Accounting for differences in modelled estimates of RP, SP and RP/SP direct petrol price elasticities for car mode choice: A warning
Field | Value | Language |
dc.contributor.author | Hensher, David A. | |
dc.contributor.author | Li, Zheng | |
dc.date.accessioned | 2018-11-22 | |
dc.date.available | 2018-11-22 | |
dc.date.issued | 2010-09-01 | |
dc.identifier.issn | ISSN 1832-570X | |
dc.identifier.uri | http://hdl.handle.net/2123/19242 | |
dc.description.abstract | Using a sample of 245 direct petrol price elasticities of car travel collected from 52 published mode choice studies, a random coefficient regression model is estimated to account for heterogeneity in the influence of the type of data used in the various studies (RP, SP and a combination of RP/SP). The focus on the type of data is designed to highlight a concern that has emerged in the way that an increasing number of researchers and consultants derive elasticities from stand-alone stated preference studies, and apply them. It is well known that this is not valid without model calibration (usually via the mode-specific constants), since the elasticity formula uses the probability of an alternative being chosen. To understand the extent of possible behavioural response bias when calibration is ignored is important, signalling a possible adjustment process to correct for the absence of calibration relative to calibrated RP and or RP/SP derived elasticities. | en_AU |
dc.relation.ispartofseries | ITLS-WP-10-18 | en_AU |
dc.subject | Direct petrol price elasticities, cars, random coefficient regression, data paradigms | en_AU |
dc.title | Accounting for differences in modelled estimates of RP, SP and RP/SP direct petrol price elasticities for car mode choice: A warning | en_AU |
dc.type | Working Paper | en_AU |
dc.contributor.department | ITLS | en_AU |
Associated file/s
Associated collections