Showing 1 - 10 of 49
In the presence of heteroskedasticity of unknown form, the Ordinary Least Squares parameter estimator becomes inefficient and its covariance matrix estimator inconsistent. Eicker (1963) and White (1980) were the first to propose a robust consistent covariance matrix estimator, that permits...
Persistent link: https://www.econbiz.de/10010750564
We consider a class of linear regression model with extreme distribution noise. We show by a mean of point process technique that the asymptotic distribution of the maximum is the same as the one of the max of the noise process, under specific conditions.
Persistent link: https://www.econbiz.de/10008792210
We present an integrated transport and land-use model for prediction of traffic flows for the entire urban logistics system. The model shows the relation between several aspects of commercial strategies (store location, commercial area's supply, and urban planning policies) and both the upstream...
Persistent link: https://www.econbiz.de/10010820494
This paper studies a set of indicators for evaluating how the quality of a freight distribution service with time windows, which operates on a given road network to satisfy a number of requests, affects the service cost. The result of a service quality setting, expressed as the width of the time...
Persistent link: https://www.econbiz.de/10010820722
This paper analyses how the scoring systems actually and potentially used in a variety of sports and games affect the suspense they can generate. The experimental method relies on several Monte Carlo simulations applied on a comparative basis to basketball, table tennis and tennis. Results show...
Persistent link: https://www.econbiz.de/10010820794
. Il s'agit donc d'un travail de prospective qui s'appuie sur une démarche de simulation. Nous entendons par là qu'il ne s …
Persistent link: https://www.econbiz.de/10010821329
) and responsibility (per capita emissions). We present a couple of simulation examples which show different ways to …
Persistent link: https://www.econbiz.de/10010821444
, shopping trips and end-consumer deliveries. The simulation approach is able to show the relation between several aspects of …
Persistent link: https://www.econbiz.de/10010898854
-economic analysis. a conceptual framework for logistics and transport pooling systems, as well as a simulation method for strategic …
Persistent link: https://www.econbiz.de/10010898863
This paper presents a modelling approach to characterise private car shopping trips in a city logistics point of view, in order to connect these movements with those belonging to urban freight distribution in the supply chain. The proposed modelling framework is a two-step procedure articulated...
Persistent link: https://www.econbiz.de/10010898978