Search Results - subject:"negative binomial model"

Modeling Site Specific Heterogeneity in an On-Site Stratified Random Sample of Recreational Demand

Sardana, Kavita; Bergstrom, John C. - 2011

Using estimation of demand for the George Washington/Jefferson NationalForest as a case study, it is shown that in a stratified/clustered on-sitesample, latent heterogeneity needs to be accounted for twice: first to accountfor dispersion in the data caused by unobservability of the process that...

Persistent link: https://www.econbiz.de/10009444348

Household Credit to the Poor and its Impact on Child Schooling in Peri-urban Areas, Vietnam

Doan, Tinh; Gibson, John; Holmes, Mark - Department of Economics, Waikato Management School - 2011

on child schooling. The Probit and Negative Binomial model estimates roughly indicate no strong evidence of the effect …

Persistent link: https://www.econbiz.de/10009644450

Modeling Site Specific Heterogeneity in an On-Site Stratified Random Sample of Recreational Demand

Sardana, Kavita; Bergstrom, John C. - Agricultural and Applied Economics Association - AAEA - 2011

Using estimation of demand for the George Washington/Jefferson National Forest as a case study, it is shown that in a stratified/clustered on-site sample, latent heterogeneity needs to be accounted for twice: first to account for dispersion in the data caused by unobservability of the process...

Persistent link: https://www.econbiz.de/10009021105

Count models : with applications to price plans in mobile telecommunication industry

Greenberg, Betsy S. (contributor) - 2010

This research assesses the performance of over-dispersed Poisson regression model and negative binomial model with … depending on the segment. The RMSE and RMSEP show that the over-dispersed Poisson model outperforms the negative binomial model …

Persistent link: https://www.econbiz.de/10009429283

Rarely Enjoyed? A Count Data Analysis of Transit Ridership in Germany's Public Transport

Frondel, Manuel; Vance, Colin - 2010

Focusing on adult members of German households, this paper investigates the determinants of public transit ridership with the aim of quantifying the effects of fuel prices, fares, person-level attributes, and characteristics of the transit system on transport counts over a five-day week. The...

Persistent link: https://www.econbiz.de/10010270283

Investigating the role of poultry in livelihoods and the impact of avian flu on livelihoods outcomes in Africa

Birol, Ekin; Asare-Marfo, Dorene; Ayele, Gezahegn; … - International Food Policy Research Institute (IFPRI) - 2010

In this paper we investigate the role of poultry in households’ livelihoods portfolios and the impact of supply-and-demand shocks that may be caused by highly pathogenic avian influenza (HPAI) on households’ various livelihoods outcomes in four Sub-Saharan African (SSA) countries. The study...

Persistent link: https://www.econbiz.de/10008519791

Globalization and Knowledge Spillover: International Direct Investment, Exports and Patents

Chang, C-L.; Chen, S-P.; McAleer, M.J. - Erasmus University Rotterdam, Econometric Institute - 2010

This paper examines the impact of the three main channels of international trade on domestic innovation, namely outward direct investment, inward direct investment (IDI) and exports. The number of Triadic patents serves as a proxy for innovation. The data set contains 37 countries that are...

Persistent link: https://www.econbiz.de/10008672303

Globalization and Knowledge Spillover: International Direct Investment, Exports and Patents

Chang, Chia-Lin; Chen, Sung-Po; McAleer, Michael - Institute of Economic Research, Kyoto University - 2010

Persistent link: https://www.econbiz.de/10008506267

Investigating the Role of Poultry in Livelihoods and the Impact of HPAI on Livelihoods Outcomes in Africa: Evidence from Ethiopia, Ghana, Kenya and Nigeria

Birol, Ekin; Asare-Marfo, Dorene; Ayele, Gezahegne; … - African Association of Agricultural Economists - AAAE; … - 2010

choice methods (probit model and zero inflated negative binomial model) we profile the household, farm and regional …

Persistent link: https://www.econbiz.de/10009201481

Globalization and Knowledge Spillover: International Direct Investment, Exports and Patents

Chang, Chia-Lin; McAleer, Michael; Chang, Chang, S.P. - Faculteit der Economische Wetenschappen, Erasmus … - 2010

Persistent link: https://www.econbiz.de/10010732631