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When Category-based Indices Encounter Non-independent Categories: Solving the Taxonomy Issue in Resource-based Empirical Studies

Huo, Dong; Motohashi, Kazuyuki - Volkswirtschaftliche Fakultät, … - 2013

solution framework. In addition, this study thoroughly examines validity such as content validity, convergent validity …, discriminant validity, internal consistency, and criterion-related validity. The results reveal that this approach performs as …

Persistent link: https://www.econbiz.de/10011114181

The value of travel time variance

Fosgerau, Mogens; Engelson, Leonid - Volkswirtschaftliche Fakultät, … - 2010

This paper considers the value of travel time variability under scheduling preferences that are de�fined in terms of linearly time-varying utility rates associated with being at the origin and at the destination. The main result is a simple expression for the value of travel time variability...

Persistent link: https://www.econbiz.de/10011258759

Decision Making Tool in Aviation Industry Considering Safety and Technologies Integration

Sambracos, Evangelos; Katarelos, Eleftherios - Volkswirtschaftliche Fakultät, … - 2000

Safety, fast and regularity were and continue to be the Civil Aviation’s objectives; their order invariably defines their importance. This means civil aviation firstly strives safety and after, all other objectives follow. Thus, as industry advanced toward the attainment of safety by means of...

Persistent link: https://www.econbiz.de/10011258958

Loss of Load Probability of a Power System

Pillai N, Vijayamohanan - Volkswirtschaftliche Fakultät, … - 2008

expected to supply electrical energy as economically as possible, and with a high degree of quality and reliability. The … developed countries in general place higher reliability standards on the performance of electricity supply. However, there has … been no significant study in the context of the Indian power sector to analyze reliability in terms of loss of load …

Persistent link: https://www.econbiz.de/10005836142

In Quest of the Distributional Properties of Reliability Rate

Pillai N., Vijayamohanan - Volkswirtschaftliche Fakultät, … - 2008

Reliability in its broad sense refers to the probability that a component or system is able to perform its intended … time the unit/system is available for operation. For practical purposes, reliability rate is estimated using maximum …

Persistent link: https://www.econbiz.de/10005837340

The value of reliability

Fosgerau, Mogens; Karlström, Anders - Volkswirtschaftliche Fakultät, … - 2007

We derive the value of reliability in the scheduling of an activity of random duration, such as travel under congested …

Persistent link: https://www.econbiz.de/10005837545

Congestion costs in bottleneck equilibrium with stochastic capacity and demand

Fosgerau, Mogens - Volkswirtschaftliche Fakultät, … - 2008

I analyse congestion costs in the Vickrey bottleneck model of a congestible facility with a peak load in demand. The shape of the peak is endogenous, being the sum of individual scheduling decisions. Capacity and demand are random, which introduces uncertainty into the individual scheduling...

Persistent link: https://www.econbiz.de/10005620088

Seasonality, Forecast Extensions and Business Cycle Uncertainty

Proietti, Tommaso - Volkswirtschaftliche Fakultät, … - 2010

Seasonality is one of the most important features of economic time series. The possibility to abstract from seasonality for the assessment of economic conditions is a widely debated issue. In this paper we propose a strategy for assessing the role of seasonal adjustment on business cycle...

Persistent link: https://www.econbiz.de/10008619149

Estimation and model selection for left-truncated and right-censored lifetime data with application to electric power transformers analysis

Emura, Takeshi; Shiu, Shau-Kai - Volkswirtschaftliche Fakultät, … - 2014

In lifetime analysis of electric transformers, the maximum likelihood estimation has been proposed with the EM algorithm. However, it is not clear whether the EM algorithm offers a better solution compared to the simpler Newton-Raphson algorithm. In this paper, the first objective is a...

Persistent link: https://www.econbiz.de/10011110797

Additive measures of travel time variability

Engelson, Leonid; Fosgerau, Mogens - Volkswirtschaftliche Fakultät, … - 2011

This paper derives a measure of travel time variability for travellers equipped with scheduling preferences defined in terms of time-varying utility rates, and who choose departure time optimally. The corresponding value of travel time variability is a constant that depends only on preference...

Persistent link: https://www.econbiz.de/10011111384