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Operations Research: International Conference Series
Published by Indonesian Operations Research Association
ISSN : 27231739     EISSN : 27220974     DOI : https://doi.org/10.47194/orics
Core Subject : Economy, Science, Education, Engineering,
Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Mathematics
Operations Research: International Conference Series (ORICS) is published 4 times a year and is the flagship journal of the Indonesian Operational Research Association (IORA). It is the aim of ORICS to present papers which cover the theory, practice, history or methodology of OR. However, since OR is primarily an applied science, it is a major objective of the journal to attract and publish accounts of good, practical case studies. Consequently, papers illustrating applications of OR to real problems are especially welcome. In real applications of OR: forecasting, inventory, investment, location, logistics, maintenance, marketing, packing, purchasing, production, project management, reliability and scheduling. In a wide variety of environments: community OR, education, energy, finance, government, health services, manufacturing industries, mining, sports, and transportation. In technical approaches: decision support systems, expert systems, heuristics, networks, mathematical programming, multicriteria decision methods, problems structuring methods, queues, and simulation.
Arjuna Subject : Umum - Umum
Articles 5 Documents
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Search results for , issue "Vol. 1 No. 3 (2020): Operations Research International Conference Series (ORICS), September 2020" : 5 Documents clear
Estimating Value-at-Risk in TLKM Shares using the ARIMA-GARCH Model Simanjuntak, Alberto
Operations Research: International Conference Series Vol. 1 No. 3 (2020): Operations Research International Conference Series (ORICS), September 2020
Publisher : Indonesian Operations Research Association (IORA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/orics.v1i3.145

Abstract

Stocks are one of the best-known forms of investment and are still used today. In stock investment, it is necessary to know the movement and risk of loss that may be obtained from the stock investment, so that investors can consider the possible losses. One way to calculate risk is to use Value-at-Risk (VaR). Since the stock movement is in the form of a time series, a model can be formed to predict the movement of the stock, which can then be used for VaR calculations using time series analysis. The purpose of the study was to determine the Value-at-Risk of Telekomunikasi Indonesia Persero Tbk.’s (TLKM) shares using time series analysis. The data used for this research is the daily closing price of shares for three years. At the time series analysis stage, the models used in predicting stock movements are Autoregressive Integrated Moving Average (ARIMA) for the mean model and Generalized Autoregressive Conditional Heteroscedasticity (GARCH) for the volatility model. The average and variance values obtained from the model are then used in calculating the VaR of TLKM shares. Based on the results of the study, it was found that the TLKM stock has a VaR of 0.022876. In other words, if an investment of IDR 1,000,000.00 is made for TLKM shares for 37 days (5% of 751 days), the investment period with a 95% confidence level, the maximum loss that may be borne by the investor is IDR 22.876.00.
Analysis of Burnok's Financial Statements Muhajirin, Anang
Operations Research: International Conference Series Vol. 1 No. 3 (2020): Operations Research International Conference Series (ORICS), September 2020
Publisher : Indonesian Operations Research Association (IORA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/orics.v1i3.146

Abstract

Over time, the city of Tasikmalaya became one of the cities with a high level of trade competition. Most of the economic actors in the city of Tasikmalaya are Micro, Small and Medium Enterprises (MSMEs). To increase sales results and manage sales assets, a record is needed to regulate the company's financial condition. The purpose of this financial report is to regulate the financial condition of an MSME in order to maintain and increase sales assets. The steps that can be taken are by making an income statement by recording the expenses and income of each tool and material used. This income statement can help ease users in managing company finances by comparing profit or loss income at certain times with other times. From this comparison, a percentage is obtained that shows the company's profit or loss at the time of comparison. The benefit of the financial statements made is that the user can know the financial flow and maintain financial stability that will be used as long as the company operates.
Ordinary Credit Units, Benefit with Salary Scale, and Projecting Credit Units Susanto, Sunarta
Operations Research: International Conference Series Vol. 1 No. 3 (2020): Operations Research International Conference Series (ORICS), September 2020
Publisher : Indonesian Operations Research Association (IORA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/orics.v1i3.147

Abstract

In determining the benefits of a pension fund, proper calculations are needed so as not to provide a pension that is too small or too large for someone. The importance of discussing the problems in pension funds is to understand the various problems that exist in determining pension funds. The purpose of making the solution to the selected questions is because the author feels that a discussion about these questions is needed. The problems that exist are sought to be solved using the Traditional Unit Credit (TUC) method and the Projected Unit Credit (PUC) method. The result obtained from the problem under discussion is that if only changes in the age part are entered, it means that it is only necessary to multiply the previously obtained normal cost by the difference from the age in the specified year with the entered age. For those who survive, the normal fee is IDR 33,125, if there are 92 participants who are still alive, the normal fee is IDR. 3,047,490, if there are 96 participants who are still alive, the normal fee is IDR 3,180,000, and if all participants are still alive, the normal fee is IDR 3,312,510. It is hoped that the discussion of the selected questions will help readers understand how to solve problems in determining pension funds.
Annual Financial Statement of PT Essar Indonesia Employee Saves and Loan Cooperative for Financial Year 2021 Balances 31 December 2021 Hafifah, Aliyah Nur
Operations Research: International Conference Series Vol. 1 No. 3 (2020): Operations Research International Conference Series (ORICS), September 2020
Publisher : Indonesian Operations Research Association (IORA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/orics.v1i3.143

Abstract

Cooperatives according to Law No. 25 of 1992, can be interpreted as a business entity consisting of a group of people whose activities are based on cooperative principles as well as a people's economic movement based on kinship. The cooperative itself also has financial reports that are always reported. Cooperatives have financial reports that are reported within a certain period of time with the users of the report themselves being members of the cooperative, management, supervisors and other stakeholders. A balance sheet is a financial report that must be made to report the assets or liabilities of a company/organization. With this balance sheet, a company or organization can find out how much wealth or total net assets it has. The preparation of the financial balance report has 3 stages, the preparation stage, the stage for preparing the balance sheet and the preparation stage. In the stage of preparing the balance sheet, there are 2 stages, namely the stage of preparing the balance sheet page and the stage of registering asset data owned by a company or organization itself. Based on the total data, the wealth data owned by the Savings and Loans Cooperative PT. Essar Indonesia is the same as the total liability data of the Savings and Loans Cooperative PT. Essar Indonesia until the end of 2021. With the cooperative's financial report, users can view information about their financial position, performance and other financial information. The existence of a balance sheet report is also useful in making decisions.
Calculation of Pension Funds Using the Unit Credit Method Anugerah Putri, Sherina
Operations Research: International Conference Series Vol. 1 No. 3 (2020): Operations Research International Conference Series (ORICS), September 2020
Publisher : Indonesian Operations Research Association (IORA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/orics.v1i3.144

Abstract

Everyone certainly wants a welfare in the future, including employees. The company provides a pension program as a form of the company's concern for its employees. This pension fund provides pension benefits to employees at the time of retirement. Funding for this pension requires actuarial calculations which are normal costs and actuarial obligations. This discussion aims to calculate the amount of normal costs and actuarial obligations that must be incurred. The method used in this discussion is the ordinary credit unit method and projecting credit units by analyzing the use of actuarial formulas from several literature studies. In the first discussion using the ordinary credit unit method, the total actuarial liability on 1/1/95 is IDR. 405,355, while in the second discussion using the projecting credit unit method, the normal cost for 1994 on 1/1/94 is IDR 1071, 42. It is hoped that this discussion can increase the reader's knowledge of pension fund mathematics, especially to determine normal costs and also the value of actuarial obligations using the ordinary credit unit method or the projecting credit unit method.

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