An Analytical Review in Monetary Economics
By Dr. Sam, PhD | Independent Researcher
This paper provides an integrative analytical literature review of United States inflation dynamics. The evidence suggests that the Volcker disinflation played a central role in restoring monetary-policy credibility, which subsequently contributed to stronger anchoring of inflation expectations. Initial pandemic-era surges were dominated by product-market and supply disturbances, while persistent labor-market tightness contributed to subsequent wage pressures. Furthermore, we examine the Fiscal Theory of the Price Level (FTPL) as a complementary theoretical framework. This review draws on literature identified across principal economic repositories, emphasizing foundational and contemporary contributions published from 1968 through 2025. Sources are categorized into three evidentiary tiers: (1) peer-reviewed empirical and theoretical research, (2) major working papers and institutional research, and (3) historical and theoretical foundational works establishing intellectual lineage.
To systematically evaluate the literature, this paper constructs a conceptual decomposition modeling the inflation rate πt as:
Equation (1) is a conceptual decomposition rather than an estimable structural equation. It is used to organize the literature according to the principal mechanisms emphasized by different strands of the macroeconomic literature: Mt (monetary conditions), Et (expectations), St (supply shocks), Lt (labor conditions), and Ft (fiscal conditions).
By evaluating how the relative importance of these mechanisms varies across historical eras, the literature synthesis identifies the changing configuration of inflationary forces across regimes. The stabilization of U.S. inflation coincided with a fundamental change in the monetary-policy regime and the restoration of policy credibility, although the literature continues to debate the relative contribution of monetary-policy changes, expectations, supply disturbances, and other structural factors.
The subsequent Great Moderation was characterized by substantially lower volatility in aggregate economic activity and inflation. Over this period, improved monetary-policy credibility and increasingly well-anchored inflation expectations were among the factors associated with greater price stability (Coibion & Gorodnichenko, 2015), while the broader literature also emphasizes changes in inventory management, the frequency and magnitude of shocks, and other structural developments (McConnell & Perez-Quiros, 2000; Stock & Watson, 2002).
| Regime | Monetary Credibility | Expectations | Supply Shocks | Labor Market | Fiscal Conditions |
|---|---|---|---|---|---|
| 1970s | Weakening | De-anchoring | Important | Important | Relevant |
| Volcker Era | Restoration | Re-anchoring | Secondary | Tightening | Relevant |
| Great Moderation | Strong | Anchored | Generally contained | Moderate | Secondary |
| 2021–2022 | Strong initially | Reassessment | Very high | Increasingly important | Significant |
| Post-2022 | Tightening | Re-anchoring | Easing | Persistent | Increasingly relevant |
Note: The table represents the author's synthesis of the mechanisms emphasized in the literature and is intended as a qualitative regime classification rather than an econometric estimate of causal contributions.
Recent structural research by Bernanke and Blanchard (2025) finds that the initial surge in pandemic inflation was overwhelmingly driven by product-market price shocks. Complementary literature explicitly decomposing supply and demand factors confirms that sectoral constraints and commodity-price increases were primary drivers during this phase (Shapiro, 2022). As these supply constraints began to resolve, a tight labor market exerted a more persistent upward pressure on nominal wages.
The unprecedented scale of pandemic-era fiscal transfers (Jordà et al., 2022) also reignited interest in the FTPL. Building on foundations by Leeper (1991) and Sims (1994), Cochrane (2023) outlines a framework where the expected path of future fiscal surpluses influences the real valuation of government liabilities. Within FTPL, the equilibrium price level adjusts so that the real value of nominal government liabilities is consistent with the expected present value of future primary fiscal surpluses. This framework critically distinguishes government debt valuation from the non-structural claim that "deficits cause inflation"; rather, inflation can emerge when fiscal policy does not provide sufficient expected backing for nominal liabilities.
The post-pandemic episode suggests that inflation dynamics cannot be adequately characterized by a single mechanism. While monetary credibility and anchored expectations remain the foundation of price stability, fiscal policy can affect inflation through aggregate demand and, under particular regimes, through the valuation of government liabilities. The relative quantitative importance of these mechanisms across future business cycles remains a critical area for empirical investigation.