Inflation Dynamics in the Age of Robots: Evidence and Some Theory

Interesting BOJ working paper by Takuji Fueki and Kohei Maehashi.

Over the past decade, one of the central questions in macroeconomics has been the missing link observed between inflation and fluctuations in economic activity. We approach this issue with a particular focus on advances in robots, or what are essentially autonomous machines. The contributions of the
paper are twofold.

First, using a country level balanced panel dataset, we provide significant evidence to show that advances in robots are one factor behind the missing link. Second, we ask a standard New Keynesian model to rationalize this fact. The distinguishing feature is the introduction of capital which is substituted for human labor, and can therefore be interpreted as the use of robots.

Due to this feature and developments in robot, firms can adjust their production by using robots, whose efficiency is getting higher, instead of employing human labor. Hence, the responsiveness of marginal costs to changes in economic activity becomes weakened, and thus, our model supports the empirical fact that advances in robots are one factor behind the missing link.

 

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