Indonesian Journal of Sustainability Policy and Technology

Sustainability Reporting and Investors' Perception: Evidence from Selected Sectors in Nigeria

2026-05-18T03:59:53+00:00

Purpose: The study aimed to investigate the effect of sustainability reporting on investors’ perceptions in Nigeria, specifically examining how environmental, social, and governance (ESG) disclosures influence the Price Earnings (P/E) ratio of listed firms.

Method: An ex-post facto research design was employed using panel data from ten listed firms in the oil and gas and industrial goods sectors between 2015 and 2024. Data were collected from annual reports, sustainability reports, and NGX sources. ESG disclosure indices were constructed and normalized. Panel regression techniques were applied, with the Hausman test supporting the use of fixed effects.

Findings: The results revealed that environmental, social, and governance disclosures had a positive and significant effect on the P/E ratio. The combined ESG model explained 34.56% of the variation in P/E ratios, indicating that sustainability reporting is value-relevant for investors.

Implication: The study recommends that firms enhance the quality of ESG disclosures and that regulators promote standardized reporting practices. Such measures would improve market transparency and strengthen investor confidence in Nigeria’s capital market.

Originality: This research provides empirical evidence from Nigeria, highlighting the direct link between sustainability reporting and investor valuation metrics. It contributes to the literature by demonstrating the relevance of ESG disclosures in shaping investor perceptions in emerging markets.

Literature Review of XBRL Implementation in South Korean Financial Reporting: Implications for Sustainable Business Practices

2026-05-18T03:59:54+00:00

Purpose: This paper explores the development of accounting information systems (AIS) and the adoption of eXtensible Business Reporting Language (XBRL) in South Korea, with particular attention to their implications for corporate reporting and business sustainability.

Method: A qualitative literature review was undertaken, drawing on scholarly articles and institutional reports identified through targeted keywords. The selected sources encompass empirical studies on XBRL implementation in the Korean capital market, research on AIS development in both large firms and SMEs, and recent works that connect AIS quality with sustainability outcomes.

Findings: South Korea was among the earliest countries to mandate XBRL-based electronic filing through the DART system. Empirical evidence demonstrates that XBRL adoption reduces information asymmetry, lowers equity financing costs, and shortens reporting delays, especially for early adopters. Moreover, Korean firms are modernizing AIS by integrating cloud computing, big data, and artificial intelligence, which enhances efficiency and organizational performance. In addition, recent studies highlight that high-quality AIS contributes positively to sustainability performance through improved information reliability, user satisfaction, and system utilization.

Implication: The convergence of advanced AIS and XBRL reporting establishes a strong digital infrastructure that fosters transparency, accountability, and long-term sustainability. This experience provides valuable insights for other countries, including Indonesia, in developing digital reporting ecosystems.

Originality: By synthesizing diverse strands of literature on AIS and XBRL in South Korea and explicitly linking them to sustainability perspectives, this paper offers an integrated analysis that is useful for students, researchers, and policymakers.

Determinants of Information System Success in the Public Sector: The Moderating Role of Management Support, Tax Complexity, and Locus of Control

2026-05-18T03:59:54+00:00

Purpose: This study aims to examine and analyze the influence of user participation in information system development on system success. Furthermore, it evaluates the role of three contingency factors—top management support, task complexity, and locus of control—as moderating variables influencing this relationship in the context of public services in Indonesia.

Method: The research employs a quantitative approach focusing on employees of the tax service office in Malang Regency. A sample of 50 respondents was selected using a simple random sampling technique via the Slovin method. Data were collected through questionnaires and analyzed using Moderated Regression Analysis (MRA) and subgroup analysis to determine the type of moderating variables.

Findings: The findings indicate that user participation has a significant positive relationship with information system success. All three contingency factors (management support, task complexity, and locus of control) were proven to act as quasi-moderators. Specifically, high management support and an internal locus of control strengthen the relationship between participation and system success. However, unlike previous studies, lower task complexity showed a greater influence on the relationship in this specific study.

Implication: Practically, public sector managers should consider situational factors and individual characteristics before involving users in system development. User participation is not the sole determinant of success; active top management support and an understanding of employees' self-control orientation are crucial for ensuring effective information system implementation to improve public service.

Originality: This study provides empirical evidence on the implementation of New Public Management in Indonesia, particularly within tax service offices. The novelty lies in the finding that task complexity in certain public sector organizations may exhibit different influence patterns on IT success compared to the private sector or organizations in other countries.

Coffee Trade Dynamics: The Impact of Tariff and Non-Tariff Policies in Japan and the United States

2026-05-23T21:33:19+00:00

Purpose: This study aims to analyze the impact of tariff and non-tariff barriers on the government and export sectors, with a focus on coffee. Coffee was selected based on Indonesia's high coffee production, reaching 11.85 million bags in the 2022/2023 period, and its crucial role in international trade.

Method: The research method used panel data and tabular data over the past five years from previous research. The countries studied were Japan and the United States, which are Indonesia's largest coffee importers. The analysis was conducted to examine trends in Indonesian coffee exports to these two countries in relation to applicable tariff policies.

Findings: Research results show that Indonesian coffee exports to Japan and the United States have declined year over year. The primary factor contributing to this decline is the tariff policies, both tariff barriers and non-tariff barriers, imposed by the export destination countries.

Implication: These findings imply that tariff policies significantly impact the competitiveness of Indonesian coffee exports. The government needs to consider trade diplomacy strategies and export market diversification to prevent dependence on a particular country from significantly endangering the sustainability of coffee exports.

Originality: The uniqueness of this research lies in its focus on coffee, with case studies of exports to Japan and the United States. Using panel data from the past five years, this study provides an empirical overview of how tariff policies may influence Indonesian coffee export trends, while also opening up opportunities for further research on international trade strategies.

XBRL as an Accounting Information System Innovation: A Study of Application to Australian Financial Reporting

2026-05-23T10:49:49+00:00

Purpose: This study examines the role of eXtensible Business Reporting Language (XBRL) within Accounting Information Systems (AIS) and evaluates its implementation in Australia’s digital reporting ecosystem. It aims to identify the determinants of XBRL adoption, assess its contribution to reporting quality, and analyze how regulatory and technological infrastructures enable national-scale digital reporting.

Method: A descriptive qualitative approach was applied, drawing on an extensive literature review comprising five core academic sources, international regulatory documents, and Australia’s Standard Business Reporting (SBR) framework. The analysis focuses on AIS–XBRL integration, policy development, and cross-institutional reporting practices involving ASIC, ATO, and APRA.

Findings: The study finds that XBRL enhances reporting accuracy, transparency, comparability, and processing efficiency through standardized taxonomies and automated validation mechanisms. Within AIS, XBRL supports a unified source of financial data, reducing discrepancies and improving decision-making. Australia’s SBR initiative shows strong effectiveness due to robust regulatory coordination and technological readiness. However, challenges remain, particularly limited adoption among smaller entities, insufficient technical competencies, and high initial implementation costs.

Implication: The findings highlight the strategic importance of XBRL for digital reporting, regulatory oversight, and national data governance. They emphasize the need for capacity-building, policy reinforcement, and technical support to ensure inclusive adoption, especially for SMEs.

Originality: This study integrates AIS theory, digital reporting policy, and national-level XBRL implementation, offering new insights into cross-institutional reporting ecosystems and future directions for digital disclosure, including potential extensions into sustainability reporting.