A strong hysteretic model of Okun’s Law: theory and a preliminary investigation

This paper presents a ‘strong hysteretic’ version of Okun’s Law, that is, a version of the law in which ‘history matters.’ In this version of the link between fluctuations in unemployment and growth, the most important past growth shock exerts an influence on the current unemployment rate. A theoretical framework is proposed in order to lay the foundations of this version of Okun’s Law. In this framework, the hysteresis property arises because a large number of heterogeneous firms discontinuously adjust their activity levels in response to fluctuations in the rate of growth. The foundations having been laid, a method for empirically testing our hysteretic Okun’s Law is presented. An algorithm permits construction of a hysteresis operator, which synthesizes, for every moment, the growth shocks that have remained in the memory bank of the unemployment rate. Empirical tests are conducted to assess the empirical relevance of this version of Okun’s Law, as compared to the more familiar linear relationship. Empirical results consistent with hysteresis are found for several of the countries in our sample.     

Okun’s law revisited: a threshold in regression quantiles approach

This article proposes, for the first time, a threshold in regression quantiles approach to the analysis of Okun’s law. By applying to US data over the 1948Q1–2016Q4 period, we have three major findings. First, a single threshold is detected for both multiple and individual quantiles cases. However, the effect of threshold nonlinearity is only present in the middle to upper quantiles of the conditional unemployment distribution in the individual quantiles case. Second, the first-order autoregressive coefficients of unemployment are significantly larger in the lower-growth regime, indicating that shocks to unemployment appear to be more persistent during recessions. Finally, the Okun’s coefficients are all negative across the recessionary and expansionary regimes, confirming the validity of Okun’s law. Moreover, the Okun’s coefficients are smaller (more negative) in the lower-growth regime, suggesting that the effect of differenced output on differenced unemployment is asymmetric, and is more pronounced in recessions.     

The pyramid of Okun’s coefficient for Italy

Our aim is to propose a pyramid of Okun’s coefficient by age and gender in the Italian labour force using a varying-coefficient model. The unemployment rate by age and gender—useful information for estimating Okun’s relationship—is not available for Italy from official statistics. Therefore, we provide an estimation of the indicator using microdata for the 2005–2014 period from ISTAT, the Italian labour force survey. Okun’s law is investigated using two measures of the unemployment rate: a traditional measure based on a labour force with and without work experience, and a new measure restricted to the labour force with experience. When Okun’s relationship is estimated using the unemployment rate restricted to the labour force with experience, the young population is less sensitive to business cycles. As the workforce ages, this gap in sensitivity tends to shrink. We also found that there are no significant differences by gender in the magnitude of Okun’s coefficient among the youngest population when considering the unemployment rate restricted to the labour force with experience.     

Regional growth and unemployment in the medium run: asymmetric cointegrated Okun’s Law for UK regions

This article tests for the presence of a medium-run asymmetric Okun’s Law relationship between regional output and regional unemployment rate in UK regions. The test is performed with a panel data version of the hidden cointegration technique suggested by Granger and Yoon. A novelty of the article is to combine the method of hidden cointegration with a panel data method of removing cross-sectional dependence. The medium-run Okun relationship for regions in the UK appears to confirm results found elsewhere in the literature on countries as a whole, although the coefficients tend to be smaller.     

Time variation in Okun’s law in Sweden

In this article we estimate an Okun’s law relationship for Sweden using a model with time-varying parameters. Employing quarterly data from 1982 to 2014, results indicate that the GDP growth needed to keep the unemployment rate unchanged in the long rung has fallen considerably over the last 10 years.     

Testing Okun’s law with Swiss industry data

Okun’s law postulates a stable relationship between quarterly output growth and changes in (un)employment. This proposition has so far been tested with macroeconomic data at the highest level of aggregation. The article goes beyond that in extending the analysis to industry data from Switzerland, applying a method suggested by the International Monetary Fund. Another focus is on whether expansions in production have become more ‘jobless’ over the most recent business cycle compared to earlier ones. This does not seem to be the case in Switzerland, except in the construction industry.     

A new approach to determining sectoral priorities in an economy: input–Output elasticities

This paper uses input–Output elasticities to identify important economic sectors. Elasticities of output employment and income are used to identify key sectors of the Greek economy. A comparison of the rankings of economic sectors based on input–output elasticities with those based on net backward linkages indicates significant divergence in sectoral rankings obtained from the two approaches. The elasticity approach yields more consistent estimates of sectoral output employment and income potentials than the net backward linkage approach. Measured in terms of the potential to generate output employment and income agriculture services and textiles are found to be the key sectors for the Greek economy.     

The effects of inflation targeting on Okun’s law

This article provides the first empirical evidence that the adoption of inflation targeting (IT) matters for the extent of tradeoff between unemployment and output, that is Okun’s law. Our full sample results indicate that IT leads to a more negative Okun’s coefficient, suggesting that, for a given reduction of output, the introduction of IT is associated with a higher unemployment rate. Subsample analyses reveal that the whole sample results are mainly driven by the industrial subsample outcomes, not the developing counterparts. Our findings point out that IT not only influences macroeconomic variables per se but also affects the relationship between/among macroeconomic variables.     

“Thirlwall’s Law” reconsidered

Thirlwall’s Law is found to be the necessary but not sufficient condition for balanced long-run growth. A simple equation is considered whose empirical analysis could confirm—or reject—the validity of the Law. The analysis, conducted by means of econometric co-integration using the Dynamic Ordinary Least Squares method applied to data for 59 countries covering the years 1960–2012, suggests that Thirlwall’s Law may not hold for the decisive majority of countries.     

Age effects in Okun’s law with different indicators of unemployment

We reassess the results from the literature on the relationship between the youth unemployment rate and GDP growth (Okun’s law), based on the concern that the unemployment rate is not an ideal indicator for teenagers and young adults. Using the unemployment ratio instead, we find that youth unemployment (15–24 years old) is not significantly more responsive to economic growth than prime-age (25–64) unemployment. However, compared to prime-age unemployment, teenagers’ unemployment (15–19) is relatively unresponsive, whereas young adult’s (20–24) unemployment is more strongly correlated with economic growth. These results are quite different than those obtained with the unemployment rate as the dependent variable.     

Unemployment and output dynamics in CIS countries: Okun’s law revisited

Okun’s law is a well-known relationship between the change in the unemployment rate and output growth. The main objective of this article is to provide a rigorous econometric analysis of Okun’s law for several CIS countries using different models and theoretically justified econometric methods. The traditional approach to Okun’s law estimation using OLS regressions does not account for possible endogeneity of regressors and the implied inconsistency of the estimates obtained. These problems point out to incorrectness of applications of the standard OLS estimation techniques. Our study addresses these issues by using econometrically justified instrumental variable regression methods. The article provides the results and discussions on practical use of Okun’s relationships for evaluation of average effects of economic growth on the unemployment rate, and vice versa; importance of accounting for confidence intervals in applications of Okun’s models to economic development analysis and cross-country comparisons and evaluation of effects of crises and other structural shocks on the economies considered. We also discuss in detail the results of formal econometric tests and economic motivation for validity of instrumental variables used in the study. The formal econometric tests, together with economic arguments, allow us to determine the most appropriate Okun-type models for each of the CIS countries under consideration.     

Can the baseline search and matching model quantitatively explain Okun’s law?

Okun’s Law is an empirically observed, negative relationship between changes in an economy’s unemployment rate and its growth rate of output. The baseline search and matching model with stochastic labour productivity fails to match the Okun’s coefficient, because it generates a too low unemployment volatility and a too high correlation between labour productivity and unemployment. The model is capable of matching the coefficient if it is extended with an addition of employment separation shocks plus a high calibrated value of nonmarket activities. This article also shows that changes in the stochastic properties of exogenous shocks could explain changes in the Okun’s coefficient in the Great Moderation (1984–2007).     

A subjectivist’s solution to the limits of public choice

In light of Wittman (1995) and Caplan (2007) this paper contends that the rational-choice approach to political science (“Public Choice theory”) has reached a dead end. By critiquing their treatment of rationality, knowledge assumptions, and views of the democratic process, an alternative is presented based on the core insight of the “Epistemic Primacy Thesis”. This subjectivist approach to political economy is introduced in light of an existing debate between the compatibility (or otherwise) of Austrian economics and Public Choice theory.     

The People’s bank of China’s response to the coronavirus pandemic: A quantitative assessment

The People’s Bank of China (PBoC) has implemented numerous measures to cushion the impacts of the COVID-19 health crisis on the Chinese economy. Since the current monetary policy framework features a multi-instrument mix of liquidity tools and pricing signals, we employ a dynamic-factor modelling approach to derive a composite indicator of China’s monetary policy stance. Our quantitative assessment shows that the PBoC’s policy response to the outbreak of the COVID-19 pandemic has been swift and decisive. Specifically, our estimates reveal that the PBoC has implemented novel policy measures to ensure that commercial banks maintain liquidity access and credit provision during the COVID-19 crisis.     

Money in occupied New Orleans, 1862–1868: A test of Selgin’s “salvaging” of Gresham’s Law

We examine the monetary experience of New Orleans when it was occupied during and immediately following the Civil War, using newly assembled data regarding the quantity and market value of the city’s municipal notes and the city’s fiscal position. Municipal notes, acceptable for taxes, circulated at face value in retail transactions (and at only a small discount in broker transactions) as long as their supply was sufficiently limited, and they fell out of circulation and were priced at a discount relative to interest-bearing municipal bonds, when concern arose about their overissue. The spontaneous rejection of New Orleans municipal notes exemplifies how choice in currency works when insufficiently backed money is not supported by legal tender laws.