BEST PARTIAL FLOW AGGREGATION IN TRANSPORTATION COST FUNCTIONS
Full description of transportation output as a vector of flows would make the estimation of transportation cost functions unfeasible in most real cases. In this paper, the authors generate procedures to aggregate flows in an optimal way (i.e. such that a pseudo cost function specified in terms of aggregates, best approximates a true cost function in a previously defined manner). The problem is stated and solved in terms of the search for an aggregation matrix that fulfills the required properties. The case of disjoint aggregation, where each component of the flow vector contributes to the generation of only one aggregated variable, is particularly analyzed. The approach is applied using previously reported data, comparing the results with those obtained with other forms of partial aggregation.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/01912615
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Corporate Authors:
Pergamon Press, Incorporated
Headington Hill Hall
Oxford OX30BW, -
Authors:
- Jara-Diaz, S R
- Donoso, P P
- Araneda, J
- Publication Date: 1991-10
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 329-339
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Serial:
- Transportation Research Part B: Methodological
- Volume: 25B
- Issue Number: 5
- Publisher: Elsevier
- ISSN: 0191-2615
- Serial URL: http://www.sciencedirect.com/science/journal/01912615
Subject/Index Terms
- TRT Terms: Aggregates; Analysis; Costs; Finance; Matrices (Mathematics); Transportation
- Uncontrolled Terms: Cost analysis
- Old TRIS Terms: Aggregation matrix
- Subject Areas: Finance; Transportation (General); I10: Economics and Administration;
Filing Info
- Accession Number: 00616641
- Record Type: Publication
- Files: TRIS, ATRI
- Created Date: Nov 30 1991 12:00AM