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AI activity lifts demand for China’s education and training market primarily in bullish conditions, while policy uncertainty tends to depress it during calmer periods. Risk spillovers from AI to training are larger and more volatile than those from policy uncertainty, implying policymakers should balance AI-driven opportunity with market stability.

Quantile-based Nonlinear Impact of Artificial Intelligence and Economic Policy Uncertainty on Education and Training Market in China
Liyao Cui · May 25, 2026 · Journal of Economics and Public Finance
openalex correlational low evidence 7/10 relevance DOI Source PDF
Quantile-based time-series evidence from China shows AI activity positively predicts growth in the education and training market chiefly in bullish market quantiles, while economic policy uncertainty negatively predicts ETM mainly during stable periods, and AI generates larger, more volatile upside risk spillovers to ETM than EPU.

In recent years, with the rapid development of artificial intelligence (AI) technology and the intensification of global economic policy uncertainty (EPU), China's education and training market (ETM) is facing unprecedented challenges and opportunities. This paper analyzed the quantile-based nonlinear impact of AI and EPU on ETM in China, and the results are as follows: 1. The nonparametric quantile causality test shows that there is a unidirectional causal relationship between AI and EPU, AI and ETM, as well as EPU and ETM; 2. The cross-quantilogram indicates that there is a quantile dependence among the three: the positive predictive effect of AI on ETM is mainly concentrated in bullish markets, the negative predictive effect of EPU on ETM is mainly concentrated in periods of policy stability, and there is an interaction between AI and EPU (AI promotes EPU in bullish markets, while EPU promotes AI during periods of economic stability); 3. The GARCH-Conditional quantile regression- model reveals the asymmetry of risk spillovers—the intensity of upside risk spillovers is far greater than that of downside ones. The risk spillover from AI to ETM is characterized by high volatility and strong extremeness, while the impact of EPU is relatively moderate but more persistent. The results suggested that policy makers, education and training organizations should comprehensively consider AI and EPU to cope with market uncertainty and ensure the stability and sustainability of ETM in China.

Summary

Main Finding

Using quantile-based, nonlinear time-series methods, the paper finds that AI activity and global economic policy uncertainty (EPU) jointly and asymmetrically affect China’s education and training market (ETM). There are unidirectional causal links (AI → EPU, AI → ETM, EPU → ETM). AI has a positive predictive effect on ETM concentrated in bullish market states, while EPU has a negative predictive effect concentrated in more stable policy periods. Risk spillovers are asymmetric: upside/extreme risk transmission (especially from AI to ETM) is much stronger and more volatile than downside transmission, whereas EPU’s effects are milder but more persistent.

Key Points

  • Nonparametric quantile causality tests detect unidirectional causal relationships:
    • AI → EPU
    • AI → ETM
    • EPU → ETM
  • Cross-quantilogram analysis reveals quantile-dependent predictive links:
    • AI positively predicts ETM mainly in upper-tail (bullish) states.
    • EPU negatively predicts ETM mainly in periods characterized by policy stability (non-crisis states).
    • Interaction: AI tends to raise EPU in bullish markets; EPU tends to stimulate AI activity during stable economic conditions.
  • GARCH–conditional quantile regression exposes asymmetric risk spillovers:
    • Upside (extreme positive) spillovers are much larger than downside ones.
    • AI → ETM spillovers show high volatility and fat-tail/extreme behavior.
    • EPU’s impacts are lower in instantaneous intensity but more persistent over time.
  • Practical conclusion: effective ETM policy must jointly consider AI dynamics and EPU, with attention to state-dependent (quantile) effects and asymmetric risk.

Data & Methods

  • Data (described at a conceptual level): time-series indicators for China’s AI activity (e.g., AI investment/usage or an AI index), global or China-specific EPU index, and measures of the education & training market (ETM) — applied at a frequency suitable for time-series analysis.
  • Main empirical tools:
    • Nonparametric quantile causality test: assesses directional predictive causality across different quantiles of the conditional distribution, allowing detection of state-dependent causal links that vary across market conditions.
    • Cross-quantilogram: measures lead–lag dependence across quantiles of two series to identify which parts of the distribution (e.g., tails vs center) drive predictability and interaction.
    • GARCH–conditional quantile regression: models time-varying volatility and estimates conditional quantiles to examine asymmetric tail risk spillovers and the extremeness of shocks (separating upside vs downside spillovers).
  • What these methods enable: identification of nonlinear, state-dependent causality and asymmetric tail transmission that standard mean-based or linear models would miss. (Paper likely includes robustness checks across quantile ranges and lag structures.)

Implications for AI Economics

  • Policy design:
    • Adopt state-contingent (quantile-aware) policies: interventions should differ by market state (e.g., support AI-driven ETM uptake in downturns; dampen overheating in bull states).
    • Monitor AI activity as a potential amplifier of EPU in bullish episodes and be prepared with macroprudential or information-stabilizing measures.
    • Because EPU effects are persistent, combine short-term stabilization with longer-term measures (e.g., regulatory clarity, predictable policy signaling) to reduce drag on ETM.
  • For education & training providers:
    • Prepare for high-volatility, tail-driven changes from AI shocks (inventory, capacity, pricing strategies should account for extreme positive swings as well as persistent policy-driven demand shifts).
    • Use AI strategically to capture upside demand in bullish periods, while building resilience to policy-driven slowdowns.
  • For researchers and forecasters:
    • Models of technology–market interaction should incorporate quantile-dependent links and asymmetric tail risk (GARCH-quantile or cross-quantile tools).
    • Microdata and regional/sectoral heterogeneity analysis would help unpack channels (e.g., which segments of ETM are most exposed to AI-driven extreme swings).
  • For investors and risk managers:
    • Tail-aware risk management is crucial: leverage stress tests that incorporate asymmetric upside risk from AI and persistent downside pressure from elevated EPU.
    • Pay attention to leading quantile signals (e.g., upper-tail AI indicators) as early predictors of ETM booms.

Potential next steps: refine causal identification (instrumental or natural-experiment approaches), disaggregate ETM by subsector and region, and evaluate policy interventions tailored to quantile-specific dynamics.

Assessment

Paper Typecorrelational Evidence Strengthlow — Findings rely on predictive/time-series causality methods (Granger-style quantile tests) and model-based spillover estimates rather than exogenous variation; results plausibly reflect associations and dynamic lead-lag relationships but do not establish strong causal identification against omitted confounders, reverse causation beyond predictive ordering, or measurement error in AI and ETM proxies. Methods Rigormedium — Employs advanced, appropriate time-series tools (nonparametric quantile causality, cross-quantilogram, GARCH-CQR) that can reveal rich distributional dynamics and asymmetric risks, but rigor is limited by reliance on aggregate proxies, potential nonstationarity, sensitivity to lag selection and model specification, and absence of robustness checks based on exogenous shocks or alternative identification strategies. SampleAggregate time-series data for China covering recent years (unspecified period) on three indices/proxies: an AI activity index (constructed proxy for AI development/usage), the Economic Policy Uncertainty (EPU) index for China, and metrics capturing the education and training market (ETM); frequency and exact variable construction are not reported in the summary. Themesskills_training governance IdentificationUses time-series predictive and dependence methods: nonparametric quantile Granger-causality tests to detect directional predictability, cross-quantilogram to measure quantile-to-quantile predictive dependence, and a GARCH-conditional quantile regression to estimate asymmetric risk spillovers; no exogenous instruments or natural experiments are used. GeneralizabilityChina-only context — may not apply to other countries with different institutions or labor markets, Macro/aggregate ETM measure — masks heterogeneity across regions, sectors, firm sizes, and program types, Dependent on how 'AI' is proxied (patents, investment, searches, stock indices); results sensitive to measurement choices, Short/recent time-series window (recent years) — may reflect transient dynamics around technology cycles or policy episodes, Observational time-series design — limited external validity for causal policy prescriptions

Claims (11)

ClaimDirectionConfidenceOutcomeDetails
The nonparametric quantile causality test shows a unidirectional causal relationship from AI to EPU. Governance And Regulation positive high Economic Policy Uncertainty (EPU)
0.3
The nonparametric quantile causality test shows a unidirectional causal relationship from AI to China’s education and training market (ETM). Adoption Rate positive high Education and training market (ETM)
0.3
The nonparametric quantile causality test shows a unidirectional causal relationship from EPU to China’s education and training market (ETM). Adoption Rate negative high Education and training market (ETM)
0.3
The cross-quantilogram indicates quantile dependence among AI, EPU and ETM: the positive predictive effect of AI on ETM is mainly concentrated in bullish markets. Adoption Rate positive high Education and training market (ETM) (predictive effect)
0.3
The cross-quantilogram indicates that the negative predictive effect of EPU on ETM is mainly concentrated in periods of policy stability. Adoption Rate negative high Education and training market (ETM) (predictive effect)
0.3
There is an interaction between AI and EPU: AI promotes EPU in bullish markets. Governance And Regulation positive high Economic Policy Uncertainty (EPU)
0.3
There is an interaction between AI and EPU: EPU promotes AI during periods of economic stability. Adoption Rate positive high AI (as the dependent/predicted variable)
0.3
A GARCH–conditional quantile regression model reveals asymmetry of risk spillovers: the intensity of upside risk spillovers is far greater than downside ones. Organizational Efficiency negative high Risk spillovers (upside vs. downside intensity)
0.3
The risk spillover from AI to ETM is characterized by high volatility and strong extremeness. Organizational Efficiency negative high ETM volatility and tail/extreme risk
0.3
The impact of EPU on ETM is relatively moderate in intensity but more persistent compared with the impact from AI. Adoption Rate negative high ETM impact (intensity and persistence)
0.3
Policy makers and education/training organizations should comprehensively consider AI and EPU to cope with market uncertainty and ensure the stability and sustainability of China’s ETM. Governance And Regulation positive high Stability and sustainability of the education and training market (ETM)
0.05

Notes