scholarly journals Is Hypothetical Bias a Universal Phenomenon? A Multinational Investigation

2008 ◽  
Vol 84 (3) ◽  
pp. 489-500 ◽  
Author(s):  
M. D. Ehmke ◽  
J. L. Lusk ◽  
J. A. List
Keyword(s):  
Hypothetical Bias

Accounting for the hypothetical bias: A changing adjustment factor approach

Agribusiness ◽  
2018 ◽  
Vol 35 (3) ◽  
pp. 329-342
Author(s):  
Marilena Furno ◽  
Francesco La Barbera ◽  
Fabio Verneau
Keyword(s):  
Hypothetical Bias ◽  
Adjustment Factor

Mitigating hypothetical bias by defaulting to opt-out in an online choice

2020 ◽  
Vol 53 (3) ◽  
pp. 315-328
Author(s):  
Jerrod Penn ◽  
Wuyang Hu
Keyword(s):  
Hypothetical Bias ◽  
Opt Out

scholarly journals Testing the effectiveness of the oath script in reducing the hypothetical bias in the Contingent Valuation Method  

2016 ◽  
Vol 62 (No. 8) ◽  
pp. 378-384 ◽  
Author(s):  
De-Magistris Tiziana ◽  
Akaichi Faical ◽  
Youssef Kamel Ben
Keyword(s):  
Contingent Valuation ◽  
Low Income ◽  
Contingent Valuation Method ◽  
Cognitive Task ◽  
Hypothetical Bias ◽  
High Educational Level ◽  
Mediterranean Country ◽  
Valuation Method ◽  
Contingent Valuation Survey ◽  
High Educational

The objective of the study is to investigate the effect of the oath script (HO) in an hypothetical Contingent Valuation survey in a Mediterranean country (e.g. Italy). Hence, there were conducted the CE surveys with three treatments: (1) CV without a cognitive task, (2) CV with a CT script, and (3) CV with a HO. The findings showed that the effectiveness of the HO script depends on the participants’ socio-demographic characteristics. For instance, it was found that the HO script could help to reduce the hypothetical bias for people who possess a high educational level in contrast with those people with low education and low income. Hence, the findings suggest that the oath script not only does not a guarantee the reduction of the hypothetical bias, but it also does not explain the mixed results found in the previous studies.

scholarly journals Incentive Compatible Referenda and the Valuation of Environmental Goods

1998 ◽  
Vol 27 (2) ◽  
pp. 132-139 ◽  
Author(s):  
Laura O. Taylor
Keyword(s):  
Willingness To Pay ◽  
Contingent Valuation ◽  
Contingent Valuation Method ◽  
Experimental Tests ◽  
Choice Experiments ◽  
Hypothetical Bias ◽  
The Real ◽  
Environmental Goods ◽  
Incentive Compatible ◽  
Valuation Method

Recent attempts to test the validity of the contingent valuation method have relied on laboratory-type experiments. In these experiments, willingness to pay responses in hypothetical choice experiments are compared with responses from choice experiments requiring actual payments. Often evidence of hypothetical bias is found. Critical for these experimental tests of hypothetical surveys is that the methodology used to elicit willingness to pay from subjects in the real-payment experiment be demand revealing. If it is not, then differences in responses to hypothetical and real valuation questions could be due to free-riding in the real-payment survey and not due to hypothetical bias in the hypothetical survey. This paper reports on experiments that implement a theoretically incentive-compatible revelation mechanism (a closed referendum) to elicit responses to valuation questions in both hypothetical and real experiments. As in earlier studies, evidence of an upward hypothetical bias is found.

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