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This research explores how monopoly markets operate in the context of a sharia-based microeconomy, with a primary focus on how prices are regulated based on the principle of adl or justice. Unlike traditional monopolies, which often create inefficiencies in resource allocation and exploit consumers, Islamic teachings require fair prices, in accordance with the Quran's prohibition of gharar (uncertainty) and zulm (oppression). Referring to the theories of Ibn Taymiyyah and modern thinkers such as Chapra, we examine how monopoly companies can achieve maslahah or mutual benefit through profit restrictions, combining prices with zakat, and supervision by a sharia council. Through a simple mathematical model, we prove that monopolies regulated by justice produce better Pareto outcomes than equilibria that only maximize profits, by reducing social losses while still encouraging innovation. Empirical data from Islamic markets in Indonesia, such as halal commodities, support these findings, where regulations can stabilize prices at 15-20% lower. The conclusion of this study highlights the importance of Sharia principles in managing sustainable markets in developing countries, with policy recommendations to reform antitrust rules to align with the maqasid al-Shariah.

The rapid growth of Indonesia’s digital economy has created opportunities while simultaneously increasing the risk of monopolistic practices and unfair business competition. To address these issues, the Business Competition Supervisory Commission (KPPU) introduced behavioral remedies as an alternative dispute settlement mechanism. This study aims to analyze the effectiveness of behavioral remedies in cases of market control and abuse of dominant position. The research employs a doctrinal legal method. Effectiveness is assessed through two main indicators, namely the restoration of market conditions and the prevention of repeated violations. The findings show that this mechanism is generally effective in restoring competition and preventing recurrence, as demonstrated in several KPPU cases, including Case No. 04/KPPU-I/2024. However, its effectiveness remains conditional, as the mechanism is reactive, does not impose fines, and is monitored only for a relatively short period. Moreover, although KPPU Regulation No. 2 of 2023 regulates this mechanism, it does not provide sufficient legal explanation regarding the classification of articles that are permitted. Therefore, stronger monitoring and more detailed legal clarification are required to ensure the sustainable effectiveness of this mechanism in maintaining fair competition.

Monopoly is a form of market structure characterized by sole control over certain goods or services. In conventional economics, monopoly is often considered as part of market dynamics that can be tolerated under certain conditions, such as natural monopoly. However, from an Islamic microeconomic perspective, monopoly is viewed more critically because it has the potential to cause injustice in the distribution of wealth and market access. This article aims to analyze the concept of monopoly in Islamic economics and examine its implications for market justice. This study uses a descriptive qualitative approach based on literature studies, with sources from classical Islamic literature, the Qur'an, hadith, and contemporary economic theory. The results of the analysis show that Islam forbids monopolistic practices that are detrimental to society, especially in the form of ihtikar or hoarding, and encourages healthy competition and market supervision (hisbah). Thus, the principle of market justice in Islam is not only normative, but has a strong ethical and practical basis to prevent economic domination by a handful of parties.

Market monopoly is an economic phenomenon that can have an impact on business competition and public welfare. In Islam, monopoly has certain limitations in accordance with the principles of justice and social welfare. This study aims to analyze Ahmad bin Hanbal's thoughts on market monopoly and examine contemporary cases in Indonesia, namely the 2023 cooking oil monopoly. Using qualitative research methods based on literature studies, this article explores Ahmad bin Hanbal's views on market mechanisms in Islam and how its principles can be applied in the context of a modern economy. The results of the study show that Ahmad bin Hanbal rejects monopolistic practices that are detrimental to society and hinder healthy business competition. A study of the cases of non-subsidized cooking oil in Indonesia shows that the monopolistic practices that occur are contrary to the values of Islamic economic justice. Therefore, stricter regulations and policies oriented towards public welfare are solutions that need to be considered by stakeholders.

This paper discusses the equilibrium of the monopoly market within the framework of the theory of demand and supply, and how it impacts social welfare. In a monopoly market, there is one seller who controls the entire supply of a good and service, which allows the monopoly company to influence the price and quantity of goods produced. This study uses Qualitative Methods to analyze the interaction between demand and supply in a monopoly market, focusing on how higher pricing and limited production reduce consumer surplus and create market imbalances. In addition, this study also explores the negative impacts of the monopoly market on social welfare, where imbalances in the distribution of goods and services can lead to a decrease in the quality of life of the community. The results of the study show that although monopoly companies can achieve greater profits, consumers and society as a whole tend to be disadvantaged, with inefficient allocation of resources and unfair distribution.  

Usaha yang sedang diminati oleh banyak kalangan adalah Usaha Mikro Kecil Dan Menengah, mereka memilih ini dikarenakan modal yang tidak terlalu besar dan lokasi usaha yang mudah dibuat misalnya dengan cara sewa atau milik sendiri. Tetapi, sistem pencatatan yang ada di usaha mereka masih dilakukan dengan cara sederhana. Kegiatan pengabdian masyarakat ini berpusat pada pemilik UMKM koperasi yang ada di Pondok Pesantren Hidayatul Qur’an Batanghari, Lampung Timur. Tujuan dari kegiatan ini adalah untuk mengenalkan strategi dalam usaha yang diharapkan bisa untuk diaplikasikan dan membawa hasil yang baik untuk UMKM tersebut, serta untuk menerapkan sistem pencatatan akuntansi yang teratur guna pengelolaan keuangan yang lebih baik lagi.

The problem in this study is the low quality of learning Business Economics class X Office Automation and Governance, which is known from the average student learning outcomes in the subject of Business Economics only reaching 67.43, in other words it has not reached the specified KKM, which is equal to 78, this is due to the lack of use of media images with learning models in the teaching and learning process, lack of student interest, and low student learning outcomes in learning Business Economics. Therefore, this research discusses the use of media images with the Examples Non Examples learning model to improve student learning outcomes in class X Business Economics Automation and Office Management at SMK Negeri 8 Samarinda. This study uses the Classroom Action Research (PTK) method, the research procedure used is in the form of cycles and each cycle is carried out through four stages, namely: planning, implementing, observing, and reflecting. The data collection technique was carried out using qualitative techniques, while the data collection tool used was a question instrument. The subjects of this study were class X students of Office Automation and Governance at SMK Negeri 8 Samarinda with a total of 35 students. The results showed that the use of media images with the Examples Non Examples learning model can improve student learning outcomes in learning Business Economics. This can be seen from the completeness of student learning outcomes in the pre-cycle, namely 18 students (51.43%), there was an increase in cycle I, namely 27 students (77.14%) and in cycle II it increased to 35 students (100%). Based on the results of the study, it can be concluded that the use of media images with the Examples Non Examples learning model can improve student learning outcomes in the subject of Business Economics class X Office Automation and Management at SMK Negeri 8 Samarinda.