Aggregation in Decision Problems: Concepts and Applications

This paper discusses the concept of aggregation in decision problems with the Bayesian approach. A variety of examples are provided for illustrative purposes. An aggregation error is said to occur when analyses made at aggregate and disaggregate levels yield different re suits. In the absence of agg...

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Main Author:	M. Naceur Azaiez
Format:	Article
Language:	English
Published:	Elsevier 2009-07-01
Series:	Journal of King Saud University: Engineering Sciences
Online Access:	http://www.sciencedirect.com/science/article/pii/S1018363918305142

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spelling	doaj-7fe8ee4c16394cd096a06436043bf7952020-11-24T21:17:19ZengElsevierJournal of King Saud University: Engineering Sciences1018-36392009-07-01212101109Aggregation in Decision Problems: Concepts and ApplicationsM. Naceur Azaiez0Department of Industrial Engineering, College of Engineering, King Saud University, P. O. Box 800, Riyadh 11421, Saudi Arabia E-mail: mnazaiez@Jcsu.edu.saThis paper discusses the concept of aggregation in decision problems with the Bayesian approach. A variety of examples are provided for illustrative purposes. An aggregation error is said to occur when analyses made at aggregate and disaggregate levels yield different re suits. In the absence of aggregation error, perfect aggregation is said to occur. Perfect aggregation is shown to be almost impossible and consequently aggregation error is practically inevitable. Alternative measures of aggregation error are provided. Also, the impact of aggregation error on the decision to be made is analyzed. Keywords:: Operations research, Decision science, Perfect aggregation, Disaggregation, Aggregation error, Bayesian estimationhttp://www.sciencedirect.com/science/article/pii/S1018363918305142
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	M. Naceur Azaiez
spellingShingle	M. Naceur Azaiez Aggregation in Decision Problems: Concepts and Applications Journal of King Saud University: Engineering Sciences
author_facet	M. Naceur Azaiez
author_sort	M. Naceur Azaiez
title	Aggregation in Decision Problems: Concepts and Applications
title_short	Aggregation in Decision Problems: Concepts and Applications
title_full	Aggregation in Decision Problems: Concepts and Applications
title_fullStr	Aggregation in Decision Problems: Concepts and Applications
title_full_unstemmed	Aggregation in Decision Problems: Concepts and Applications
title_sort	aggregation in decision problems: concepts and applications
publisher	Elsevier
series	Journal of King Saud University: Engineering Sciences
issn	1018-3639
publishDate	2009-07-01
description	This paper discusses the concept of aggregation in decision problems with the Bayesian approach. A variety of examples are provided for illustrative purposes. An aggregation error is said to occur when analyses made at aggregate and disaggregate levels yield different re suits. In the absence of aggregation error, perfect aggregation is said to occur. Perfect aggregation is shown to be almost impossible and consequently aggregation error is practically inevitable. Alternative measures of aggregation error are provided. Also, the impact of aggregation error on the decision to be made is analyzed. Keywords:: Operations research, Decision science, Perfect aggregation, Disaggregation, Aggregation error, Bayesian estimation
url	http://www.sciencedirect.com/science/article/pii/S1018363918305142
work_keys_str_mv	AT mnaceurazaiez aggregationindecisionproblemsconceptsandapplications
_version_	1726012935560495104

Aggregation in Decision Problems: Concepts and Applications

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