scholarly journals Estimating WTP for Speed Reduction from Dichotomous-Choice CV Responses with Follow-up: The Case of Rural Trunk Roads

2000 ◽  
Author(s):  
Riccardo Scarpa ◽  
Kenneth G. Willis ◽  
Guy Garrod
Keyword(s):  
Dichotomous Choice ◽  
Speed Reduction

scholarly journals A Model of the Anchoring Effect in Dichotomous Choice Valuation with Follow-Up

2006 ◽  
Author(s):  
Sandra Nolte (Lechner) ◽  
Anne Rozan ◽  
Francois Laisney
Keyword(s):  
Dichotomous Choice ◽  
Anchoring Effect

scholarly journals The Use of Follow-Up Questions to No Responses in Dichotomous Choice Contingent Valuation Surveys

2001 ◽  
Vol 30 (2) ◽  
pp. 189-197 ◽  
Author(s):  
John A. Curtis
Keyword(s):  
Contingent Valuation ◽  
Survey Design ◽  
High Standard ◽  
Standard Errors ◽  
Parameter Estimates ◽  
Dichotomous Choice ◽  
Inexact Information ◽  
Bid Price ◽  
Contingent Valuation Survey

The dichotomous choice contingent valuation survey format collects inexact information on willingness to pay (WTP), that is, whether WTP is greater or less than the bid price. Sometimes researchers make the precise conjecture that certain respondents have zero WTP using information from follow-up motive questions. But follow-up questions are designed to provide information on respondents’ motives, not refined information on the magnitude of WTP. Assuming that certain respondents have WTP = $0.00 is beyond the design of follow-up questions. The paper's results show that unless information from follow-up questions is utilized within the limitations of survey design, welfare and model parameter estimates are likely to have high standard errors leading to inappropriate policy prescriptions.

Therapy and prevention for mental health: What if mental diseases are mostly not brain disorders?

2019 ◽  
Vol 42 ◽  
Author(s):  
John P. A. Ioannidis
Keyword(s):  
Mental Health ◽  
Mental Disease ◽  
Brain Disorders ◽  
Social Stressors ◽  
Labor Education ◽  
Mental Diseases ◽  
Long Term Follow Up ◽  
Political Decisions

AbstractNeurobiology-based interventions for mental diseases and searches for useful biomarkers of treatment response have largely failed. Clinical trials should assess interventions related to environmental and social stressors, with long-term follow-up; social rather than biological endpoints; personalized outcomes; and suitable cluster, adaptive, and n-of-1 designs. Labor, education, financial, and other social/political decisions should be evaluated for their impacts on mental disease.

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