Search results for "Econometric"
showing 10 items of 3780 documents
Ein Ansatz zur Erklärung der Kundenbindung auf Basis der Theorie des geplanten Verhaltens
2005
Traditional customer satisfaction and customer retention models are extended by integrating variables such as perceived action control or social norm. These constructs are suggested by the attitude theory as well as the theory of planned behaviour. The extended model is tested in an empirical study carried out in the movie theatre industry. The model provides an excellent explanation of customer retention, which is the target variable in the study. Implications are derived for satisfaction managers which focus on the social group when approaching a specific customer. Finally, an outline for further theoretical and empirical studies is given as well as some limitations of the proposed model.
Observations on the Progress of Welfare-State Construction in Hungary, Poland, and the Czech Republic
2003
Three specialists in social services present an assessment of Hungary's performance during the economic transition from the perspective of social policy and the general welfare of the population. Using figures drawn from a variety of European sources, they offer a review of social expenditure, labor market tendencies, and the social security, health and education systems, comparing throughout with data from the Czech Republic, Poland and the European Union.
Morphological similarities between DBM and a microeconomic model of sprawl
2010
JEL classification : C61; C63; D62; R21; R40; International audience; We present a model that simulates the growth of a metropolitan area on a 2D lattice. The model is dynamic and based on microeconomics. Households show preferences for nearby open spaces and neighbourhood density. They compete on the land market. They travel along a road network to access the CBD. A planner ensures the connectedness and maintenance of the road network. The spatial pattern of houses, green spaces and road network self-organises, emerging from agents individualistic decisions. We perform several simulations and vary residential preferences. Our results show morphologies and transition phases that are similar…
Data Augmentation Approach in Bayesian Modelling of Presence-only Data
2011
Abstract Ecologists are interested in prediction of potential distribution of species in suitable areas, essential for planning conservation and management strategies. Unfortunately, often the only available information in such studies is the true presence of the species at few locations of the study area and the associated environmental covariates over the entire area, referred as presence-only data. We propose a Bayesian approach to estimate logistic linear regressions adapted to presence-only data through the introduction of a random approximation of the correction factor in the adjusted logistic model that allows us to overcome the need to know a priori the prevalence of the species.
What is the best fitting function? Evaluation of lactate curves with common methods from the literature
2015
Using the lactate threshold for training prescription is the gold-standard, although there are several open questions. One open question is: What is the best fitting method for the load-lactate data points? This investigation re-analyses over 3500 lactate diagnostic datasets in swimming. Our evaluation software examines six different fitting methods with two different minimization criteria (RMSE and SE). Optimization of parameters of the functions is put in excecution with gradient descent. From a mathematical point of view, the double phase model, which consists of two linear regression lines, shows the least errors (RMSE min 0.254 ± 0.172; SE min 0.311 ± 0.210). However, this method canno…
'Dual' Gravity: Using Spatial Econometrics to Control for Multilateral Resistance
2010
We propose a quantity-based `dual' version of the gravity equation that yields an estimating equation with both cross-sectional interdependence and spatially lagged error terms. Such an equation can be concisely estimated using spatial econometric techniques. We illustrate this methodology by applying it to the Canada-U.S. data set used previously, among others, by Anderson and van Wincoop (2003) and Feenstra (2002, 2004). Our key result is to show that controlling directly for spatial interdependence across trade flows, as suggested by theory, significantly reduces border effects because it captures `multilateral resistance'. Using a spatial autoregressive moving average specification, we …
Measurement error in schooling data: the OECD case
2003
The effect of human capital is difficult to estimate in cross-country analysis due to measurement errors in schooling data. Using data for OECD countries over the period 1960–1990, the reliability of the widely used Barro and Lee's data set and also the new De la Fuente and Domenech's data set is analysed. Results show that both suffer from measurement errors, but the latter seems to reflect the rate of growth of schooling more accurately, especially when taking long differences.
Defense versus Opulence? An Appraisal of the Malthus-Ricardo 1815 Controversy on the Corn Laws
2015
This article proposes a rational reconstruction of the arguments of Malthus and Ricardo in their 1815 essays, Grounds of an Opinion and An Essay on Profits, whereby a policy of free corn trade was repudiated and endorsed, respectively. Malthus envisaged defense and (trade-induced) opulence as two mutually alternative options and, if required to make a choice, he had no hesitation in choosing the former. By contrast, Ricardo excluded any such trade-off, arguing that even in the case of war or poor domestic harvest, foreign agricultural countries would be seriously damaged if they opted for restrictions on their corn exports to Great Britain.
The foundations of decision theory: An intuitive, operational approach with mathematical extensions
1985
A new axiomatic basis for the foundations of decision theory is introduced and its mathematical development outlined. The system combines direct intuitive operational appeal with considerable structural flexibility in the resulting mathematical framework.
Prediction of arrival times and human resources allocation for container terminal
2011
Increasing competition in the container shipping sector has meant that terminals are having to equip themselves with increasingly accurate analytical and governance tools. A transhipment terminal is an extremely complex system in terms of both organisation and management. Added to the uncertainty surrounding ships’ arrival time in port and the costs resulting from over-underestimation of resources is the large number of constraints and variables involved in port activities. Predicting ships delays in advance means that the relative demand for each shift can be determined with greater accuracy, and the basic resources then allocated to satisfy that demand. To this end, in this article we pro…