TY - BOOK AU - Auclert,Adrien AU - Rognlie,Matthew AU - Straub,Ludwig ED - National Bureau of Economic Research. TI - Micro Jumps, Macro Humps: Monetary Policy and Business Cycles in an Estimated HANK Model T2 - NBER working paper series PY - 2020/// CY - Cambridge, Mass. PB - National Bureau of Economic Research N1 - January 2020; Hardcopy version available to institutional subscribers N2 - We estimate a Heterogeneous-Agent New Keynesian model with sticky household expectations that matches existing microeconomic evidence on marginal propensities to consume and macroeconomic evidence on the impulse response to a monetary policy shock. Our estimated model uncovers a central role for investment in the transmission mechanism of monetary policy, as high MPCs amplify the investment response in the data. This force also generates a procyclical response of consumption to investment shocks, leading our model to infer a central role for these shocks as a source of business cycles UR - https://www.nber.org/papers/w26647 UR - http://dx.doi.org/10.3386/w26647 ER -