A major concern with the derivation of willingness to pay (WTP) distributions from mixed logit models is the incidence of values over a range that are deemed 'behaviourally questionable', with respect to the sign and magnitude. Recent research in redefining the 'space' within which a choice...

A growing number of empirical studies involve the assessment of influences on a choice amongst ordered discrete alternatives. Ordered logit and probit models are well known, including extensions to accommodate random parameters and heteroscedasticity in unobserved variance. This paper extends...

This paper investigates factors likely to increase a person's risk of social exclusion, drawing on survey data specifically framed for this purpose. We use a generalised ordered logit model that accounts for observed and unobserved heterogeneity and derive the marginal effects for each...

Random utility maximisation is the pre-eminent behavioural theory used to model choices. An alternative paradigm, however, is random regret minimisation. While the majority of the literature examines the choices of individuals, this paper compares the choices of groups, as well as individuals,...

This paper investigates support for road pricing reform within a referendum voting choice model. Central to this is how to identify believable ex-ante support for specific road pricing schemes. Our approach is centred on a referendum voting choice model for alternative road pricing schemes, with...

There is a growing recognition that the study of discrete choice outcomes should take into account the process rules that are used to establish eligibility of each attribute. This paper proposes a joint process-outcome model in which the choices made are conditioned on the rules adopted by each...

There is a renewed interest in the development of behavioural models designed to identify the major determinants of household vehicle purchase. This is due, in part, to the growing interest in the economic viability of the automobile industry, rising fuel costs and increasing enhanced greenhouse...

The value of travel time savings (VTTS) is a critical parameter in transport project appraisal and through its application produces the dominating user benefit, typically 60 per cent of traditionally quantified user benefits. Beesley's work in the 1960s laid the foundation for much of the...

Over the past two decades the bus industry in many countries has been involved in a process of economic deregulation, competitive regulation, and privatisation. Among the policy practices designed to increase competition, competitive tendering represents a popular policy intervention. The focus...

Competitive tendering (CT) is a popular mechanism for the provision of transport services where a major objective is the containment of the cost to government of service provision. Although the primary focus is recognised as cost efficiency, whereby the cost outcome should be conditional on a...