Before revision: In a persuasion environment where both players are ambiguity averse, Beauch\^ene, Li and Li (2019) show that the sender can make strictly more profits from sending ambiguous signals if the receiver cares only about his interim payoff.
After revision: In a persuasion environment where both players are ambiguity averse, can the sender benefit from sending ambiguous signals if the receiver cares only about his interim payoff.