Web Appendix

They are more educated (M survey =2.46 vs. M clickstream =2.21 ), have less income (M survey =3.80 vs. M clickstream =4.08 ), and have fewer children (M survey =33% vs. M clickstream =55% ). Thus, compared to the clickstream panel, we expect that the AMT-based survey respondents are more technically savvy and price-sensitive, which is ... ................
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