The purpose of this research is to examine the adequacy of laws and regulations governing investment implementation by the Savings and Credit Cooperative (KSP) and formulate legal constructs related to the determination of investment interest rates by KSP through the regulations of the Indonesian Deposit Insurance Corporation (IDIC/LPS) concerning the Determination of the Deposit Insurance Interest Rate in the form of IDIC Regulation (Surat Edaran). The research method uses a normative juridical approach, descriptive-analytical research specifications, the systematic interpretation and the legal construction of analogy. The results showed that the statutory regulations governing investments made by KSP were insufficient, especially in the section relating to the determination of investment interest rates. There were still many KSPs that set high interest in their investment programs. Law Number 11 of 2020 concerning Job Creation and Government Regulation Number 7 of 2021 concerning Ease, Protection, and Empowerment of Cooperatives and Micro, Small and Medium Enterprises also does not accommodate provisions regarding investment programs that KSP can carry out. It is feared that several new provisions in the two regulations will lead to high-interest investment practices by KSP that prioritize the interests of their institutions over the welfare of members. Through the analysis of legal construction, it was found that the IDIC Regulation (Surat Edaran) regarding the Determination of the Deposit Insurance Interest Rate at Commercial Banks and Rural Banks can be used as a reference by the Ministry of Cooperatives and SMEs to encourage KSP to set investment interest rates fairly. Tujuan penelitian ini adalah untuk mengkaji kecukupan peraturan perundang-undangan yang mengatur tentang penyelenggaraan investasi oleh Koperasi Simpan Pinjam (KSP) dan merumuskan konstruksi hukum terkait penetapan suku bunga investasi oleh KSP melalui peraturan Lembaga Penjamin Simpanan (LPS) tentang Penetapan Tingkat Bunga Penjaminan Simpanan dalam bentuk Surat Edaran LSP. Metode penelitian menggunakan pendekatan yuridis normatif, spesifikasi penelitian deskriptif analitis dan metode analisis data yang digunakan adalah penafsiran sistematis dan konstruksi hukum analogi. Hasil penelitian menunjukkan bahwa peraturan perundang-undangan yang mengatur mengenai investasi yang dilakukan KSP tidak cukup memadai khususnya pada bagian yang berkaitan dengan penetapan suku bunga investasi sehingga masih banyak KSP yang menetapkan bunga tinggi dalam program investasinya. Undang-Undang Nomor 11 Tahun 2020 tentang Cipta Kerja dan Peraturan Pemerintah Nomor 7 Tahun 2021 tentang Kemudahan, Perlindungan dan Pemberdayaan Koperasi dan Usaha Mikro Kecil dan Menengah, juga tidak mengakomodasi ketentuan tentang program investasi yang dapat dilakukan KSP. Beberapa ketentuan baru dalam kedua peraturan tersebut dikhawatirkan memunculkan banyak praktik investasi berbunga tinggi oleh KSP yang lebih mengutamakan kepentingan lembaganya dibandingkan kesejahteraan anggota. Melalui analisis konstruksi hukum, ditemukan bahwa Surat Edaran Lembaga Penjamin Simpanan (LPS) tentang Penetapan Tingkat Bunga Penjaminan Simpanan pada Bank Umum dan Bank Perkreditan Rakyat dapat dijadikan rujukan oleh Kementerian Koperasi dan UKM untuk mendorong KSP dalam  menetapkan suku bunga investasi secara wajar

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Political law, political economy and political economy law are three concepts that arise from a deep understanding of the 1945 Constitution as statutory norms. A series that tries to align the interests and desires of the 1945 Constitution with the interests of the state and the people's wishes, which often have different views and practices between the two. This article aims to analyze the direction of Indonesian economic law politics policy in the Welfare State conception based on the 1945 Constitution. The method used is a normative juridical approach with descriptive-analytical techniques using qualitative juridical data analysis methods. This article concludes that the direction of Indonesian economic policy shows some adoption of neoliberalism values that have become references in the formulation of monetary policy in Indonesia. As a government law politics, the direction of economic policy must be oriented towards the institutionalization of the status of the Indonesian nation to advance the general welfare. And the "vehicle" for institutionalizing this staatsidee, as formulated in Article 33 of the 1945 Constitution of the Republic of Indonesia, is the concept of a welfare state.

The four amendments to the 1945 Constitution are imperatives of an imperfect human work. For Indonesia, the 1945 Constitution is the highest law (basic law) of all existing state norms and institutions. However, after careful scrutiny, it turns out that there are a number of provisions that weaken the constitutionality of the 1945 Constitution. The purpose of this article is to analyze the constitutionality of the 1945 Constitution after the fourth amendment. The method used is descriptive method and the method of constitutional comparison, with a qualitative juridical analysis approach to state administration. The conclusion of this article is that there are provisions that weaken the 1945 Constitution such as the 42 state affairs, government and state administration that submit further arrangements to the law. In addition, and especially if it is associated with the authority to change and develop itself, it becomes very dependent on the DPR. For this reason it is important to do constitutionality by making changes to the fifth and so on, beginning with compiling a grand design change that emphasizes legal and constitutional aspects rather than political aspects.