural societies of low- and middle-income countries, land is a major measure of wealth, a critical input in agricultural production, and a key variable for assessing agricultural performance and productivity. In the absence of cadastral information to refer to, measures of land plots have historically been taken with one of two approaches: traversing (accurate, but cumbersome), and farmers' self-report (cheap, but marred by measurement error). Recently, the advent of cheap handheld GPS devices has held promise for balancing cost and precision. Guided by purposely collected primary data from Ethiopia, Nigeria, and Tanzania (Zanzibar), and with consideration for practical household survey implementation, the paper assesses the nature and magnitude of measurement error under different measurement methods and proposes a set of recommendations for plot area measurement. The results largely point to the support of GPS measurement, with simultaneous collection of farmer self-reported areas
    DOI: 10.1596/1813-9450-7759
    URL: Volltext  (Deutschlandweit zugänglich)
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    MPI Ethno. Forsch.
  • 2
    Online Resource
    Online Resource
    Non-Traditional Crops, Traditional Constraints : The Adoption And Diffusion of Export Crops Among Guatemalan Smallholders (2007)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (1 online resource (44 p.))
    Edition: Online-Ausg. World Bank E-Library Archive
    Parallel Title: Carletto, Calogero Non-Traditional Crops, Traditional Constraints
    Keywords: Agricultural production ; Agriculture ; Crops ; Debt Markets ; Economic Theory and Research ; Economics ; Farmers ; Finance and Financial Sector Development ; Food production ; Incomes ; Macroeconomics and Economic Growth ; Marketing ; Markets and Market Access ; Nutrition ; Poverty Reduction ; Poverty alleviation ; Rural Development ; Rural Development Knowledge and Information Systems ; Rural Poverty Reduction ; Agricultural production ; Agriculture ; Crops ; Debt Markets ; Economic Theory and Research ; Economics ; Farmers ; Finance and Financial Sector Development ; Food production ; Incomes ; Macroeconomics and Economic Growth ; Marketing ; Markets and Market Access ; Nutrition ; Poverty Reduction ; Poverty alleviation ; Rural Development ; Rural Development Knowledge and Information Systems ; Rural Poverty Reduction ; Agricultural production ; Agriculture ; Crops ; Debt Markets ; Economic Theory and Research ; Economics ; Farmers ; Finance and Financial Sector Development ; Food production ; Incomes ; Macroeconomics and Economic Growth ; Marketing ; Markets and Market Access ; Nutrition ; Poverty Reduction ; Poverty alleviation ; Rural Development ; Rural Development Knowledge and Information Systems ; Rural Poverty Reduction
    Abstract: This paper uses a duration analysis based on adoption data spanning more than 25 years from six communities in the Central Highlands of Guatemala. The analysis explores how household characteristics and external trends play into both the adoption and diffusion processes of non-traditional exports among smallholders. Adoption was initially widespread and rapid, which led nontraditional exports to be hailed as a pro-poor success, reaching all but the smallest landholders. However, over time more than two-thirds of adopters eventually dropped out of production of nontraditional exports. Based on the analysis, production of nontraditional exports appears to have delivered less prosperity to adopters than initially promised. Although smallholders may be enticed into entering into nontraditional exports markets when conditions are favorable, they may lack the capacity to overcome the difficulties that inevitably arise in complex types of cultivations and in highly variable global agricultural markets. Governmental and non-governmental organizations can attempt to mitigate these difficulties, but market forces may overwhelm their efforts, with some adopters still unable to compete in global markets
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 3
    Online Resource
    Online Resource
    Fact or Artefact : The Impact of Measurement Errors on the Farm Size - Productivity Relationship (2011)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (24 p)
    Edition: 2011 World Bank eLibrary
    Parallel Title: Carletto, Calogero Fact or Artefact
    Abstract: This paper revisits the role of land measurement error in the inverse farm size and productivity relationship. By making use of data from a nationally representative household survey from Uganda, in which self-reported land size information is complemented by plot measurements collected using Global Position System devices, the authors reject the hypothesis that the inverse relationship may just be a statistical artifact linked to problems with land measurement error. In particular, the paper explores: (i) the determinants of the bias in land measurement, (ii) how this bias varies systematically with plot size and landholding, and (iii) the extent to which land measurement error affects the relative advantage of smallholders implied by the inverse relationship. The findings indicate that using an improved measure of land size strengthens the evidence in support of the existence of the inverse relationship
    DOI: 10.1596/1813-9450-5908
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 4
    Article
    Article
    Households and income in Africa (2015)
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    In:  The Oxford handbook of Africa and economics ; Vol. 1: Context and concepts (2015), Seite 46-58 | year:2015 | pages:46-58
    Details
    ISBN: 9780199687114
    Language: English
    Pages: graph. Darst.
    Titel der Quelle: The Oxford handbook of Africa and economics ; Vol. 1: Context and concepts
    Publ. der Quelle: Oxford [u.a.] : Oxford Univ. Press, 2015
    Angaben zur Quelle: (2015), Seite 46-58
    Angaben zur Quelle: year:2015
    Angaben zur Quelle: pages:46-58
    Keywords: Aufsatz im Buch
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    MPI-MMG
  • 5
    Online Resource
    Online Resource
    Agricultural Data Collection to Minimize Measurement Error and Maximize Coverage (2021)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: 1 Online-Ressource (93 pages)
    Parallel Title: Erscheint auch als Print Version: Carletto, Calogero Agricultural Data Collection to Minimize Measurement Error and Maximize Coverage
    Keywords: Agricultural Knowledge and Information Systems ; Agricultural Research ; Agricultural Sector Economics ; Agriculture ; Data Collection ; Survey Design
    Abstract: Advances in agricultural data production provide ever-increasing opportunities for pushing the research frontier in agricultural economics and designing better agricultural policy. As new technologies present opportunities to create new and integrated data sources, researchers face trade-offs in survey design that may reduce measurement error or increase coverage. This paper first reviews the econometric and survey methodology literatures that focus on the sources of measurement error and coverage bias in agricultural data collection. Second, it provides examples of how agricultural data structure affects testable empirical models. Finally, it reviews the challenges and opportunities offered by technological innovation to meet old and new data demands and address key empirical questions, focusing on the scalable data innovations of greatest potential impact for empirical methods and research
    DOI: 10.1596/1813-9450-9745
    URL: Deutschlandweit zugänglich
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  • 6
    Online Resource
    Online Resource
    Agency, Education And Networks : Gender And International Migration From Albania (2008)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (1 online resource (35 p.))
    Edition: Online-Ausg. World Bank E-Library Archive
    Parallel Title: Stecklov, Guy Agency, Education And Networks
    Keywords: Anthropology ; Communities & Human Settlements ; Culture & Development ; Family members ; Health, Nutrition and Population ; Human Migrations and Resettlements ; Human Rights ; International Migration ; International migrant ; Law and Development ; Living Standards ; Policy ReseaRch ; Policy ReseaRch WoRking PaPeR ; Population Policies ; Progress ; Social Development ; Traditional societies ; Unmarried women ; Voluntary and Involuntary Resettlement ; War ; Anthropology ; Communities & Human Settlements ; Culture & Development ; Family members ; Health, Nutrition and Population ; Human Migrations and Resettlements ; Human Rights ; International Migration ; International migrant ; Law and Development ; Living Standards ; Policy ReseaRch ; Policy ReseaRch WoRking PaPeR ; Population Policies ; Progress ; Social Development ; Traditional societies ; Unmarried women ; Voluntary and Involuntary Resettlement ; War ; Anthropology ; Communities & Human Settlements ; Culture & Development ; Family members ; Health, Nutrition and Population ; Human Migrations and Resettlements ; Human Rights ; International Migration ; International migrant ; Law and Development ; Living Standards ; Policy ReseaRch ; Policy ReseaRch WoRking PaPeR ; Population Policies ; Progress ; Social Development ; Traditional societies ; Unmarried women ; Voluntary and Involuntary Resettlement ; War
    Abstract: This paper examines the causes and dynamics of the shift in the gender composition of migration, and more particularly, in the access of women to migration opportunities and decision making. The context of the analysis is Albania, a natural laboratory for studying migration developments given that out-migration was practically eliminated from the end of World War II to the end of the 1980s. The authors use micro-level data from the Albania 2005 Living Standards Measurement Study including migration histories for family members since migration began. Based on discrete-time hazard models, the analysis shows an impressive expansion of female participation in international migration. Female migration, which is shown to be strongly associated with education, wealth, and social capital, appears responsive to economic incentives and constraints. Yet, using unique data on the dependency of female migration to the household demographic structure as well as the sensitivity of female migration to household-level shocks, the authors show that it is the households themselves that are the decision-making agents behind this economic calculus and there is little to suggest that increased female migration signals the emergence of female agency
    URL: Volltext  (Deutschlandweit zugänglich)
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    MPI Ethno. Forsch.
  • 7
    Online Resource
    Online Resource
    Missing(ness) in Action : Selectivity Bias in GPS-Based Land Area Measurements (2013)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (31 p)
    Edition: 2013 World Bank eLibrary
    Parallel Title: Kilic, Talip Missing(ness) in Action
    Abstract: Land area is a fundamental component of agricultural statistics, and of analyses undertaken by agricultural economists. While household surveys in developing countries have traditionally relied on farmers' own, potentially error-prone, land area assessments, the availability of affordable and reliable Global Positioning System (GPS) units has made GPS-based area measurement a practical alternative. Nonetheless, in an attempt to reduce costs, keep interview durations within reasonable limits, and avoid the difficulty of asking respondents to accompany interviewers to distant plots, survey implementing agencies typically require interviewers to record GPS-based area measurements only for plots within a given radius of dwelling locations. It is, therefore, common for as much as a third of the sample plots not to be measured, and research has not shed light on the possible selection bias in analyses relying on partial data due to gaps in GPS-based area measures. This paper explores the patterns of missingness in GPS-based plot areas, and investigates their implications for land productivity estimates and the inverse scale-land productivity relationship. Using Multiple Imputation (MI) to predict missing GPS-based plot areas in nationally-representative survey data from Uganda and Tanzania, the paper highlights the potential of MI in reliably simulating the missing data, and confirms the existence of an inverse scale-land productivity relationship, which is strengthened by using the complete, multiply-imputed dataset. The study demonstrates the usefulness of judiciously reconstructed GPS-based areas in alleviating concerns over potential measurement error in farmer-reported areas, and with regards to systematic bias in plot selection for GPS-based area measurement
    DOI: 10.1596/1813-9450-6490
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 8
    Article
    Article
    Income generation strategies among Nicaraguan agricultural producers (2001)
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    In:  Land and sustainable livelihood in Latin America (2001), Seite 169-187 | year:2001 | pages:169-187
    Details
    ISBN: 3893541284
    Language: Undetermined
    Titel der Quelle: Land and sustainable livelihood in Latin America
    Publ. der Quelle: Amsterdam [u.a.] : Royal Tropical Inst. [u.a.], 2001
    Angaben zur Quelle: (2001), Seite 169-187
    Angaben zur Quelle: year:2001
    Angaben zur Quelle: pages:169-187
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