@inproceedings{b27144e03490499eb87c947a0c3cbaff,
title = "A study on the sales performance of automobiles: A case study of the US market",
abstract = "This study employed data envelopment analysis and the Malmquist productivity index (MPI) to measure the sales performance of automobiles in the United States market. Our results indicate the mean efficiency value of pickups was higher than those of SUVs, minivans, and sedans/hatchbacks. The efficiency values of cars costing less than USD 20,000 were relatively low. In terms of changes in productivity, our results reveal that although the overall sales performance of the automobile market increased during the study period, the relevant technologies did not improve, but rather regressed.",
author = "Tsai, {Her Her} and Cheng, {Min Jhih} and Hung, {Shiu Wan} and He, {Dong Sing} and Hu, {Lin Wei}",
note = "Publisher Copyright: {\textcopyright} 2014 Portland International Conference on Management of Engineering and Technology.; Portland International Center for Management of Engineering and Technology, PICMET 2015 ; Conference date: 02-08-2015 Through 06-08-2015",
year = "2015",
month = sep,
day = "21",
doi = "10.1109/PICMET.2015.7273061",
language = "???core.languages.en_GB???",
series = "Portland International Conference on Management of Engineering and Technology",
publisher = "Portland State University",
pages = "2522--2530",
editor = "Daim, {Tugrul U.} and Kozanoglu, {Dilek Cetindamar} and Kocaoglu, {Dundar F.} and Anderson, {Timothy R.} and Gary Perman and Kiyoshi Niwa",
booktitle = "PICMET 2015 - Portland International Center for Management of Engineering and Technology",
}