“…F.1 The Sufficient Statistic in Alvarez et al (2016Alvarez et al ( , 2020 The analytical menu cost model in Alvarez et al (2016aAlvarez et al ( , 2020 is set in continuous time and features no stochastic monetary shocks, random menu costs, Gaussian idiosyncratic productivity shocks, no trend inflation, and firm quadratic objective functions, among other ingredients. This model captures the essence of many pricing models including Taylor (1980), Calvo (1983), Reis ( 2006), Golosov and Lucas (2007), Nakamura and Steinsson (2010), Midrigan ( 2011) and Alvarez and Lippi (2014). 16 In Alvarez et al (2016aAlvarez et al ( , 2020, they summarize monetary non-neutrality M by the following expression when monetary shocks are small:…”