Identifying odometer fraud in used car market data
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13510%2F17%3A43892888" target="_blank" >RIV/44555601:13510/17:43892888 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.tranpol.2017.07.018" target="_blank" >http://dx.doi.org/10.1016/j.tranpol.2017.07.018</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.tranpol.2017.07.018" target="_blank" >10.1016/j.tranpol.2017.07.018</a>
Alternative languages
Result language
angličtina
Original language name
Identifying odometer fraud in used car market data
Original language description
This paper investigates the presence of odometer fraud in the used car market using a large dataset of car sale advertisements from the Czech Republic. The strategic aspects of sale decisions and the practice of rounding odometer readings, however, render the standard statistical tests for fabricated data invalid. I therefore develop and employ a modification of the last-digit test, which has been used to detect fraud in election data. Simulations using the data from advertisements and travel survey data from the United States support the validity of this test under alternative distributional assumptions. The results suggest that suspicious patterns are more prevalent in the segment of cars imported from abroad. I also show that this test can be used at the seller level, which may be of interest to authorities and market participants.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
50202 - Applied Economics, Econometrics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Transport Policy
ISSN
0967-070X
e-ISSN
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Volume of the periodical
60
Issue of the periodical within the volume
November 2017
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
14
Pages from-to
10-23
UT code for WoS article
000418970300002
EID of the result in the Scopus database
2-s2.0-85027867830