Search results for "Econometric"
showing 10 items of 3780 documents
Study on the financial performance of companies operating in the pharmaceutical industry in romania
2016
Abstract The study aims at determining the financial performance of companies in the pharmaceutical industry between 2009 and 2014 by means of the indicator of the financial return rate, using multiple linear regressions as research method. By analysing the evolution of the share of companies in the pharmaceutical industry based on the trend of the financial rate of return, we can estimate that the number of entities that resort to supporting the financial activities from loans and liabilities is growing in the period under analysis. This is due mainly to the liquidity crisis faced by entities, as a result of the high recovery duration of debts. Also, using the multiple linear regression we…
The three wives problem and Shapley value
2015
We examine the Talmudic three wives problem, which is a generalization of the Talmudic contested garment problem solved by Aumann and Maschler (1985) using coalitional procedure. This problem has many practical applications. In an attempt to unify all Talmudic methods, Guiasu (2010, 2011) asserts that it can be explained in terms of “run-to-the-bank”, that is, of Shapley value in a “cumulative game”. It can be challenged because the coalitional procedure yields the same result as the nucleolus, which corresponds to a “dual game”. As Guiasu's solution is paradoxical (it has all the appearances of truth), my contribution consists in explaining the concepts, particularly truncation, that play …
Uncertainty in urban stormwater quality modelling: The effect of acceptability threshold in the GLUE methodology
2007
Uncertainty analysis in integrated urban drainage modelling is of growing importance in the field of water quality. However, only few studies deal with uncertainty quantification in urban drainage modelling; furthermore, the few existing studies mainly focus on quantitative sewer flow modelling rather than uncertainty in water quality aspects. In this context, the generalised likelihood uncertainty estimation (GLUE) methodology was applied for the evaluation of the uncertainty of an integrated urban drainage model and some of its subjective hypotheses have been explored. More specifically, the influence of the subjective choice of the acceptability threshold has been detected in order to ga…
Can Dasymetric Mapping Significantly Improve Population Data Reallocation in a Dense Urban Area?
2016
The issue of reallocating population figures from a set of geographical units onto another set of units has received a great deal of attention in the literature. Every other day, a new algorithm is proposed, claiming that it outperforms competitor procedures. Unfortunately, when the new (usually more complex) methods are applied to a new data set, the improvements attained are sometimes just marginal. The relationship cost-effectiveness of the solutions is case-dependent. The majority of studies have focused on large areas with heterogeneous population density distributions. The general conclusion is that as a rule more sophisticated methods are worth the effort. It could be argued, however…
Ecological assessment of developing carbon sequestration in Shenyang, China
2012
Carbon sequestration in urban ecosystems is becoming an international climate change initiative for sustainable development. Drawing upon field work undertaken in the author's native Shenyang, China, this research reports upon the natural process of carbon sequestration from the atmosphere into urban ecosystems. The risks associated within carbon sequestration in urban ecosystems are investigated and utilised the analysis of ecological carbon cycle status and integrated climate policy with reference to the sustainable development of urban planning. The primary method of this paper is the ecologically–based life assessment of urban ecosystems relevant to tackling barriers for developing carb…
Measuring economic inequality in Southern Europe: the Iberian Peninsula in the 14th-17th centuries
2020
This work explores the inequality of wealth in Spain during the late Middle Ages from six cities located in the kingdoms of Castile (Seville) and the Crown of Aragon (Barcelona, Valencia, Mallorca, Castelló and Valls), through tax sources that inform about the wealth of each taxpayer. These records provide very precise data on the wealth distribution that allow us to study inequality in an aggregate manner for the same city and, at the same time, perform sectoral analyses according to gender, different socio-professio¬nal groups and urban districts.
La gratuité à un prix !
2008
National audience; Cet article aborde la question des représentations de la gratuité par les publics des musées et des monuments nationaux français. Dans le domaine culturel et dans une perspective individuelle, ces représentations sont liées à celles du prix, de l'argent et du fait de payer. La gratuité est vue comme un prix : elle supprime le coût monétaire lié à la visite mais ne change rien aux autres coûts monétaires et non monétaires dont elle modifie cependant la perception. Elle annule ce que représente le fait de payer l'entrée : visa » d'entrée dans les musées et les monuments, distance créée entre le visiteur et ces lieux, formalisation de l'engagement du visiteur. Enfin, la grat…
The migration–tourism nexus in the EU28
2020
This study explores the nexus between tourism and migration on an intra-European scale over the period 2000–2015. Complex-network analysis and gravity models were the investigation methods preferred. For each year under study, we built two country-to-country networks to map and reveal the connections between states as shaped by migration stocks and tourism flows, respectively. Then, the main determinants of the correlation patterns between the two networks were investigated by several econometric analysis. Results point to a quite similar topological structure for the tourism and migration networks as well as to a significant and reciprocal direct influence between tourism and migration mo…
The determinants of FDI: a new network-based approach
2022
This article investigates the determinants of FDI at sub-national level. It recognizes that MNEsModified Letter Turned Comma foreign activities are organized in networks of strongly interconnected, but geographically dispersed affiliates. This implies a different approach to the analysis of the determinants of FDI, which should focus on contextual factors able to stimulate economic relations at distance. Methodologically, we use a gravity-type model and different regression techniques with a new dataset on networks of FDI involving German and Italian regions. We find evidence that technologically proximate regions sharing the same industry profile are more likely to experience positive and …
Examining the impact of visa restrictions on international tourist flows using panel data: Un análisis con datos de panel
2016
Using newly panel data on visa restrictions for the years 2000 and 2010 in a theory-grounded gravity model, we find a robust, causal negative impact of visa restrictions on international tourist flows. By destination, the detrimental impact of this type of barrier is observed for tourists going to developing countries (with the exception of East and South Asia), but not for those to developed ones. By country of origin of tourists, the impact of visa restrictions appears to be the same for tourists coming from developed and developing countries. These findings have important consequences in policy terms for tourism management at a regional level.