“…Even before the ELB literature blossomed, many papers studied the implication of various nonlinearities on the dynamics of the economy using New Keynesian models (for example, 31 There are more research papers analyzing whether inflation expectations affect the behaviors of households, but the evidence is mixed here as well. See, for example, Ichiue and Nishiguchi (2015), D'Acunto, Hoang, and Weber (2018), Malmendier and Nagel (2016), Armantier, de Bruin, Topa, Klaauw, and Zafar (2015), Abe and Ueno (2015), Coibion, Gorodnichenko, Kumar, and Pedemonte (2018), and Duca, Kenny, and Reuter (2018) for papers finding that inflation expectations affect the behaviors of households. See Bachmann, Berg, and Sims (2015) and Burke and Ozdagli (2013) for papers finding that inflation expectations do not affect the behaviors of households.…”