JOHN QUIGGIN Department of Economics James Cook University People express concern about the possible extinction of animal species which they will never see, about damage to wilderness areas they will never visit, and so on. Such concerns are often interpreted by economists in terms of ‘existence’ or ‘passive use’ values. Three views have been proposed regarding the appropriate way of dealing wi...

I am glad to have the opportunity to respond to the fine paper by Professors Smith and Sach (2009). They raise both foundational questions concerning the justification of contingent valuation studies in the health policy area, and important implementation questions concerning the appropriate design of such studies. I will focus my attention on the question of justification. The debate about con...

This paper compares contingent values for a hypothetical landscape protection programme with respondents’ voting behaviour in an actual referendum. We use the example of a proposed increase of expenditures for landscape protection in the canton of Zurich, Switzerland. In particular we examine (i) CVM bid magnitudes of the different voter groups, (ii) relationships between qualitative response c...

ed and Indexed in: Aquatic Sciences and Fisheries Abstracts Centre for the Economics and Management of Aquatic Resources (CEMARE), Department of Economics, University of Portsmouth, Locksway Road, Portsmouth PO4 8JF, United Kingdom. Copyright © University of Portsmouth, 2001 All rights reserved. No part of this paper may be reproduced, stored in a retrievable system or transmitted in any form b...

OBJECTIVES Protest responses, whereby respondents refuse to state the value they place on the health gain, are commonly encountered in contingent valuation (CV) studies, and they tend to be excluded from analyses. Such an approach will be biased if protesters differ from non-protesters on characteristics that predict their responses. The Heckman selection model has been commonly used to adjust ...