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Exploring Investment Decision-Making with CAPM: Case Studies on Ten Raw Materials Companies Listed in Stock Exchange Haq, Fadiah Hasna Nadiatul; Sukono, Sukono
Operations Research: International Conference Series Vol. 5 No. 1 (2024): Operations Research International Conference Series (ORICS), March 2024
Publisher : Indonesian Operations Research Association (IORA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/orics.v5i1.294

Abstract

The investment business in Indonesia experienced significant growth in line with the increasing stock trading activity in the capital market. The large number of capital markets in Indonesia means investors have to be careful in determining the shares to be chosen. Based on transaction value, the raw materials sector is the second largest sector that supports the Indonesian capital market. Given the large number of issuers in the raw materials sector, determining investment portfolios is important to obtain optimal results. CAPM can classify stocks as efficient or not based on their expected return value. The results obtained can be used as a consideration in portfolio decision-making. This research identifies 10 stocks in the raw materials sector listed on the IDX. Of the 10 stocks studied, 8 are included in the efficient category, which has a greater return than expected, and 2 are included in the inefficient category. This means that investors who want to invest in raw materials can make a decision to buy these 8 stocks, and it is not recommended to buy shares in 2 inefficient category stocks or sell 2 stocks.
Implementing the Variance-Covariance Method for Assessing Market Transaction Risks in Raw Material Sector Stocks Kisti, Vuji Annisa; Haq, Fadiah Hasna Nadiatul; Hidayana, Rizki Apriva
Operations Research: International Conference Series Vol. 5 No. 2 (2024): Operations Research International Conference Series (ORICS), June 2024
Publisher : Indonesian Operations Research Association (IORA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/orics.v5i2.310

Abstract

The capital market plays a crucial role in supporting a country's economic growth. Besides being a funding source, the capital market also serves as an investment avenue for investors, particularly through stocks. Every investor must be willing to bear risks in line with their targeted returns. Risk is defined as the uncertainty of future outcomes due to market condition changes, and VaR (Value at Risk) is used to determine the tolerated loss at a certain confidence level. This study discusses the application of the Value at Risk (VaR) method using the Variance-Covariance approach to mitigate market risks in the portfolio of raw material sector stocks. The study focuses on two raw material sector stocks in Indonesia, assuming a normal distribution of asset price changes. The measurement results indicate that with an investment of Rp. 100,000,000.00, a 95% confidence level, and a 1-day period, the VaR of the portfolio of these five stocks is Rp. 2,769,750.00. This research provides critical insights to assist investors in understanding and managing portfolio risks, making VaR a key indicator to measure potential future risks and laying the foundation for decision-making in risk management.
Application of the Leslie Matrix on Female Birth Rates and Life Expectancy in the Special Region of Yogyakarta Lianingsih, Nestia; Haq, Fadiah Hasna Nadiatul; Audina, Yurid
International Journal of Quantitative Research and Modeling Vol 5, No 3 (2024)
Publisher : Research Collaboration Community (RCC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46336/ijqrm.v5i3.761

Abstract

This study aims to predict the number and growth rate of the female population in the Special Region of Yogyakarta for 2025, using the Leslie Matrix model. The matrix utilizes fertility rates and female life expectancy across different age intervals. The data used includes the female population from 2015 and 2020, alongside Age-Specific Fertility Rate (ASFR) data for the same period. By applying the dominant eigenvalue of the Leslie matrix, the study finds that the growth rate of the female population in Yogyakarta is projected to increase, with a dominant eigenvalue of 1.252. The female population is predicted to reach 2,409,852 by 2025, an increase from 1,983,800 in 2020. These findings are expected to inform population management and development planning in Yogyakarta.
Analysis of Public Policy and Criminal Law in The Perspective of Consumer Protection for Online Loan Users in Indonesia Kalfin; Vimelia, Willen; Haq, Fadiah Hasna Nadiatul
International Journal of Humanities, Law, and Politics Vol. 2 No. 2 (2024): International Journal of Humanities, Law, and Politics
Publisher : Communication in Research and Publications (CRP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46336/ijhlp.v2i2.86

Abstract

The development of online loan services or pinjol in Indonesia raises new problems in consumer protection. Many cases of fraud and misuse of customer personal data are very concerning. The government has not had specific regulations regarding online loans. The existing regulations are merely appeals and suggestions for fintech pinjol to conduct business responsibly. In fact, stricter regulatory and enforcement steps are needed to address the increasing violations that harm consumers. This study aims to analyze public policies and criminal law in the perspective of protecting pinjol consumers in Indonesia. This research uses a normative legal approach with statute and conceptual approaches. The results are expected to provide recommendations for more effective legal protection for online lending consumers in Indonesia, as well as enriching academic literature on fintech and digital consumer protection. The conclusion is that firmer public policy and criminal law provisions are needed to protect consumer rights in using online loan services which currently have weak legal protection.
Challenges and Responsibilities of Freedom of Expression in the Industrial Era 4.0: Analysis of Social Interaction on Instagram Social Media Suhaimi, Nurnisaa Binti Abdullah; Haq, Fadiah Hasna Nadiatul; Sidiq, Fahmi
International Journal of Linguistics, Communication, and Broadcasting Vol. 2 No. 2 (2024): International Journal of Linguistics, Communication, and Broadcasting
Publisher : Communication In Research And Publications

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46336/ijlcb.v2i2.116

Abstract

The industrial era 4.0 has brought significant changes in people's lives, with the rapid development of technology and information, as well as the important role of social media such as Instagram in digitalization changes. Freedom of expression on these platforms is becoming increasingly important, but also increasingly complex. Freedom of expression is a basic right of every individual which is included in Human Rights (HAM). However, this concept is not absolute and is always accompanied by certain responsibilities and obligations. Laws and statutory regulations stipulate that freedom of expression must be exercised by complying with ethical norms, laws, and other individual rights and freedoms. Freedom of expression also plays an important role in the world of the internet and social media. The internet has become a platform that allows individuals to express themselves without physical limitations, with almost limitless potential. Social media such as Instagram allows users to share creative content, in the form of photos, videos and text. However, users must use this freedom wisely and responsibly. They have complete control over their uploads, with a privacy settings feature that allows them to control who can access their content. Social media should not regulate individual ethics and behavior, but rather give individuals the right and obligation to use the platform wisely. Thus, freedom of expression on social media such as Instagram requires awareness of individual responsibility in carrying it out. By obeying the rules, norms and rights of other people, this freedom can be exercised well without harming anyone and still strengthening the social norms that apply in society.