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  • 1
    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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    MPI Ethno. Forsch.
  • 2
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    Online Resource
    From Guesstimates to GPStimates : Land Area Measurement and Implications for Agricultural Analysis (2013)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (29 p)
    Edition: 2013 World Bank eLibrary
    Parallel Title: Carletto, Calogero From Guesstimates to GPStimates
    Abstract: Land area measurement is a fundamental component of agricultural statistics and analysis. Yet, commonly employed self-reported land area measures used in most analysis are not only potentially measured with error, but these errors may be correlated with agricultural outcomes. Measures employing Global Positioning Systems, on the other hand, while not perfect especially on smaller plots, are likely to provide more precise measures and errors less correlated with agricultural outcomes. This paper uses data from four African countries to compare the use of self-reported and Global Positioning Systems land measures to (1) examine the differences between the measures, (2) identify the sources of the differences, and (3) assess the implications of the different measures on agricultural analysis focusing on the inverse productivity relationship. The results indicate that self-reported land areas systematically differ from Global Positioning Systems land measures and that this difference leads to potentially biased estimates of the relationship between land and productivity
    DOI: 10.1596/1813-9450-6550
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 3
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    Online Resource
    Informing Migration Policies : A Data Primer (2014)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (60 p)
    Edition: 2014 World Bank eLibrary
    Parallel Title: Carletto, Calogero Informing Migration Policies
    Abstract: Researchers in many fields, such as demography, economics, and sociology, have established various data collection methodologies and principles to answer a range of academic and policy questions on migration. Although the progress has been impressive, some basic challenges remain. This paper addresses some basic, yet fundamental, questions on identification of international migrants and how their various demographic, personal, and human capital characteristics are captured via different data sources. The critical issues are the construction of proper sampling frames in censuses, registers, and surveys and the design of questionnaires in household, labor market, and other relevant surveys. The paper discusses how these data sources can be used to answer policy questions in areas such as labor markets, education, or poverty. The focus is on how some of the existing shortcomings in availability, quality, and relevance of migration data can be overcome via improvements in data collection methods
    DOI: 10.1596/1813-9450-7082
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 4
    Online Resource
    Online Resource
    Non-Traditional Crops, Traditional Constraints : Long-Term Welfare Impacts of Export Crop Adoption Among Guatemalan Smallholders (2009)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (27 p)
    Edition: 2009 World Bank eLibrary
    Parallel Title: Carletto, Calogero Non-Traditional Crops, Traditional Constraints
    Abstract: This study documents the long-term welfare effects of household non-traditional agricultural export (NTX) adoption. The analysis uses a unique panel dataset, which spans the period 1985-2005, and employs difference-in-differences estimation to investigate the long-term impact of non-traditional agricultural export adoption on changes in household consumption status and asset position in the Central Highlands of Guatemala. Given the heterogeneity in adoption patterns, the analysis differentiates the impact estimates based on a classification of households that takes into account the timing and duration of non-traditional agricultural export adoption. The results show that while, on average, welfare levels have improved for all households irrespective of adoption status and duration, the extent of improvement has varied across groups. Long-term adopters exhibit the smallest increase in the lapse of two decades, in spite of some early gains. Conversely, early adopters who withdrew from non-traditional agricultural export production after reaping the benefits of the boom period of the 1980s are found to have fared better and shown greater improvements in durable asset position and housing conditions than any other category
    DOI: 10.1596/1813-9450-5142
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 5
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    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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  • 6
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    Online Resource
    Moving up the ladder? : the impact of migration experience on occupational mobility in Albania (2009)
    [Washington, D.C] : World Bank
    Details
    Language: English
    Pages: Online-Ressource
    Edition: 2009 World Bank eLibrary Also available in print
    Series Statement: Policy research working paper 4908
    Parallel Title: Carletto, Calogero Moving up the ladder?
    Keywords: Occupational mobility ; Return migration ; Occupational mobility ; Return migration
    Abstract: "The contribution of return migrants to economic development in source countries can be significant. Overseas savings of returnees may lead to improvements in household welfare and provide liquidity for investments in the face of credit market failures. Labor market experience and skills acquired abroad may also lead migrants to find occupations higher in the skill and remuneration spectrum upon return. This study uses the 2005 Albanian Living Standards Measurement Study Survey and estimates the impact of international migration experience on the occupational mobility of return migrants vis a vis working-age Albanian residents that never migrated. Controlling for the non-random nature of international migration and return, the results show that past migration experience increases the likelihood of upward occupational mobility. Exploring the heterogeneity of impact by host country indicates that the positive effect of past migration experience on upward occupational mobility is driven by past migration experience in Italy and countries further a field, while past migration experience in Greece does not exert any significant impact on mobility outcomes. The results, which are consistent across different sample specifications and outcome variables measuring occupational mobility, hint at the link between migration and human/financial capital formation among migrants and foster optimism concerning the positive effect of return migration on economic development. This insight is particularly important since remittances from permanent migrants, which have fueled the impressive growth performance of the country in the recent era, may taper off in the medium to long term with the decline in out-migration and growing global economic woes. "--World Bank web site
    Note: Includes bibliographical references , Title from PDF file as viewed on 5/7/2009 , Also available in print.
    DOI: 10.1596/1813-9450-4908
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 7
    Online Resource
    Online Resource
    Modeling Migration Dynamics in Albania : A Hazard Function Approach (2009)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (29 p)
    Edition: 2009 World Bank eLibrary
    Parallel Title: Azzarri, Carlo Modeling Migration Dynamics in Albania
    Abstract: Since 1990 migration flows from Albania have been massive, relative to the size of the country and its population, but they have also fluctuated over time. This paper presents and discusses various descriptive trends, mainly in graphical form. The data come from the Albanian Living Standards Measurement Survey, 2005 round, and cover the period 1990-2004. The resulting observed trends reflect changing push and pull factors in Albania and the two main host countries, Greece and Italy. The paper also presents a hazard approach to modeling Albanian emigration and return migration. This analysis highlights, among other things, the relevance of networks in Albanian migration dynamics, both to promote emigration and to delay return
    DOI: 10.1596/1813-9450-4945
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 8
    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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  • 9
    Online Resource
    Online Resource
    Reliability of Recall in Agricultural Data (2011)
    Washington, D.C : The World Bank
    Details
    Language: English
    Pages: Online-Ressource (29 p)
    Edition: 2011 World Bank eLibrary
    Parallel Title: Beegle, Kathleen Reliability of Recall in Agricultural Data
    Abstract: Despite the importance of agriculture to economic development, and a vast accompanying literature on the subject, little research has been done on the quality of the underlying data. Due to survey logistics, agricultural data are usually collected by asking respondents to recall the details of events occurring during past agricultural seasons that took place a number of months prior to the interview. This gap can lead to recall bias in reported data on agricultural activities. The problem is further complicated when interviews are conducted over the course of several months, thus leading to recall of variable length. To test for such recall bias, the length of time between harvest and interview is examined for three African countries with respect to several common agricultural input and harvest measures. The analysis shows little evidence of recall bias impacting data quality. There is some indication that more salient events are less subject to recall decay. Overall, the results allay some concerns about the quality of some types of agricultural data collected through recall over lengthy periods
    DOI: 10.1596/1813-9450-5671
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 10
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    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.
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