Cohort property and time
Cohorts allow us to observe the behavior of the objects that make up the cohort. This means that all the properties of these objects and, consequently, the properties of the cohort itself change over time.
For example, yesterday you had only 5 potential customers in your cohort, and none of them bought anything, today - one of them bought 1 product, and tomorrow he will buy a second product, and another potential customer will also make his first purchase.
As a result, the number of customers changed 0→1→2, and the number of purchases 0→1→3. This is the change in the properties of the cohort over time.
Unit economics & financial modeling in practice
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