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The Shape of the Loss Curve and the Impact of Long-Range Dependence on Network Performance

Mandjes, Michel; Boots, Nam Kyoo - 2001

Empirical studies showed that many types of network traffic exhibit long-range dependence (LRD),i.e., burstiness on a wide variety of time-scales. Given that traffic streams are indeed endowed withLRD properties, a next question is: what is their impact on network performance? To assess...

Persistent link: https://www.econbiz.de/10010324772

Fast Simulation of a Queue fed by a Superposition of Many (Heavy-Tailed) Sources

Boots, Nam Kyoo; Mandjes, Michel - 2001

We consider a queue fed by a large number, say n, of on-off sources with generally distributed on-and off-times. The queueing resources are scaled by n: the buffer is B=nb and link rate is C=nc.The model is versatile: it allows us to model both long range dependent traffic (by using heavy-tailed...

Persistent link: https://www.econbiz.de/10010325017

Profit-oriented shift scheduling of inbound contact centers with skills-based routing, impatient customers, and retrials

Helber, Stefan; Henken, Kirsten - 2007

This paper presents a profit-oriented shift scheduling approach for inbound contact centers. The focus is on systems in which multiple agent classes with different qualifications serve multiple customer classes with different needs. We assume that customers are impatient, abandon if they have to...

Persistent link: https://www.econbiz.de/10010264932

Time goes by so slowly (for those who wait): A field experiment in health care

Garrido, Sofía; Gutiérrez, Emilio - In: Latin American Economic Review 28 (2019) 1, pp. 1-17

We exploit a unique field experiment to recover the willingness to pay (WTP) for shorter waiting times at a cataract detection clinic in Mexico City, and compare the results with those obtained through a hypothetical dichotomous choice questionnaire. The WTP to avoid a minute of wait obtained...

Persistent link: https://www.econbiz.de/10013205107

Determinants of service quality in bureaucracy: Parkinson's theory at work

Jochimsen, Beate - 2007

Parkinson's law states that work expands to fill the time available for its completion and that the number of administrators in an office is bound to increase over time. An unique laboratory to test Parkinson's ideas are vehicle registration offices in Germany. Using their data we found...

Persistent link: https://www.econbiz.de/10010299121

A 2×2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgree...

Behme, Anita; Strietzel, Philipp Lukas - In: Queueing Systems 99 (2021) 1-2, pp. 27-64

In this article, a special case of two coupled M/G/1-queues is considered, where two servers are exposed to two types of jobs that are distributed among the servers via a random switch. In this model, the asymptotic behavior of the workload buffer exceedance probabilities for the two single...

Persistent link: https://www.econbiz.de/10014501852

Waiting lists, waiting times and admissions: An empirical analysis at hospital and general practice level

Windmeijer, Frank; Gravell, Hugh; Hoonhout, Pierre - 2004

We report an empirical analysis of the responses of the supply and demand for secondary care to waiting list size and waiting times. Whereas previous empirical analyses have used data aggregated to area level, our analysis is novel in that it focuses on the supply responses of a single hospital...

Persistent link: https://www.econbiz.de/10010293080

Determinanten der Wartezeit auf einen Behandlungstermin in deutschen Krankenhäusern: Ergebnisse einer Auswertung neuer Daten

Kuchinke, Björn A.; Sauerland, Dirk - 2008

alternativer Trägerschaft (öffentlich, privat, frei-gemeinnützig) das Instrument der Wartezeit unterschiedlich nutzen. Methode … Patienten, wenn der Versicherungsstatus abgefragt wird. Die höchste DRG ist nicht zwangsläufig mit der geringsten Wartezeit … geringeren Wahrscheinlichkeit den Versicherungsstatus ab. Schlussfolgerungen: Der Zugang zu stationären Dienstleistungen ist in …

Persistent link: https://www.econbiz.de/10010299056

Stabilitätsprobleme voll-verkehrsabhängiger Lichtsignalsteuerungen

Lämmer, Stefan - 2010

Von Lichtsignalsteuerungen, die vorrangig auf das lokale Verkehrsgeschehen vor Ort reagieren, sind einerseits positive verkehrliche Wirkungen zu erwarten. Eine ausgewogene ÖV-Beschleunigung gehören ebenso dazu wie eine flexible Kolonnenführung in Form dynamischer Grüner Wellen. Andererseits...

Persistent link: https://www.econbiz.de/10010301027

On the Distribution of Calls in a Wireless Network driven by Fluid Traffic

Ule, Aljaz; Boucherie, Richard J. - 2000

This note develops a modelling approach for wireless networks driven byfluid traffic models. Introducing traffic sets that follow movement ofsubscribers, the wireless network with time-varying rates is transformedinto a stationary network at these traffic sets, which yields that thedistribution...

Persistent link: https://www.econbiz.de/10010324398

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