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Essays on Migration and Agricultural Development
Gonzalez Velosa, Carolina - 2011
The economic consequences of international migration have spurred vigorous debates among policy makers. There also are … economies and development economists having dissenting views about the impact of emigration and remittances on source countries … local agricultural economies adapted their crop and technology mix in response to migration-induced changes in the …
Persistent link: https://www.econbiz.de/10009450914
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THE ECONOMIC EFFECTS OF MIGRATION. A ROMANIAN OVERVIEW
IVAN, Paul Panfil - 2015
Migration is a complex phenomenon, with complex and diverse implications. Meanwhile the society is in a constant change …’t migration itself, but the integration of migrants in host societies. …
Persistent link: https://www.econbiz.de/10011316220
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INVESTOR'S EXPECTATIONS OF NEW GENERATION COOPERATIVES' EQUITY
Akono, Jean H.C.; Nganje, William E.; Kaitibie, Simeon; … - 2005
investments. These changes introduced added complexity to investors' expectations of equity and to the valuation of NGC and LLC … have low trading volumes. The objective of this study is to use publicly available data of stock traded between NGC and LLC … first step, we estimate NGC and LLC earnings price ratios, and we derive investors' expectations of changes in earnings …
Persistent link: https://www.econbiz.de/10009445183
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Estimation Procedures for Multinomial Models with Overdispersion
Newcomer, Justin Travis - 2008
The phenomenon of overdispersion arises when categorical or count data exhibit variability larger than expected. Multinomial data commonly demonstrate this phenomenon when the counts arise from correlated or cluster observations. There are several ways of analyzing overdispersed multinomial...
Persistent link: https://www.econbiz.de/10009439430
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Combining mixed logit models and random effects models to identify the determinants of willingness to pay for rural landscape improvements
Campbell, Danny - 2007
This paper reports the findings from a discrete choice experiment study designed to estimate the economic benefits associated with rural landscape improvements in Ireland. Using a mixed logit model, the panel nature of the dataset is exploited to retrieve willingness to payvalues for every...
Persistent link: https://www.econbiz.de/10009445110
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Missing Covariates in Longitudinal Data with Informative Dropouts: Bias Analysis and Inference
Roy, Jason; Lin, Xihong - 2005
We consider estimation in generalized linear mixed models (GLMM) for longitudinal data with informative dropouts. At the time a unit drops out, time-varying covariates are often unobserved in addition to the missing outcome. However, existing informative dropout models typically require...
Persistent link: https://www.econbiz.de/10009476551
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A Nonlinear Model with Latent Process for Cognitive Evolution Using Multivariate Longitudinal Data
Proust, CÉcile; Jacqmin-Gadda, HÉlÈne; Taylor, … - 2006
Cognition is not directly measurable. It is assessed using psychometric tests, which can be viewed as quantitative measures of cognition with error. The aim of this article is to propose a model to describe the evolution in continuous time of unobserved cognition in the elderly and assess the...
Persistent link: https://www.econbiz.de/10009476639
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Latent Variable Models for Longitudinal Data with Multiple Continuous Outcomes
Roy, Jason; Lin, Xihong - 2000
Multiple outcomes are often used to properly characterize an effect of interest. This paper proposes a latent variable model for the situation where repeated measures over time are obtained on each outcome. These outcomes are assumed to measure an underlying quantity of main interest from...
Persistent link: https://www.econbiz.de/10009476960
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Modelling bivariate count series with excess zeros
School of Public Health
Bivariate time series of counts with excess zeros relative to the Poisson process are common in many bioscience applications. Failure to account for the extra zeros in the analysis may result in biased parameter estimates and misleading inferences. A class of bivariate zero-inflated Poisson...
Persistent link: https://www.econbiz.de/10009479406
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Modelling bivariate count series with excess zeros
Lee, Andy H.; Wang, Kui; Yau, Kelvin K.W.; Carrivick, … - 2005
Bivariate time series of counts with excess zeros relative to the Poisson process are common in many bioscience applications. Failure to account for the extra zeros in the analysis may result in biased parameter estimates and misleading inferences. A class of bivariate zero-inflated Poisson...
Persistent link: https://www.econbiz.de/10009448442