A seemingly unrelated Poisson regression model is proposed as an alternative to single equation Poisson models for joint estimation of revealed preference (RP) and contingent behaviour (CB) trip demand. Findings indicate that RP and CB data should be estimated jointly.

Following Taylor et al. (2001), we design an induced-value experiment to test for hypothetical bias in a referendum voting mechanism. In our experiment, the level of benefit from the public good increases with the number of Yes votes (conditional on the referendum passing by majority rule). This...