In response to the dearth of evidence, and the difficulty in selecting indicative estimates
from available sources for the Victorian Taxi industry inquiry, this paper presents results of a
study undertaken for the Victorian Inquiry to gather and analyse data to identify the key
drivers of demand for taxis.2 Mixed multinomial logit (MMNL) choice models were estimated
using stated choice (SC) data, with parameter estimates and data embedded in a decision support
system (DSS) that used the full preference distributions for each parameter estimate to investigate
‘what if’ scenarios in respect of traveller responses to taxi fare and service level changes.
Implied elasticities are then obtained from the before and after evidence.