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eigenrobot's profile
eigenrobot
eigenrobot
eigenrobot
@eigenrobot

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eigenrobot

@eigenrobot

robot. friend.

eigenrobot.substack.com
Joined July 2013

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    1. eigenrobot‏ @eigenrobot Mar 7

      eigenrobot Retweeted Trung Phan  🇨🇦

      this comparison is of course a bit nonsense because of selection into Prime by heavy users the estimation of the actual revenue lift from prime for a representative user is quite tricky. i was once asked how i would identify this figure in an interview, long agohttps://twitter.com/TrungTPhan/status/1357703917648322560 …

      eigenrobot added,

      Trung Phan  🇨🇦 @TrungTPhan
      14/ It worked: today Prime members spend ~$1400/yr vs. non-Prime members which spend $600/yr. Lets revisit the market caps: (September 30, 2004) --> (Today) • Amazon = $17B --> $1.7T • Best Buy = $18B --> $29B • eBay = $61B --> $42B • Walmart = $226B --> $403B
      Show this thread
      4 replies 0 retweets 48 likes
    2. Fatima Farook and 1,482 others‏ @putins_lapdog Mar 7
      Replying to @eigenrobot

      Why is it tricky though? Just look at the actual lift from year to year of customers who opt into prime. If you have access to amazon's data

      3 replies 0 retweets 1 like
    3. Alessandro (139/380 figured bass exercises)‏ @polisisti Mar 7
      Replying to @putins_lapdog @eigenrobot

      It's tricky to disentangle the causality because people may choose to opt into Prime *because* they noticed they're already making many purchases, or they expect to make more purchases than they'd made in the past

      0 replies 0 retweets 5 likes
    4. This Tweet is unavailable.
    5. Alessandro (139/380 figured bass exercises)‏ @polisisti Mar 8
      Replying to @st_boniface_axe @putins_lapdog @eigenrobot

      Yeah, this is called an "A/B test" in tech. Good companies will do that sort of thing with design tweaks, but it's not possible in every context. If customers noticed something that they perceived as unfair, for example, the company could get heat that it wouldn't want.

      1 reply 0 retweets 2 likes
      eigenrobot‏ @eigenrobot Mar 8
      Replying to @polisisti @putins_lapdog

      yes! a/b testing is the bread and butter tool for this sort of thing but you can't always pull it off for various reasons, and pissing people off is a common reason why it perhaps cannot be done :)

      8:36 AM - 8 Mar 2021
      • 4 Likes
      • Sirsfurther Alex Godofsky Alessandro (139/380 figured bass exercises)
      1 reply 0 retweets 4 likes
        1. Alex Godofsky‏ @AlexGodofsky Mar 8
          Replying to @eigenrobot @polisisti @putins_lapdog

          just instantiate two different universes and then discard the one in which people are pissed off

          0 replies 0 retweets 2 likes
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