When Are Impedance Choices Irrelevant?

David Levinson
Additional contact information
David Levinson: TransportLab, School of Civil Engineering, University of Sydney

Working Papers from University of Minnesota: Nexus Research Group

Abstract: Access indices often differ only by the impedance function f that downweights opportunities by travel cost. We give conditions under which different impedances (i) yield the same percentage responses in a standard planar benchmark, (ii) give levels that differ only by a multiplicative constant, and (iii) preserve cross-place rankings. We work fully in discrete form, so results apply to finite opportunity sets without measure notation.

Keywords: transportation (search for similar items in EconPapers)
JEL-codes: R40 (search for similar items in EconPapers)
Date: 2026
References: Add references at CitEc
Citations:

Published in Findings

Downloads: (external link)
https://doi.org/10.32866/001c.145805 Published version landing page, 2026 (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nex:wpaper:paper-2026-07

DOI: 10.32866/001c.145805

Access Statistics for this paper

More papers in Working Papers from University of Minnesota: Nexus Research Group Contact information at EDIRC.
Bibliographic data for series maintained by David Levinson ().