We investigate the extent to which fiscal factors have contributed to inflation in Japan over the past four decades. Despite sustained fiscal expansion and rising debt since the 1990s, inflation remained low until recent years. Using the medium-scale DSGE model developed by Bianchi et al. (2023), we estimate the model with Japanese data and find that, in contrast to the U.S. case, unfunded fiscal shocks are not the main drivers of inflation in Japan. Instead, real demand and supply shocks, along with accommodative monetary policy, have played more significant roles in shaping inflation dynamics.
Keywords: Inflation; Fiscal Theory of Price Level; Japan
Views expressed in the paper are those of the authors and do not necessarily reflect those of the Bank of Japan or Institute for Monetary and Economic Studies.