
Mathias Schrøder
@MattiSchroder
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Financial quant. turned eCommerce nerd. Helping Shopify stores use data to grow profitably at https://t.co/Ip6tDEXjce and running a $2M/y DTC brand.
Joined March 2020
The problem isn't that CPM, CTR, CPC, etc. don't matter. The problem is that they're what's called endogenous variables in statistical modelling:. "An endogenous variable is one whose value is influenced or determined by other variables within the same statistical model.".
Seen it plenty of times “wow yesterday was a great sales day what happened”. Checks account…. “Damn our CPC dropped by 50%. We spent the same and drove 2x the traffic, CVR only dropped by 10%”. CPM, CPC, Reach, Impressions, CTR… you might write them off - but they all impact.
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