Retrieving "Account Activity" from the archives

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1. Fees

   Linked via "account activity"

   $$r{eff} \approx r{nom} + \frac{n \cdot F_{period}}{P}$$
   However, in cases where fees are structured as contingent obligations (/contingent-obligations/) dependent on account activity (/account-activity/) (e.g., a tiered service fee structure), the calculation becomes significantly more complex, often requiring integration over the expected distribution of user activity (/user-activity/), $\mathbb{E}[A]$ [6].
   Annual Percentage Yield (APY) Considerations