نتایج جستجو برای: l66
تعداد نتایج: 53 فیلتر نتایج به سال:
Two econometric issues arise in the structural estimation of consumer or producer demand systems in the presence of many binding non-negativity constraints. First, most existing methods entail the evaluation of multivariate probability integrals. Second, the issue of statistical coherency must be addressed. We circumvent both of these issues using Gibbs Sampling, along with data augmentation an...
Abstract Wineries in the “old world” export almost 40% of their production. This study analyzes influence vertical and horizontal networks on performance. We draw a sample 183 Spanish wineries examine main independent variables using two-step Heckman model. find positive effects and—at somewhat lower level—downstream (JEL Classifications: L66, M16, Q13)
We study the effect of outdoor air pollution on the productivity of indoor workers at a pear-packing factory. Increases in fine particulate matter (PM2.5), a pollutant that readily penetrates indoors, leads to significant decreases in productivity, with effects arising at levels below air quality standards. In contrast, pollutants that do not travel indoors, such as ozone, have little, if any, ...
This paper examines shipments of wine from European producers to various European ports. The research question focuses on disaggregated decisions on which port to use controlling for port performance, distance, and whether a national border must be crossed to reach the port. Using a mixed logit model we find heterogeneous impacts of distance, performance, and national borders on port choice acr...
The highly controversial e-cigarette industry has generated considerable policy debate and mixed regulatory responses worldwide. Surprisingly, an issue that has been largely ignored is the categorisation of e-cigarettes as substitutes or (dynamic) complements for conventional smoking. We conduct an online survey of US participants finding that 37% of e-cigarette users view them primarily as com...
Due to the problems encountered in routine morphological and physiological procedures that are used in yeast identification, DNA-based methods have recently been developed. In the present study, l66 yeast strains were isolated from several apple and citrus cultivars. After analysis by basic morphological methods, the ITS1 and ITS2 regions of the isolates were amplified separately, and the isola...
We use detailed data from a large retail panel to study the effect of participation in Supplemental Nutrition Assistance Program (SNAP) on composition and nutrient content foods purchased for at-home consumption. find that SNAP is small relative cross-sectional variation most outcomes we consider. Estimates model relating household’s food purchases current level spending imply closing gap betwe...
Traders are often blamed for high prices, prompting government regulation. We study the effects of a ban layer financing intermediaries in edible oil supply chain Bangladesh during 2011–2012. Contrary to predictions standard model an oligopolistic chain, caused downstream wholesale and retail prices rise, pass-through changes imported crude price fall. These results can be explained by extensio...
The German coffee industry has repeatedly made the puzzling statement that it would prefer higher prices of green coffee, its main input. Likewise, it supported the maintenance of the coffee tax. In this paper, an oligopoly model with differentiated products is used to illustrate the possibility of profit-raising cost-increases. The relationship between prices and costs of roasted coffee in Ger...
Nelson investigated advertising placements for a diverse sample of 28 magazines and concluded that targeting of underage youth by alcohol advertisers was not occurring. Siegel et al. claim that my results suffer from collinearity, but fail to present a comprehensive measure of multicollinearity. For my model, variance inflation factors are within acceptable limits and estimation using redefined...
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