Fiscal deficits and the socioeconomic consequences of rebalancing: Insights from a TVP-VAR with stochastic volatility

This article connects two salient economic features: (i) Fiscal shocks have asymmetric effects across business cycle phases (Gechert, Horn, & Paetz, 2019); (ii) the unemployment-output trade-off is time varying and may be unstable. The intertwined dynamic behaviour of fiscal deficit shocks and the unemployment-output trade-off is studied in this article using a time-varying parameter (TVP) vector autoregression (VAR) with stochastic volatility techniques applied to the analysis of data from Canada, France, Germany, Japan, Spain, Sweden, United Kingdom and the United States of America. We confirm the trade-off heterogeneity across country, and its time-varying nature across time, showing in addition its fluctuation around a long-run reference value. We document significant short-run impacts of fiscal shocks on the unemployment-output trade-off which, based on the experience of the Global Financial Crisis, becomes larger in periods of economic turmoil. Policy-wise, the rebalancing of public finances may have unexpected adverse effects on job creation if implemented during slumps, precisely when the labour market sensitivity with respect to the performance of the product market is likely to be more acute. This message is particularly relevant in the aftermath of the Covid-19 pandemic.