Purpose

This research is very important to conduct to review government policy on Indonesian contract law that still uses contract law inherited from Dutch product (BW) and review which regulations are to be adapted to current development of contract law. This research’s novelty is that new rules will be found in Indonesian contract law.

Design/methodology/approach

This research used normative and empirical methods. Normative research is dogmatic research or one that analyzes legislation using secondary data consisting of primary, secondary and tertiary legal materials. Besides the normative method, the research was also conducted using empirical method through direct interview and observation in some government agencies, such as the Directorate General of Legislation, Ministry of Law and Human Rights (HAM) and Chairman of Legal Product Formation Division, House of People’s Representatives of the Republic of Indonesia and the Civil Law Teaching Association (APHK).

Findings

This research found that new Indonesian contract law is very important to give legal certainty and justice to the people, and the contract law must regulate important matters related to the sources of contract besides agreement and law, related to termination, unjust enrichment, negotiation, good faith, public contract and private contract and related to legal act and validity of electronic contract.

Research limitations/implications

The novelty of this research is that new rules will be found in Indonesian contract law. This research is different from previous researches conducted by Sigit Irianto (2013) and Deviana Yuanitasari (2020), that discuss only on contract law development related only to the good faith principle.

Practical implications

Drafting contract law is a relatively heavy duty due to the factor of law pluralism that contains contract aspect in Indonesia such as customary law aspect, Islamic law aspect, regional aspect, international aspect and other aspects. In fact, meanwhile, there is rapid development in the community with regard to business transactions that are also followed with contract law development. Therefore, amendment is needed for the Indonesian contract law to adapt to the people’s need for law, and this change agenda is also addressed to updating the contract law.

Social implications

Civil law reform, especially contract law, is deemed very important for Indonesia, because based on field fact, people do their business contract by applying contract law that is not yet regulated in the contract law in KUHPerdata; thus, new contract law is needed that regulates important matters related to sources other than agreement and law.

Originality/value

It is very important to conduct this research to review government policy in Indonesian contract law that still uses the contract law inherited from Dutch product (BW) and review what regulations should have been adjusted to current development of contract law. The novelty of this research is that new rules will be found in Indonesian contract law. This research is different from previous researches conducted by Sigit Irianto (2013) and Deviana Yuanitasari (2020), that discuss only on contract law development related only to the good faith principle.

中文翻译：

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印度尼西亚合同法中的政府政策仍然使用继承自荷兰产品的合同法

目的

这项研究对于审查政府关于印度尼西亚合同法的政策非常重要，该政策仍然使用继承自荷兰产品（BW）的合同法，并审查哪些法规将适应当前合同法的发展。这项研究的新颖之处在于，印度尼西亚合同法中将出现新的规则。

设计/方法论/途径

本研究采用了规范方法和实证方法。规范性研究是一种教条性研究，或者是使用由一级、二级和三级法律材料组成的二级数据来分析立法的研究。除规范性方法外，本研究还采用实证方法，通过直接访谈和观察的方式对一些政府机构进行了研究，如法律和人权部立法总局、众议院法律产品形成处主席等。印度尼西亚共和国人民代表和民法教学协会（APHK）。

发现

本研究发现，新的印度尼西亚合同法对于赋予人民法律确定性和正义非常重要，合同法必须规范除协议和法律之外与合同来源相关的重要事项，包括终止、不当得利、谈判、善意等。诚信、公合同、私合同以及电子合同的法律行为和有效性。

研究局限性/影响

这项研究的新颖之处在于，印度尼西亚合同法中将出现新的规则。这项研究与Sigit Irianto (2013)和Deviana Yuanitasari (2020)之前进行的研究不同，后者仅讨论仅与诚实信用原则相关的合同法发展。

实际影响

由于印度尼西亚法律多元化的因素，合同法的起草工作相对繁重，其中包括合同方面的习惯法方面、伊斯兰法方面、区域方面、国际方面等方面。事实上，与此同时，商业交易领域也在迅速发展，随之而来的是合同法的发展。因此，印尼合同法需要进行修改，以适应人民对法律的需求，本次修改议程也是为了更新合同法。

社会影响

民法改革，特别是合同法，对于印度尼西亚来说非常重要，因为根据现场事实，人们通过适用合同法来签订商业合同，而KUHPerdata合同法中尚未规范；因此，需要制定新的合同法来规范与协议和法律以外的来源相关的重要事项。

原创性/价值

进行这项研究非常重要，以审查印度尼西亚合同法中的政府政策，该政策仍然使用继承自荷兰产品（BW）的合同法，并审查哪些法规应该根据合同法的当前发展进行调整。这项研究的新颖之处在于，印度尼西亚合同法中将出现新的规则。这项研究与Sigit Irianto (2013)和Deviana Yuanitasari (2020)之前进行的研究不同，后者仅讨论仅与诚实信用原则相关的合同法发展。