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| Registros recuperados: 29 | |
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| Sauer, Johannes; Davidova, Sophia; Latruffe, Laure. |
| The objective of this article is to investigate why farmers in Kosovo leave land fallow when the total land of their farms is small and households, almost fully dependent on farming for their livelihoods, are large. In order to elicit some of the barriers to land utilization, the article uses a comprehensive survey carried out during the agricultural year 2005/2006 to explore agricultural households’ perceptions of production, market conditions, and general security six years after the end of the military conflict in the former Yugoslavia. Several agro-environmental, household and farm characteristics are employed to empirically approximate the significance of different factors for leaving land fallow. Three different econometric models are used to address... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Fallow land decision; Kosovo; Endogeneity; Community/Rural/Urban Development; C24; Q12; Q15. |
| Ano: 2010 |
URL: http://purl.umn.edu/94917 |
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| Chen, Min; Lupi, Frank. |
| Different kinds of endogeneity problems in Random Utility Models of recreation demand have been studied in previous literature. Some site characteristics, like facilities, could be endogenous in an economic sense due to the interplay of supply and demand. That is, it may be that more popular recreation sites tend to have better site characteristics since managers with limited budgets would be more willing to invest in them. If recreation site improvements are more likely to occur at the more popular sites, then might this economic endogeneity cause problems for econometric models linking site demand to facilities. In this paper, we use Monte Carlo simulations to test whether this economic endogeneity will lead to statistical endogeneity. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Random Utility Models; Facilities; Endogeneity; Monte Carlo simulations; Environmental Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/49449 |
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| Chen, Min. |
| Random Utility Models of recreation demand are widely used to relate demand and value to the characteristics of recreation sites. Although some kinds of endogeneity problems have been studied in previous literature, no study has addressed the potential problem with site characteristics that are endogenously supplied. Some site characteristics, like facilities, could be endogenous in an economic sense due to the interplay of supply and demand. That is, more popular recreation sites tend to have better site characteristics since managers with limited budgets would be more willing to invest in them. If recreation site improvements are more likely to occur at the more popular sites, then this economic endogeneity might cause problems for econometric models... |
| Tipo: Thesis or Dissertation |
Palavras-chave: Random Utility Maximization models; Facilities; Endogeneity; Monte Carlo simulations; Environmental Economics and Policy; Q51. |
| Ano: 2009 |
URL: http://purl.umn.edu/55808 |
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| Chapoto, Antony; Jayne, Thomas S.. |
| Using comprehensive rural farm household longitudinal data from Zambia, this paper measures the impacts of prime-age (PA) adult morbidity and mortality on crop production and cropping patterns, household size, livestock and non-farm income. The paper adopts and extends the counterfactual (difference-in-difference) approach by controlling for initial (pre-death) household conditions that may influence the severity of the impacts of adult mortality. In particular, the study controls for initial poverty status, landholding size, effective dependency ratios, and the gender and position of the deceased person. Moreover, the possibility that PA death in the household is endogenous is taken into account by conceptualizing the measurement of effects of... |
| Tipo: Report |
Palavras-chave: Food security; Food policy; HIV/AIDS; Prime-age mortality; Endogeneity; Rural livelihoods; Food Security and Poverty; Health Economics and Policy; Q18. |
| Ano: 2005 |
URL: http://purl.umn.edu/54473 |
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| Poi, Brian P.. |
| The two-stage least-squares (2SLS) instrumental variables estimator is commonly used to address endogeneity. However, the estimator suffers from bias that is exacerbated when the instruments are only weakly correlated with the endogenous variables and when many instruments are used. In this article, I discuss jackknife instrumental variables estimation as an alternative to 2SLS. Monte Carlo simulations comparing the jackknife instrument variables estimators to 2SLS and limited information maximum likelihood (LIML) show that two of the four variants perform remarkably well even when 2SLS does not. In a weak-instrument experiment, the two best performing jackknife estimators also outperform LIML. |
| Tipo: Journal Article |
Palavras-chave: Jive; 2SLS; LIML; JIVE; Instrumental variables; Endogeneity; Weak instruments; Research Methods/ Statistical Methods. |
| Ano: 2006 |
URL: http://purl.umn.edu/117586 |
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| Registros recuperados: 29 | |
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