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Modelación del ingreso en México con un enfoque bayesiano. Colegio de Postgraduados
Montes Rivera, Fredy Yair.
En el presente trabajo se proponen tres distribuciones (Pareto, Lognormal y Dagum) para modelar el ingreso de la poblaci ón mexicana, lo anterior se realiz ó desde un enfoque bayesiano dado que en nuestro paí s no existe evidencia alguna de un trabajo con este enfoque. Una vez obtenidos los diferentes par ámetros de manera bayesiana de cada distribuci ón, se opta trabajar con la distribución Dagum ya que esta muestra mejor ajuste a los datos de ingreso en M éxico. Ya seleccionado el modelo se estiman los parámetros (a, b, p) de esta distribución con el uso del algoritmo "t-walk" el cual fue desarrollado por Christen y Fox (2010), esto se realizó para tres diferentes años (1998, 2002 y 2008), lo cual permiti ó realizar una comparaci ón acerca de como se...
Palavras-chave: Distribución pareto; Lognormal; Dagum; Algoritmo "t-walk"; Coeficiente de Gini; Curva de Lorenz; Pareto distribution; Gini coefficient; Lorenz curve; Maestría; Estadística; Algorithm "t-walk".
Ano: 2012 URL: http://hdl.handle.net/10521/708
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Welfare Decomposition in the Context of the Life Cycle of Farm Operators: What Does a National Survey Reveal? AgEcon
El-Osta, Hisham S.; Morehart, Mitchell J..
This paper examines the role of the life cycle in impacting the distribution of a combined income and wealth measure using data from the 2001 and 2006 Agricultural Resource Management Survey. Such an assessment is made using both graphical representation of the distribution of the well-being measure along with utilization of the social welfare decomposition procedure. Results show a mild yet statistically insignificant improvement in the distribution of the economic measure over the five-year period. Contribution to social welfare is found highest among the cohort where the age of the head of household is between 45 and 54 years. Targeted programs are found to enhance social welfare if they are aimed towards cohorts where the age of the head of household...
Tipo: Journal Article Palavras-chave: ARMS; Economic well-being; Gini coefficient; Lorenz curve; Welfare decomposition; Consumer/Household Economics.
Ano: 2009 URL: http://purl.umn.edu/55705
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Determinants of Financial Performance of Commercial Dairy Farms. AgEcon
Johnson, James D.; El-Osta, Hisham S..
Data from the 1993 Farm Costs and Returns Survey were used in a multi-variate analysis framework to determine factors associated with the financial performance of commercial dairy farm operations. Statistical equivalency tests revealed regional differences in the way extensive indebtedness, size of operation, and labor cost affect net farm incomes. Regional differences were also found in terms of how milk production per cow, per-unit cost of purchased feed, and level of adoption of capital intensive technologies affect per-unit returns. Examination of the variation in the net farm income of commercial dairy farms using the method of coefficients of separate determination identified the size of the operation, regardless of the location of the farm business,...
Tipo: Report Palavras-chave: Financial performance; Net farm income; Technological adoption; Lorenz curve; Gini coefficient; Agricultural Finance; Livestock Production/Industries.
Ano: 1998 URL: http://purl.umn.edu/33561
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Determinants of Youth Poverty: A Zip Code Analysis AgEcon
Misra, Kaustav; Debertin, David L..
Estimation of Gini coefficients for various age groups indicates that Kentucky youth population is at risk. The paper determines the factors affecting youth poverty, employing Zip Code data. Analysis of outcomes provides suggestions for the policymakers to limit youth poverty in Kentucky.
Tipo: Conference Paper or Presentation Palavras-chave: Youth; Poverty; Zip Code; Gini coefficient; Lorenz curve; Logit model; Food Security and Poverty; I32; I39; R11.
Ano: 2007 URL: http://purl.umn.edu/34899
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A quantitative analysis of forest fragmentation in Los Tuxtlas, southeast Mexico: patterns and implications for conservation RChHN
MENDOZA,EDUARDO; FAY,JOHN; DIRZO,RODOLFO.
Habitat loss is a critical threat to tropical biodiversity and its quantification constitutes a central conservation issue. Typically, assessments have been based on deforestation rates statistics. However, this overlooks the effects brought about by the spatial reconfiguration of the remaining habitat: fragmentation. We present an analysis of fragmentation in a Neotropical site aimed at: (a) devising a protocol for its quantification, (b) using such protocol to provide insights on the ecological consequences of fragmentation, (c) exploring its applicability to address the hypothesis that forest size-inequality decreases with elevation, an indicator of habitat accessibility. We applied the Gini coefficient (G) and the Lorenz curve to analyze fragment-size...
Tipo: Journal article Palavras-chave: Edge effect; Fragment shape; Gini coefficient; Lorenz curve; Tropical rain forest.
Ano: 2005 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000300008
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