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Recursos bibliográficos en papel y digitales -
- libros, artículos de revistas,
ponencias de eventos, etc. -
» Resultado:
20 registros
| Registro 1 de 20 |
| Autor: |
Mulenga, Brian P. - Richardson, Robert B. - Tembo, Gelson - Mapemba, Lawrence |
| Título: |
Rural household participation in markets for non-timber forest products in Zambia |
| Fuente: |
Environment and Development Economics. v.19, n.4. Beijer Institute of Ecological Economics; Royal Swedish Academy of Sciences |
| Páginas: |
pp. 487-504 |
| Año: |
Aug. 2014 |
| Resumen: |
Non-timber forest products (NTFPs) support livelihoods in rural communities through provision of food, fuel, materials, medicines and income from sales. We estimated the contribution of NTFPs to rural household income in Zambia, and used a two-stage tobit alternative model to identify the factors associated with participation in NTFP markets. NTFPs accounted for 35 per cent of household income for participating households, second only to trading. Human capital variables and the value of assets were found to be significant determinants of both participation in business activities related to NTFPs and the associated household income, and the poor were more dependent on NTFPs than wealthier households. The effect of average rainfall underscores the role that NTFPs play in providing a safety net during periods of low crop yields. Rural development policies should recognize the role played by NTFPs in rural livelihoods and the need to balance welfare improvement and sustainable forest management. |
| Palabras clave: |
ZONAS RURALES |
PRODUCTORES RURALES |
MERCADO |
CALIDAD DE VIDA |
|
| Solicitar por: |
HEMEROTECA E + datos de Fuente |
| Registro 2 de 20 |
| Autor: |
Berges, Miriam - Hedo, Juan Pablo - |
| Título: |
Estimaciones de la disposición a pagar por atributos de calidad en los alimentos |
| Fuente: |
FACES. año 17, n.36/37. Universidad Nacional de Mar del Plata. Facultad de Ciencias Económicas y Sociales |
| Páginas: |
pp. 7-31 |
| Año: |
ene.-dic. 2011 |
| Texto completo: |
 |
| Resumen: |
En los últimos años, el mercado de alimentos ha sufrido cambios tanto por el lado de la demanda como por el de la oferta. Dichas transformaciones se relacionan con mayores exigencias de calidad y seguridad pedidas por los consumidores o requeridas por los organismos estatales para la autorización de la comercialización de los productos. No obstante, la incorporación de nuevos atributos de calidad y seguridad puede generar problemas de incertidumbre si éstos no son fácilmente observables. En este trabajo, utilizando el método de Valoración Contingente, se estima la disposición a pagar (DAP) por dos atributos de calidad: la adición de zinc y la certificación de que es un proceso inocuo de producción. Mediante la aplicación de un modelo Tobit y un modelo Heckit se estimaron los valores de la DAP y se corrigió la censura y el sesgo de selección que presentaban los datos. La técnica no paramétrica Turnbull da idea de límite inferior. Los valores medios estimados para el Zinc y el proceso resultaron: 14 porciento y 13 porciento por Tobit; 18 porciento y 16 porciento por Turnbull; 25 porciento y 27 porciento por Heckit. Los datos provienen de una encuesta realizada en Mar del Plata en mayo de 2008. |
| Palabras clave: |
DISPOSICION A PAGAR |
ATRIBUTOS DE CALIDAD |
ALIMENTOS |
VALUACION CONTINGENTE |
|
| Solicitar por: |
HEMEROTECA FCEYS F + datos de Fuente |
| Registro 3 de 20 |
| Autor: |
Tan, Andrew - Yen, Steven T. - Loke, Yiing Jia |
| Título: |
Credit card holders, convenience users and resolvers: a tobit model with binary selection and ordinal treatment |
| Fuente: |
Journal of Applied Economics. v.14, n.2. Universidad del CEMA |
| Páginas: |
pp. 225-255 |
| Año: |
Nov. 2011 |
| Resumen: |
This paper studies the characteristics of credit card holders in Malaysia and distinguishes between convenience users and revolvers. A Tobit model with binary selection and ordinal treatment is developed to accommodate the data feature that debts are incurred only among card holders and the endogeneity of card holding in card debt. Results from a stratified sample in Malaysia indicate that age, household size, income, education, loan commitments, and current-account ownership play a role in card holding. Age, loan commitments, previous card holdings, current-account ownership, and bad debt history affect the probability and level of card debt. Multi-card holders are more likely to be credit revolvers than convenience users. |
| Palabras clave: |
SISTEMA FINANCIERO |
BANCOS |
MODELOS ECONOMETRICOS |
INGRESOS DE HOGARES |
DATOS ESTADISTICOS |
CREDITO |
ESTUDIO DE CASOS |
FINANCIAMIENTO |
TARJETAS DE CREDITO |
MODELO TOBIT |
|
| Solicitar por: |
HEMEROTECA J + datos de Fuente |
| Registro 4 de 20 |
| Autor: |
Yu, Xiaohua - Abler, David |
| Título: |
Incorporating zero and missing responses into CVM with open-ended bidding: willingness to pay for blue skies in Beijing |
| Fuente: |
Environment and Development Economics. v.15, n.5. Beijer Institute of Ecological Economics; Royal Swedish Academy of Sciences |
| Páginas: |
pp. 535-556 |
| Año: |
Oct. 2010 |
| Resumen: |
Based on decision theory, this paper suggests a four-hurdle model to deal with zero and missing responses in the contingent valuation method with open-ended bidding, which is used to analyze the willingness to pay for blue skies in Beijing where air pollution is known to be very serious. The mean and the median of the predicted willingness to pay for blue skies per household are, respectively, 120.15 and 128.60 yuan, less than 0.2 per cent of the per capita annual disposal income in Beijing. This is very low compared to results from studies of other countries. The empirical results also indicate that the four-hurdle model is superior to the Tobit model and raw data estimation. |
| Solicitar por: |
HEMEROTECA E + datos de Fuente |
| Registro 5 de 20 |
| Autor: |
Torre, Adela de la - Havenner, Arthur - Adams, Katerine - Ng, Justin |
| Título: |
Pemium sex: factors influencing the negotiated price of unprotected sex by female sex workers in México |
| Fuente: |
Journal of Applied Economics. v.13, n.1. Universidad del CEMA |
| Páginas: |
pp. 67-90 |
| Año: |
May 2010 |
| Resumen: |
This paper examines economic, sociocultural, and behavioral risk factors that influence the compensating price difference (premium paid) between sex with and without a condom for female sex workers (FSWs) in U.S.-Mexico border cities. Field data collected in Ciudad Juarez on the price of sex with and without a condom for the same FSW respondent allowed calculation of the price premium for unprotected sex based on these paired prices, holding unobservable characteristics constant. A Tobit model was used to identify the factors determining the price premium. Key predictors of a larger price premium for sex without a condom included: length of time as a FSW; number of male clients; and participation in HIV education. Key predictors of a decrease in the price premium for unprotected sex included: age; a bad financial situation; frequent alcohol consumption before or during sex; and frequent drug use before or during sex. |
| Palabras clave: |
PRECIOS |
PROSTITUCION |
PRESERVATIVOS |
FACTORES DE RIESGO |
TRABAJADORAS SEXUALES | |
| Solicitar por: |
HEMEROTECA J + datos de Fuente |
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