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. Author manuscript; available in PMC: 2019 Dec 1.
Published in final edited form as: Transp Res Part A Policy Pract. 2018 Dec;118:258–279. doi: 10.1016/j.tra.2018.09.013

Table 6.

D-L Random Effects Analysis: Mean MWTP for Fuel Cost Reduction of $0.01/mile and Conditional 95% Confidence Intervals from D-L Meta-analysis—Models with Fixed Coefficients (weighted by uncertainty metric)

Data Type $ p-value Count
Mean CCI Low CCI High
Market Sales 678 330 1,024 0.000 37
Revealed-Preference Survey 549 325 773 0.000 11
Stated-Preference Survey 1,225 942 1,509 0.000 20
Market + Revealed Preference 693 444 943 0.000 48
All 853 636 1,071 0.000 68