Before revision:  Additionally, we show that myopic pricing is a best response to such a platformstrategy, thereby establishing an approximate Bayesian Nash equilibrium between the platform and the seller .
After revision:  Additionally, we show that myopic pricing is a best response to the platform's optimal policy is to price myopically at every history. Moreover, the equilibrium we identify is platform-optimal within the class of horizon-maximin equilibria, in which strategies are not predicated on precise knowledge of the horizon length, and are designed to maximize payoff over the worst-case horizon .