Abstract
A common thread in the literature shows that an oil price shock can have a major impact on global economic conditions. We examine the global dimensions of changes to the global oil price and world economic uncertainty using three model types: ordinary least square (OLS); general additive model (GAM); and non-linear vector autoregression (VAR) model with local projections (LP). Our study highlights a positive and statistically significant effect of oil prices on economic uncertainty during non-expansionary periods, yet the impact is negative on economic uncertainty during periods of economic growth. Using a VAR-LP we analyze the global dimensions of a world oil price shock on global economic conditions and investigate whether there is consistency in how an oil price shock influences economic growth, consumer prices and economic uncertainty based on the state of economic conditions. The empirical evidence shows that during an expansionary (a non-expansionary) period, the impact of an oil price shock lowers (elevates) economic uncertainty. The empirical evidence from the three model types taken together indicate a presence of state dependence on the influence of an oil price shock.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: None declared.
A.1 Regression Results: Oil Inflation and Changes in Crude Oil Production
Table 5 below estimates the impact of global output growth (i.e. β y ) on oil inflation (π O ) and changes to crude oil supply (Δ ln S O ) based on stationary data.
Empirical results (OLS regression).
Dependent variable | ||
---|---|---|
π O | Δ ln S O | |
β y | 4.597c | 0.281c |
(0.445) | (0.068) | |
α | −5.412b | 0.305 |
(2.374) | (0.268) | |
Adjusted R2 | 0.337 | 0.171 |
F statistic | 62.991c | 25.526c |
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a, b, cDenote significance at 10 %, 5 % and 1 %, respectively. OLS robust standard errors are presented in parenthesis.
A.2 Alternative Non-linear Models

Oil price shock based on state-dependence (alternative non-linear model I – partial sample). IRFs depict nonlinear responses from an oil price shock for periods of economic expansion (left panel) and periods of economic slack (right panel).

Oil price shock based on state-dependence (alternative non-linear model II – full sample). IRFs depict nonlinear responses from an oil price shock for periods of economic expansion (left panel) and periods of economic slack (right panel).

Transition function based on state-dependence (alternative model II – full sample). The figures shows the weighted regime (i.e. F(z)). Shaded areas indicate OECD recession dates.

Oil price shock based on state-dependence (alternative non-linear model III – partial sample). IRFs depict nonlinear responses from an oil price shock for periods of economic expansion (left panel) and periods of economic slack (right panel).

Posterior means of coefficients (alternative model VI). Posterior means of coefficients of variables, based on a Bayesian TVP-VAR (based on one lag).
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Supplementary Material
This article contains supplementary material (https://doi.org/10.1515/snde-2023-0018).
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Articles in the same Issue
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- Research Articles
- Multiscale SUR Estimation of Systematic Risk
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Articles in the same Issue
- Frontmatter
- Research Articles
- Multiscale SUR Estimation of Systematic Risk
- A Simulation and Empirical Study of the Maximum Likelihood Estimator for Stochastic Volatility Jump-Diffusion Models
- Core Inflation Rate for China and the ASEAN-10 Countries: Smoothed Signal for Score-Driven Local Level Plus Scale Models
- Diversified Reward-Risk Parity in Portfolio Construction
- Time-Varying Parameter Four-Equation DSGE Model
- Does State Dependence Matter in Relation to Oil Price Shocks on Global Economic Conditions?