JAT (Journal of Accounting and Tax)
Vol. 5 No. 2 (2026): Special Issue

FIRM SIZE IN MODERATING ESG PERFORMANCE AND FIRM VALUE IN INDONESIA

Christian Adventus (Universitas Panca Bhakti)
Zicry Denni Mahardika (Universitas Panca Bhakti)
Rafly Ade Setyawan (Universitas Panca Bhakti)
Risal (Universitas Panca Bhakti)



Article Info

Publish Date
10 Aug 2026

Abstract

This research investigates how Environmental, Social, and Governance (ESG) metrics influence corporate worth within the Indonesian business landscape, while exploring corporate scale as a contextual moderator. Adopting a quantitative methodology, sample selection focused on enterprises registered on the Indonesia Stock Exchange (IDX) between 2017 and 2021 using specific purposive criteria. Corporate valuation was quantified through Tobin’s Q, sustainability disclosures were retrieved from ESG Intelligence, and organizational size was captured via market capitalization values. Statistical processing was executed through Moderated Regression Analysis (MRA). The data reveal that ESG compliance exerts a significantly positive effect on corporate worth, demonstrating that executing sustainable, ecofriendly, and socially responsible operations effectively boosts market standing. Moreover, structural moderation analytics confirm that company scale heavily interacts with this linkage, amplifying the favorable impact of sustainability initiatives on valuation metrics. This indicates that the rewards of ESG integration are substantially more evident in larger enterprises, driven by their extensive resource capabilities and intensified scrutiny from external stakeholders. These outcomes align with stakeholder theory, reinforcing that embedding ethical standards into corporate blueprints delivers sustainable competitive edges and protects corporate longevity.

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Journal Info

Abbrev

jat

Publisher

Subject

Economics, Econometrics & Finance

Description

JAT (Journal of Accounting and Tax) is a collection of journals, articles, ideas, concepts, theories, and research results from various fields related to Accounting and Tax. JAT welcomes papers with the above aims and scopes. This academic journal is published by the Faculty of Economics, ...