نتایج جستجو برای: pseudo panel
تعداد نتایج: 133951 فیلتر نتایج به سال:
The objective of this paper is to analyse to what extent the use of cross-section data will distort the estimated elasticities for car ownership demand when the observed variables do not correspond to a state equilibrium for some individuals in the sample. Our proposal consists of approximating the equilibrium values of the observed variables by constructing a pseudo-panel data set which entail...
This paper revisits the competition-innovation relationship using an unbalanced panel of enterprise data stemming from four waves of the Luxembourgish innovation survey for the period 2002-2010. We estimate by full-information maximum likelihood a nonlinear dynamic simultaneous-equations model with pseudo-fixed effects using four measures of perceived competition and three indicators of innovat...
This paper evaluates the effectiveness of California anti-smoking media campaign in changing smoking behavior of adults and adolescents, in the short run as well as in the long run, through individual self-reported exposure to the media message. We construct pseudo panel data using repeated cross sections, and employ instrumental variables method to address the endogeneity problem. Overall, the...
purpose: to report a case who had optic disc duplication, a rare congenital disorder characterized by two well-defined discs in one eye. case report: a 19 months-old child presented with unilateral epiphora in the right eye since birthday. the right eye was smaller than the left eye and mild ptosis was apparent. nasolacrimal duct probing was performed under general anesthesia. the examination r...
This paper employs a pseudo-panel approach to study vehicle ownership evolution in Montreal region, Canada using cross-sectional origin-destination (O-D) survey datasets of 1998, 2003 and 2008. Econometric modeling approaches that simultaneously accommodate the influence of observed and unobserved attributes on the vehicle ownership decision framework are implemented. Specifically, we estimate ...
In this paper, we present one of the first direct microeconometric studies of the impact of trade protection on household income in Ghana. Tariff measures at the two-digit ISIC level are matched to Ghanaian household survey data for 1991/92 and 1998/99 to represent the tariff for the industry in which the household head is employed. We examine the possibility that the effect of protection on in...
Pseudo hypobicarbonatemia is a rare phenomenon associated with spuriously low bicarbonate levels in the presence of elevated triglycerides (TG). TG’s interfere commonly used enzymatic assays basic metabolic panel (BMP), giving falsely levels. It adds to diagnostic dilemma and possible extensive workup identify cause. Previous case reports have plasmapheresis these settings. We report successful...
This paper presents an experimental evaluation of the flexural response non-load bearing precast concrete insulated partially-composite wall panels fabricated with varying layouts ductile shear ties. The out-of-plane, one-way, single span load-displacement relationship is obtained for each panel via pseudo-static testing using a water bladder apparatus. Panel specimens constructed several tie a...
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