THE PHILLIPS CURVE AND AN ASSUMED UNIQUE MACROECONOMIC EQUILIBRIUM IN HISTORICAL CONTEXT

2016 ◽  
Vol 38 (4) ◽  
pp. 415-429 ◽  
Author(s):  
Richard G. Lipsey
Keyword(s):  
Evolutionary Theory ◽  
Inflation Targeting ◽  
Phillips Curve ◽  
Full Employment ◽  
Historical Context ◽  
Unique Equilibrium ◽  
Natural Rate ◽  
Natural Rate Of Unemployment ◽  
Wide Range ◽  
Current Behavior

An early post-WWII debate concerned the most desirable demand and inflationary pressures at which to run the economy. Context was provided by Keynesian theory devoid of a full employment equilibrium and containing its mainly forgotten, but still relevant, microeconomic underpinnings. A major input came with the estimates provided by the original Phillips curve. The debate seemed to be rendered obsolete by the curve’s expectations-augmented version with its natural rate of unemployment, and associated unique equilibrium GDP, as the only values consistent with stable inflation. The current behavior of economies with the successful inflation targeting is inconsistent with this natural-rate view, but is consistent with evolutionary theory in which economies have a wide range of GDP-compatible stable inflation. Now the early post-WWII debates are seen not to be as misguided as they appeared to be when economists came to accept the assumptions implicit in the expectations-augmented Phillips curve.

scholarly journals The Phillips Curve: A Case Study Of Theory And Practice

2020 ◽  
pp. 28-38
Author(s):  
K. Lawle ◽  
A. Moscardini ◽  
I. Pavlenko ◽  
T. Vlasova
Keyword(s):  
Systems Thinking ◽  
Inflation Targeting ◽  
Phillips Curve ◽  
Vertical Plane ◽  
Central Banking ◽  
Theory And Practice ◽  
Historical Narrative ◽  
Negative Slope ◽  
Wide Range

This paper develops a detailed case study of the Phillips Curve as it has evolved since Phillips classic work of 1958. An explicit narrative in the paper involves the evolution of the argument using economics and systems thinking, to develop underlying data generating models. These are shown to underpin the inverse relationship between inflation and unemployment in economics. The paper considers the political exigencies relating to the Great inflation of the 1970s and the Great Recession post 2008 in terms of interpretations of the Philips curve. The paper hypothesises that economic ideas have meaningful significance within the context of historical eras with concomitant political imperatives whence such notions become somnolent once crises have abated. This This historical narrative is implicit in the latest research reflections on Philips curves. A particularly useful finding is the relevance of systems thinking and systems dynamics to the interpretation of issues relating to aggregation problems in macroeconomics involving inflation and unemployment causal relationships. The paper concludes that seemingly moribund the Philips curve is alive may have been hibernating. Identifying the Phillips curve requires a wide range of variability of non-aggregative data streams. This allows the negative slope of the curve to be revealed, else the Philips curve slope is pushed towards the vertical plane. Endogenous central banking and inflation targeting intensifies this effect which is evident from a systems thinking /dynamics perspective.

scholarly journals Recovering Keynesian Phillips curve theory: hysteresis of ideas and the natural rate of unemployment

2018 ◽  
Vol 6 (4) ◽  
pp. 473-492 ◽  
Author(s):  
Thomas Palley
Keyword(s):  
Economic Theory ◽  
Phillips Curve ◽  
50Th Anniversary ◽  
Theoretical Argument ◽  
Natural Rate ◽  
Macroeconomic Theory ◽  
Natural Rate Of Unemployment ◽  
Economics Profession ◽  
Curve Theory

Economic theory is prone to hysteresis. Once an idea is adopted, it is difficult to change. In the 1970s, the economics profession abandoned the Keynesian Phillips curve and adopted Milton Friedman's natural rate of unemployment (NRU) hypothesis. The shift was facilitated by a series of lucky breaks. Despite much evidence against the NRU, and much evidence and theoretical argument supportive of the Keynesian Phillips curve, the NRU hypothesis remains ascendant. The hypothesis has had an enormous impact on macroeconomic theory and policy. 2018 is the 50th anniversary of Friedman's introduction of the NRU hypothesis. The anniversary offers an opportunity to challenge rather than celebrate it.

scholarly journals Offre globale en économie ouverte, courbe de Phillips et détermination du taux de chômage naturel : une reformulation théorique

2009 ◽  
Vol 55 (3) ◽  
pp. 375-396 ◽  
Author(s):  
Louis Phaneuf
Keyword(s):  
Phillips Curve ◽  
Structural Model ◽  
Reduced Form ◽  
Supply Side ◽  
Special Importance ◽  
Natural Rate ◽  
Explanatory Variables ◽  
Natural Rate Of Unemployment ◽  
Long Run

Criticizing the fact the Phillips curve wage and price equations are usually reduced form or quasi-reduced form equations without an explicit structural model behind, this article is an attempt to provide a supply side based structural model of the Phillips curve. Of special importance are the theoretical specifications of the resulting wage and price equations that include several new explanatory variables and especially policy variables. After having demonstrated under what structural conditions the price-Phillips curve of this model will be a vertical in the long run, the model is solved for the theoretical specification of the natural rate of unemployment.

scholarly journals Market Power, NAIRU, and the Phillips Curve

2020 ◽  
Vol 2020 ◽  
pp. 1-18
Author(s):  
Derek Zweig
Keyword(s):  
Interest Rates ◽  
Phillips Curve ◽  
Functional Form ◽  
The United States ◽  
Medium Term ◽  
Natural Rate ◽  
Natural Rate Of Unemployment ◽  
Long Run ◽  
Weak Evidence ◽  
Short Run

We explore the relationship between unemployment and inflation in the United States (1949-2019) through both Bayesian and spectral lenses. We employ Bayesian vector autoregression (“BVAR”) to expose empirical interrelationships between unemployment, inflation, and interest rates. Generally, we do find short-run behavior consistent with the Phillips curve, though it tends to break down over the longer term. Emphasis is also placed on Phelps’ and Friedman’s NAIRU theory using both a simplistic functional form and BVAR. We find weak evidence supporting the NAIRU theory from the simplistic model, but stronger evidence using BVAR. A wavelet analysis reveals that the short-run NAIRU theory and Phillips curve relationships may be time-dependent, while the long-run relationships are essentially vertical, suggesting instead that each relationship is primarily observed over the medium-term (2-10 years), though the economically significant medium-term region has narrowed in recent decades to roughly 4-7 years. We pay homage to Phillips’ original work, using his functional form to compare potential differences in labor bargaining power attributable to labor scarcity, partitioned by skill level (as defined by educational attainment). We find evidence that the wage Phillips curve is more stable for individuals with higher skill and that higher skilled labor may enjoy a lower natural rate of unemployment.

Comparative Properties of Models of the UK Economy

1990 ◽  
Vol 133 ◽  
pp. 91-115 ◽  
Author(s):  
P.G. Fisher ◽  
D.S. Turner ◽  
K.F. Wallis ◽  
J.D. Whitley
Keyword(s):  
Phillips Curve ◽  
Demand Management ◽  
Nominal Wage ◽  
Natural Rate ◽  
Price Inflation ◽  
Trade Off ◽  
Natural Rate Of Unemployment ◽  
Long Run ◽  
Recent Developments ◽  
The Uk

The nature of the association between inflation and the level of unemployment has been a persistent issue of controversy over the last three decades. Initially, attention focussed on the statistical relationship between nominal wage inflation and unemployment— the Phillips curve—which could be seen equally as a relationship between price inflation and unemployment, if prices are a constant mark-up on wages. This was quickly adopted as a menu for policy choice, describing the trade-off between increases in unemployment and reductions in inflation. By the 1970s, however, the question was whether a long-run trade-off existed at all, the OECD economies having experienced rising unemployment and, simultaneously, rising inflation. The subsequent re-examination of labour market behaviour introduced the concept of an equilibrium rate (the natural rate) of unemployment which, in the monetarist view, was not amenable to demand management policies. More recent developments reflect a growing concern with the supply side of the economy, including the question of what determines the non accelerating inflation rate of unemployment (NAIRU).

scholarly journals Time to Ditch the NAIRU

1997 ◽  
Vol 11 (1) ◽  
pp. 93-108 ◽  
Author(s):  
James K Galbraith
Keyword(s):  
Inflation Rate ◽  
Phillips Curve ◽  
Social Costs ◽  
Natural Rate ◽  
Natural Rate Of Unemployment

The concept of a natural rate of unemployment, or nonaccelerating inflation rate of unemployment (NAIRU), remains controversial after twenty-five years. This essay presents a brief for no-confidence, in four parts. First, the theoretical case for the natural rate is not compelling. Second, the evidence for a vertical Phillips curve and the associated accelerationist hypothesis that lowering unemployment past the NAIRU leads to unacceptable acceleration of inflation is weak. Third, economists have failed to reach professional consensus on estimating the NAIRU. Fourth, adherence to the concept as a guide to policy has major social costs but negligible benefits.

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