2002
DOI: 10.1198/jasa.2002.s458
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Econometric Analysis of Count Data

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Cited by 28 publications
(16 citation statements)
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“…where a is a single constant term and where the component u i is the random heterogeneity specific to the i-th observation and is constant through time (random effect model) (Greene, 2012;Wooldridge, 2005). The distinction between the fixed and random effects models is usually based on the Hausman specification test (Hausman, 1978).…”
Section: Methodsmentioning
confidence: 99%
“…where a is a single constant term and where the component u i is the random heterogeneity specific to the i-th observation and is constant through time (random effect model) (Greene, 2012;Wooldridge, 2005). The distinction between the fixed and random effects models is usually based on the Hausman specification test (Hausman, 1978).…”
Section: Methodsmentioning
confidence: 99%
“…Parameter estimates provided in Equation (2) only provide the direction of the effect of the independent variables on the dependent variable, but not the magnitude of change or probabilities. To obtain the marginal effects of the explanatory variables, Equation (2) is differentiated with respect to the explanatory variables [23] as:…”
Section: Estimating Adoption Determinantsmentioning
confidence: 99%
“…In a later study, Guimarães et al (2003) use a Poisson regression model (Greene, 2012) to estimate the same models in Guimarães et al (2000). The estimates are different but the conclusions described above regarding the sign and significance for each attribute are equivalent.…”
Section: Attribute Descriptionmentioning
confidence: 99%
“…The authors estimated models with two different dependent variables: (1) the number of business investments per municipality-industry (1,032 observations), and (2) the number of business investments per municipality (129 observations). They use the Poisson regression model (Greene, 2012) where the independent variables are county dummy variables, a dummy variable for the city of Portland (the largest city), dummy variables controlling for the industry, and dummy variable equal to one if the location has a high school. The variables that had a positive effect on the number of business investments were: presence of a local high school; local government spending on items other than public education; municipality size; and industry concentration.…”
Section: Switzerlandmentioning
confidence: 99%