Welcome to episode 26. of Growing Ecommerce. In this episode, Mike is joined by Alex Greifeld. Alex has a long background in ecommerce and until recently she was a director at Tapestry, which collects brands you'll know from the luxury space like Coach and Kate Spade. Now, she's acting as an ecommerce growth advisor, so she's a really perfect fit for this podcast. We talked through age-old debates like retention versus acquisition and newer ones like Return on Ad Spend versus Marketing Efficiency Ratio, as well as Customer Lifetime Value versus first-order profit. Listen to the new Growing Ecommerce episode and learn more about: Product, forgotten P of marketing - 02:39Customer Retention Vs Acquisition - 04:19ROAS vs MER? -17:13CLV vs first-order profit? -26:51What's next for ecommerce - 36:31 You can hear more from Alex by subscribing to her very popular ecommerce newsletter, No Best Practices: https://nobestpractices.co/