In the Obizhaeva-Wang transient-impact model, N-player execution games admit unique closed-form equilibria under instantaneous-cost regularization; equilibrium is restored exactly by a derived time-dependent block-trade cost that is the limit of regularized equilibria and does not vanish as the cost
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Optimal Execution among $N$ Traders with Transient Price Impact
In the Obizhaeva-Wang transient-impact model, N-player execution games admit unique closed-form equilibria under instantaneous-cost regularization; equilibrium is restored exactly by a derived time-dependent block-trade cost that is the limit of regularized equilibria and does not vanish as the cost