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Essays on Climate Policy

Identification

Clé publique

doi:10.25911/c1m1-pn59

Auteurs

Kim, Mi Lim

Année déclarée

2026

Langue déclarée

und · en_AU

Type source

Thesis (PhD)

Première détection

2026-11-09T19:08:54.884878+00:00

Dernière observation des métadonnées

2026-11-09T19:08:54.884878+00:00

Dernière vérification HTTP

Non effectuée

Résumé documentaire — langue originale

This thesis discusses the environmental effectiveness of climate policy across three essays. Chapter 1 is the first essay, which investigates the impacts of coal taxes in Richter et al. (2018) using a global computable general equilibrium (CGE) model. While the energy optimisation model projects that coal taxes contribute to global emissions reductions and an improvement in Australia's welfare, the global CGE model indicates that coal taxes would be costly for tax-setting countries and inefficient in reducing global emissions due to large leakages resulting from the high substitutability of coal and negative capital shocks in tax-setting countries. The second essay evaluates whether carbon pricing has reduced carbon emissions intensity per unit of output compared with its counterfactual by synthesising quasi-experimental studies. A meta-regression analysis using 257 effect sizes from forty-one articles suggests that the true effect of carbon pricing ranges from -3.4% to -8.2%. Most meta-regression models examining heterogeneity across regions, data granularity, and treatment durations show no significant differences across studies. Although the meta-analysis presents large and statistically significant effects of carbon pricing, the substantial risk of bias in the primary studies indicates that these results should be interpreted with caution. The third essay assesses the environmental effectiveness of Phase 2 of the Korean emissions trading scheme (KETS) using a regression discontinuity (RD) design and business-premise-level data. Although the estimated effects are limited to local average treatment effects and to the first two years of Phase 2 of the KETS, the results suggest that the KETS was not more effective than the Korean Government's command-and-control regulation, namely the Target Management Scheme (TMS), as an emissions mitigation policy. The findings are supported by a range of validation and robustness tests. These results may be explained by the relatively generous design of the scheme. The results also imply that the introduction of carbon pricing alone does not necessarily lead to reductions in greenhouse gas emissions. Rather, effective governance that support emissions reductions are equally important. This thesis employs different data sources and methodologies across the three essays to evaluate the environmental effectiveness of carbon pricing. The first essay highlights that the high substitutability of coal can lead to the environmental ineffectiveness of coal taxes and decreases in the economic welfare of tax-setting countries. The second essay identifies the true effects of carbon pricing on the carbon intensity through evidence synthesis and reveals substantial publication selection bias and a large risk of bias in the existing literature. While the findings of the third essay align with previous literature reporting insignificant or positive effects of carbon pricing, they contrast with much of the literature that finds statistically significant emissions reductions. These findings emphasise the need for rigorous, ongoing research on climate policy. A natural extension of the first essay would involve examining the impacts of broader supply-side climate policies and the role of clean technology on coal use using a model that incorporates interactions between climate and the economy. The endogenous kink model (Bom & Rachinger, 2019), which assumes a threshold of standard errors in publication selection bias, may offer deeper insight into selective reporting and the true effect of carbon pricing. Leakage, which is not often considered in quasi-experimental approaches, is also a promising area for further research.

Identifiants

DOI

10.25911/c1m1-pn59

HANDLE

1885/733808945

OAI

oai:openresearch-repository.anu.edu.au:1885/733808945

Repères documentaires

Famille documentaire

Thèse

Types déclarés par les sources

Thesis (PhD)

Les mentions d’entités ne constituent pas une preuve de reconnaissance juridique. La juridiction étudiée est distincte du pays d’affiliation des auteurs.

Sources

Repository · Document 1 · Document 2

• DOI · https://doi.org/10.25911/c1m1-pn59
• Document · https://hdl.handle.net/1885/733808945

Statut documentaire

Pertinence à examiner

Bibliothèque

Cette identité n’est pas encore intégrée à la Bibliothèque juridique.