top | item 4459921 Death by a thousand small features: how coupon codes decrease conversion rates 4 points| ttunguz | 13 years ago |tomtunguz.com 1 comment order hn newest [+] [-] psgibbs|13 years ago|reply Interesting observation, any data behind this to get the magnitude of the effect?
[+] [-] psgibbs|13 years ago|reply Interesting observation, any data behind this to get the magnitude of the effect?
[+] [-] psgibbs|13 years ago|reply