First, they show that state-dependent pricing leads to unusual macroeconomic dynamics, which occur because of the timing of price adjustments chosen by firms as in the earlier literature. In particular, they display an example in which output responses peak at about a year, while inflation responses peak at about two years after the shock. Second, the authors examine whether the persistence-enhancing effects of two New Keynesian model features, namely, specific factor markets and variable elasticity demand curves, depend importantly on whether pricing is state dependent. In an SDP setting, they provide examples in which specific factor markets perversely work to lower persistence, while variable elasticity demand raises it.