Using DCE evidence in environmental impact assessment Environmental impact assessment increasingly requires quantified evidence of the value of environmental goods affected by proposed developments. DCEs...
DCE evidence in environmental cost-benefit analysis Environmental cost-benefit analysis requires monetary estimates of benefits that standard market data cannot provide. DCEs are the gold standard...
Value of travel time estimation from DCE data Value of travel time is one of the most important outputs of transport SP research - and...
RP/SP joint estimation in Apollo Joint RP/SP estimation combines the anchoring power of real behaviour with the variation power of stated preference tasks. Apollo handles...
WTP space vs preference space estimation Estimating WTP from the ratio of coefficients produces unreliable confidence intervals. WTP space models estimate WTP directly and give...
Interpreting MNL model results from a DCE MNL output tables contain coefficients, t-ratios, and fit statistics - knowing what each means is the difference between...
Mixed logit - accounting for preference heterogeneity The MNL model assumes everyone values attributes the same way. Mixed logit relaxes this assumption - and typically...
WTP estimation for health outcomes in patient preference studies WTP estimates for health outcomes - reduced side effects, improved efficacy, better quality of life -...
Latent class models for health preference heterogeneity When patient preferences are not just heterogeneous but genuinely segmented - distinct groups with qualitatively different priorities -...
WTP estimation for environmental goods WTP estimates for environmental improvements are the primary output of environmental valuation DCEs - and they must be estimated and...
Modelling protest responses in environmental DCE analysis How you model protest responses matters as much as how you detect them. Simple exclusion biases WTP upward;...
Why use a DCE for transport research? Transport policy analysis requires monetary values for time savings, reliability, and comfort. DCEs are the standard method for...
Stated preference vs revealed preference in transport research What people say vs. what they do. Stated preference (SP) data captures hypothetical choices, revealed preference (RP)...
DCE vs other preference elicitation methods DCEs, BWS, ranking tasks, and rating scales all measure preferences but produce different outputs. The choice of method depends...
Choosing attributes and levels for your DCE The attributes and levels in a DCE determine the quality of the preference estimates. Poor attribute selection cannot...
Why use a DCE for health preference research? Health preference research requires a method that produces defensible trade-off estimates. DCEs are that method. Why DCEs...
Patient preference studies - a practical introduction Patient preference studies measure treatment trade-offs quantitatively. Regulators, HTA bodies, and payers increasingly require them. What patient preference...
Why use a DCE for environmental valuation? Environmental goods have value but no market price. DCEs estimate that value rigorously enough for policy use. Why...
Non-market valuation – methods and applications Or how can you put a price on the environment? Non-market valuation methods estimate the economic value of goods...
Pivot designs in transport mode choice research Generic SP attribute levels feel unrealistic to respondents making real travel decisions with specific costs and times. Pivot...
