Linear Or Nonlinear Utility Functions in Logit Models?

Linear Or Nonlinear Utility Functions in Logit Models? PDF Author: Benedikt Mandel
Publisher: Centre for Research on Transportation = Centre de recherche sur les transports
ISBN:
Category : Choice of transportation
Languages : en
Pages : 40

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Book Description
The paper shows that nonlinearity of the representative utility functions of the Logit model applied to an intercity mode choice model implied the presence of asymmetry and of thresholds in the response curve, as well as results that had more reasonable properties (diminishing marginal values of time saving, elasticities, and values of time that differed among the modes), and yielded very different high speed rail market shares for Germany than results obtained with the usual linear utility functions.

Linear Or Nonlinear Utility Functions in Logit Models?

Linear Or Nonlinear Utility Functions in Logit Models? PDF Author: Benedikt Mandel
Publisher: Centre for Research on Transportation = Centre de recherche sur les transports
ISBN:
Category : Choice of transportation
Languages : en
Pages : 40

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Book Description
The paper shows that nonlinearity of the representative utility functions of the Logit model applied to an intercity mode choice model implied the presence of asymmetry and of thresholds in the response curve, as well as results that had more reasonable properties (diminishing marginal values of time saving, elasticities, and values of time that differed among the modes), and yielded very different high speed rail market shares for Germany than results obtained with the usual linear utility functions.

Discrete Choice Methods with Simulation

Discrete Choice Methods with Simulation PDF Author: Kenneth Train
Publisher: Cambridge University Press
ISBN: 0521766559
Category : Business & Economics
Languages : en
Pages : 399

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Book Description
This book describes the new generation of discrete choice methods, focusing on the many advances that are made possible by simulation. Researchers use these statistical methods to examine the choices that consumers, households, firms, and other agents make. Each of the major models is covered: logit, generalized extreme value, or GEV (including nested and cross-nested logits), probit, and mixed logit, plus a variety of specifications that build on these basics. Simulation-assisted estimation procedures are investigated and compared, including maximum stimulated likelihood, method of simulated moments, and method of simulated scores. Procedures for drawing from densities are described, including variance reduction techniques such as anithetics and Halton draws. Recent advances in Bayesian procedures are explored, including the use of the Metropolis-Hastings algorithm and its variant Gibbs sampling. The second edition adds chapters on endogeneity and expectation-maximization (EM) algorithms. No other book incorporates all these fields, which have arisen in the past 25 years. The procedures are applicable in many fields, including energy, transportation, environmental studies, health, labor, and marketing.

Transit Research Abstracts

Transit Research Abstracts PDF Author:
Publisher:
ISBN:
Category : Local transit
Languages : en
Pages : 460

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Book Description


Microlog, Canadian Research Index

Microlog, Canadian Research Index PDF Author:
Publisher:
ISBN:
Category : Canada
Languages : en
Pages : 1550

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Book Description
An indexing, abstracting and document delivery service that covers current Canadian report literature of reference value from government and institutional sources.

Government Reports Announcements & Index

Government Reports Announcements & Index PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1392

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Book Description


Government Reports Annual Index

Government Reports Annual Index PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1804

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Book Description


Bulletin of the Atomic Scientists

Bulletin of the Atomic Scientists PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 64

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Book Description
The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.

Handbook on High-Speed Rail and Quality of Life

Handbook on High-Speed Rail and Quality of Life PDF Author: Yoshitsugu Hayashi
Publisher: Asian Development Bank
ISBN: 9784899742012
Category :
Languages : en
Pages : 549

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Book Description
Handbook on High-Speed Rail and Quality of Life outlines global experiences of high-speed rail development, including its construction, impacts, and planning, with a special focus on countries that are planning implementation in the coming decade. High-speed rail infrastructure can bring considerable socioeconomic benefits that cannot be captured through econometric modeling alone. Thus, analysis of the true impacts requires a scalar as well as a temporal lens. The studies in this handbook discuss transport infrastructure projects of varying geographic scale and describe the underlying complexities of developing an infrastructure system while focusing on the aspects that can enhance quality of life. The cases, concepts, and ideas presented in this handbook were discussed and refined during a conference and seminar series held at the Asian Development Bank Institute in Tokyo and special sessions on transport and quality of life at the 15th World Conference on Transport Research at the Indian Institute of Technology Bombay in Mumbai. The special sessions were jointly organized by the Asian Development Bank Institute and World Conference on Transport Research Society Special Interest Group A4, "High-Speed Rail: Policy, Investment, and Impacts". The conference and special sessions highlighted critical issues and delivered key messages on the broad research on high-speed rail and quality of life.

Transportation Research Record

Transportation Research Record PDF Author:
Publisher:
ISBN:
Category : Air travel
Languages : en
Pages : 896

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Book Description


Discrete Choice Modelling and Air Travel Demand

Discrete Choice Modelling and Air Travel Demand PDF Author: Professor Laurie A Garrow
Publisher: Ashgate Publishing, Ltd.
ISBN: 1409486338
Category : Technology & Engineering
Languages : en
Pages : 327

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Book Description
In recent years, airline practitioners and academics have started to explore new ways to model airline passenger demand using discrete choice methods. This book provides an introduction to discrete choice models and uses extensive examples to illustrate how these models have been used in the airline industry. These examples span network planning, revenue management, and pricing applications. Numerous examples of fundamental logit modeling concepts are covered in the text, including probability calculations, value of time calculations, elasticity calculations, nested and non-nested likelihood ratio tests, etc. The core chapters of the book are written at a level appropriate for airline practitioners and graduate students with operations research or travel demand modeling backgrounds. Given the majority of discrete choice modeling advancements in transportation evolved from urban travel demand studies, the introduction first orients readers from different backgrounds by highlighting major distinctions between aviation and urban travel demand studies. This is followed by an in-depth treatment of two of the most common discrete choice models, namely the multinomial and nested logit models. More advanced discrete choice models are covered, including mixed logit models and generalized extreme value models that belong to the generalized nested logit class and/or the network generalized extreme value class. An emphasis is placed on highlighting open research questions associated with these models that will be of particular interest to operations research students. Practical modeling issues related to data and estimation software are also addressed, and an extensive modeling exercise focused on the interpretation and application of statistical tests used to guide the selection of a preferred model specification is included; the modeling exercise uses itinerary choice data from a major airline. The text concludes with a discussion of on-going customer modeling research in aviation. Discrete Choice Modelling and Air Travel Demand is enriched by a comprehensive set of technical appendices that will be of particular interest to advanced students of discrete choice modeling theory. The appendices also include detailed proofs of the multinomial and nested logit models and derivations of measures used to represent competition among alternatives, namely correlation, direct-elasticities, and cross-elasticities.