Unconventional monetary policy and the (Neo)Fisher effect: has the federal reserve misunderstood monetary policy?

The failure of the Federal Reserve Bank to control inflation within its target range has raised concerns about potential misunderstandings in US monetary policy dynamics. The debate revolves around the Fisher effect, a traditional theory, and the NeoFisher effect, a recently proposed alternative theory, in relation to their applicability in the United States. Using wavelet tools and a monthly dataset from 2007:01 to 2023:04, we analyze the Fisher and NeoFisher effects in time-frequency space. Our findings indicate that policy choices significantly influence the behavior of individual time series, with unconventional monetary policy leading to greater variability and traditional policy resulting in weaker variability. Moreover, before the 2013–2014 taper tantrum, significant Fisher (NeoFisher) effects were observed at higher (lower) frequency synchronizations. However, afterward, NeoFisher effects dominate at both lower and higher frequency co-movements. Our results, which are consistent across different measures of nominal interest rates and inflation, bridge the gap between the NeoFisherian theory and empirical evidence, have ramifications for the Federal Reserve Bank’s credibility among economic agents and for Central Banks emulating US monetary policy.The Federal Reserve's approach to inflation control, influenced by traditional Fisher effects, has faced challenges since the global financial crisis, switching between undershooting and overshooting its 2% target. Emerging NeoFisherian insights suggest a paradigm shift: rather than the Fed controlling inflation through interest rate adjustments, inflation responds positively to these changes. Our study, employing advanced wavelet analysis, identifies structural breaks in monetary policy dynamics, revealing stronger variability under unconventional policies and persistent NeoFisher effects post-crisis. This raises critical questions about the efficacy of conventional monetary practices moving forward.Continuing with interest rate hikes to combat inflation risks perpetuating higher inflation rates, potentially eroding the Fed's credibility and fostering global economic instability. As the US influences global monetary norms, missteps could reverberate through international markets, impacting developing economies reliant on stable financial inflows. The implications are clear: embracing an enhanced understanding of monetary dynamics is crucial for sustainable economic management, emphasizing the need for policy frameworks that adapt to complex global realities rather than relying solely on traditional models.