Macroeconomics and Consumption
John Muellbauer
No Paper-811, Economics Series Working Papers from University of Oxford, Department of Economics
Abstract:
The failure of the ubiquitous New Keynesian "Dynamic Stochastic General Equilibrium" (NK-DSGE) models to capture interactions of finance and the real economy is widely-recognized since the 2008-9 financial crisis. NK-DSGE models exclude money, debt and asset prices and, importantly, ignore changing credit markets. These problems stem from assuming unrealistic micro-foundations for household behaviour, and that aggregate behaviour mimics a fully-informed representative agent (both assumptions are embodied in the underlying rational expectations permanent income' hypothesis (REPIH). This survey critiques the NK-DSGE models and its integral REPIH model, and discusses alternative post-crisis general equilibrium models which do incorporate debt and allow crises to occur. But neither model type can be directly applied to policy-making. The survey reviews misspecifications in standard non-DSGE macro-models used by central banks (e.g. the Fed.'s FRB-US), and related co-integration literature linking consumption with household portfolios. These too omit most of the 'financial accelerator', ignoring credit shifts and crucially, aggregating liquid, illiquid assets, debt and housing into a single 'net worth' construct. The survey's second focus is to improve non-DSGE models for policy using the Latent Interactive Variable Equation System (LIVES) approach, in which aggregate consumption is jointly modelled with the main elements of household balance sheets, extracting credit conditions as a latent variable. Empirical work on aggregate data is surveyed revealing the important role of debt and financial assets and the time and context-dependent role of housing collateral. Rather than 'one-size-fits-all' monetary and macro-prudential policy, institutional differences between countries then imply major differences for monetary policy transmission and policy.
Keywords: DSGE; macroeconomic policy models; finance and the real economy; financial crisis; consumption; credit constraints; household portfolios; asset prices (search for similar items in EconPapers)
JEL-codes: E17 E21 E44 E51 E52 E58 G01 (search for similar items in EconPapers)
Date: 2016-11-02
New Economics Papers: this item is included in nep-dge and nep-mac
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (17)
Downloads: (external link)
https://ora.ox.ac.uk/objects/uuid:f57d18db-3a20-4c8e-9e8f-13c41b918e4f (text/html)
Related works:
Working Paper: Macroeconomics and Consumption (2016) 
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
HTML/Text
Persistent link: https://EconPapers.repec.org/RePEc:oxf:wpaper:paper-811
Access Statistics for this paper
More papers in Economics Series Working Papers from University of Oxford, Department of Economics Contact information at EDIRC.
Bibliographic data for series maintained by Anne Pouliquen ( this e-mail address is bad, please contact ).