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All Journal COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat
Dedek Kustiawati
FITK UIN Syarif Hidayatullah Jakarta, Indonesia
Humanities Economics, Econometrics & Finance Education Industrial & Manufacturing Engineering Social Sciences

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Analisa Pengoptimalan Keuntungan pada Pabrik Tempe Menggunakan Metode Grafik Celsania Rustiandini; Siska Rahmawati Sukma; Tya Nurhaliza; Nazliyah Qur’ani; Dedek Kustiawati
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 2 No. 8 (2022): COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v2i8.479

Abstract

Mathematics is a science that plays an important role in various fields, including science and technology. Therefore, as the times progress, the economic problems that exist in everyday life become increasingly complex. By studying mathematics, these problems can be solved using linear programming. Linear programming is a way of solving optimization problems (maximizing or minimizing) by modeling them in the form of objective functions and constraint functions. Existing economic problems can be solved by several methods including graphical methods, elimination and substitution methods, mixed methods and simplex methods. In doing business, the thing that must be considered is the production process. This aims to maximize profits to be optimal. In this study the production process is an important thing that can affect a profit. The purpose of this research is to optimize the amount of tempeh production in order to obtain maximum profit. Graphical method is the method used in solving this problem. This research uses a literature study, which is carried out by collecting data from various sources such as books, journals, articles and other scientific works. The technique used to collect data in this study is by collecting data sources from various media, reading them and then starting to manage the data obtained from these sources.
Analisis Perbedaan Penggunaan Metode Anuitas dan Proporsional Murabahah pada Bank Syariah Alya Sugiarti; Tengku Syafira Varizka Fery; Yasmin Aulia; Dedek Kustiawati
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 2 No. 8 (2022): COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v2i8.480

Abstract

This study aims to analyze the differences in the use of proportional annuity and murabaha methods in Islamic banks. This study uses a qualitative approach by describing and describe the data through the opinions of several experts, experiences, and theories related to differences in the use of annuity and proportional murabaha methods in Islamic banks. Based on the method used, it is concluded that the annuity method and the proportional method are methods that are commonly applied in Islamic financial institutions and provide benefits (mashlahah) for the growth of Islamic banks. The purpose of using the annuity and proportional method is to implement Islamic bank financial reporting in a good, accurate, measurable, and in accordance with sharia principles through sharia accounting. The difference between the annuity method and the proportional method lies in the income and expenditure of murabaha financing, the difference between the effective value and the value of the murabaha contract/contract is amortized over the term of the contract using a variety of different methods, and margin income on murabaha contracts.
Analisa Penerapan Integral pada Fungsi Konsumsi dalam Perekonomian di Indonesia Zahra Kamila Dinhaq Lubis; Dedek Kustiawati; Harlina Harlina; Cica Aulia Putari; Salma Renjani Ratu Utami
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 2 No. 8 (2022): COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v2i8.481

Abstract

In this study, the author took the title " Analysis of Integral Application of the Consumption Function in the Indonesian Economy". Economics is a science that discusses how a group of people or individuals make choices. An economic science that is often related to everyday life is consumption. One of the important components for assessing the development of the level of economic well-being of the population is the pattern of people's consumption expenditure. In Indonesia, consumption also has a very dominant role in the economy where the contribution of consumption to the Indonesian economy is very large and dominant, which is between 57.7% and 73.9% of Gross Domestic Product (GDP). Keynes' theory of consumption explains the relationship between current income (disposable income) and current consumption. This research is prepared based on the method of literature or literature study through reference books related to the preparation of the research discussed, as well as scientific articles such as journals or conference proceedings related to research problems and objectives. The consumption function in the integral is integral to its marginal consumption and conversely consumption is the first derivative of the consumption function with its integral form. In this case, the integral of the consumption function can be used as a calculation to find out the cost of consumption if there is a marginal desire as well as its income.
Analisis Penerapan Deret Ukur dalam Perhitungan Laju Pertumbuhan Penduduk Terhadap Tingkat Kemiskinan Syahnaz Salsabila; Ade Sri Agustin; Shinta Kirana Wijayanti; Dedek Kustiawati
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 2 No. 8 (2022): COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v2i8.484

Abstract

This study aims to analyze the application of a series of measures in calculating the rate of population growth to the poverty rate. The measuring series in the economy is a model of population growth. Population growth is a change in the number of inhabitants in a population that occurs over a certain period. Judging from data from BPS (Central Statistics Agency) regarding the population growth rate in 2015-2022, there are similar differences. BPS also stated that Indonesia's population growth rate in 2020-2025 was 0.9%. In research conducted using the literature study method which is one type of qualitative research which uses references derived from books, scientific articles such as journals, proceedings that are in accordance with the topic to be discussed. The purpose of applying the measuring series in the calculation of the population growth rate to the poverty rate is to predict the number of inhabitants in 2023-2025 and its effect on the poverty rate. An increasing population will result in a large gap between the population, low quality and ability of the population, causing an increase in the level of poverty.
Penerapan Limit Fungsi untuk Mencari Keuntungan Maksimum Ditinjau dari Biaya Marginal Sinta Fitriyani; Nanda Anugrah; Dedek Kustiawati; Wulan Mutiara Cahyani
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 2 No. 8 (2022): COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v2i8.485

Abstract

Marginal costs are changes in total costs in the form of increases or decreases in total costs due to changes in the quality of goods or services. Through the types of production costs used as processing costs, it will be seen to what extent the use of capital will be used and profits will be obtained. This analysis will help to what extent a company can determine the planning for the business that is built, whether to get maximum or minimum profits. This study uses literature study, which is research in which data sources and data collection are obtained by taking library data, reading, recording and processing the data as research material. Based on an analysis of literature data regarding "Maximum Profits from Fishermen Business in East Balikpapan District" the results obtained are the maximum profit in terms of marginal costs, namely the maximum profit for the total catch of fishermen and occurs at a maximum catch rate (Q) of 159.92. So it was concluded that the fishing business in East Balikpapan District had not yet achieved maximum profit, because the fishermen's catch exceeded the maximum catch level requested.
Maksimalisasi Keuntungan pada Bisnis “Naya Online Shopping” dengan Metode Simpleks Diva Nadhofah Sadarisma; A. Rama El Shinta; Zulfa Nabila Kulsum; Dedek Kustiawati
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 2 No. 8 (2022): COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v2i8.488

Abstract

Linear programming is one of the most widely used operations research techniques in practice and is known for being easy to understand. The method for completing the linear program in the "Naya Online Shopping" method is the graphical method simplex. The purpose of completing this linear program is to optimize the amount of production in obtaining maximum profit. And the optimal solution is obtained, namely the maximum profit of IDR 1,750,000, with the number of ting-ting bags to be purchased from agents as many as 50 and the number of crown wallets to be purchased from agents as many as 100. From a maximum storage capacity of 150 pieces, it can be maximized by purchasing 50 bags and purchasing 100 wallets. Completion of the linear program with the graphical method of operations research and the simplex method get the same result.
Pembahasan Soal-Soal Program Linear dengan Menggunakan Metode Campuran Irfi Windari; Sabila Yusma Al Wahida; Maya Hania Salsabila; Dedek Kustiawati
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 2 No. 8 (2022): COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v2i8.470

Abstract

The problem of linear programming is a linear problem to determine the magnitude of the value of each variable so that the value of the objective function or objective can be optimum, namely by maximizing or minimizing. To solve linear programming problems, a mixed method can be used, namely a method that combines two methods at once, namely the elimination method and the substitution method. The elimination method is a method that eliminates variables by adding or subtracting two equations that have the same coefficient. While the substitution method is the replacement of a variable with a variable from another equation.
Upaya Pemulihan Pendapatan Nasional Sektor Pariwisata Melalui Kebijakan Fiskal di Indonesia Pasca Pandemi Aisyah Alifiah Dinhaq Lubis; Dedek Kustiawati; Reka Fadlia Elvantio; Sri Sundari
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 2 No. 8 (2022): COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v2i8.491

Abstract

The tourism sector is a contributor to state revenue in the form of foreign exchange and plays a role in increasing productivity and reducing unemployment. The existence of COVID-19 has greatly affected the balance of national income, which has decreased. The sectors most affected are transportation, travel, warehouses and the accommodation and food provision sector. Then the other sector is the tourism sector in Indonesia, about 11.83% of Indonesian workers are in the tourism industry sector. The purpose of this study is to review the impact of Covid -19 which has resulted in the decline of the tourism industry sector in Indonesia and also to respond to Government policies to handle the impact The existence of health quarantine policies, social distancing and Large-Scale Social Restrictions (PSBB) greatly affects the activities of the tourism and manufacturing sectors which causes economic growth to slow down so that national income declines. Tourism is one of the sectors most affected by the Covid-19 pandemic. The tourism sector is the mainstay sector of the national economy that has the potential to encourage economic growth in Indonesia. This is indicated by the increase in the development of foreign tourist arrivals, foreign exchange receipts from the tourism sector, and the contribution of the tourism sector to national GDP. Reduced labor force, unemployment and poverty will increase will cause state revenues in the form of income tax (PPh) to decrease, therefore there needs to be a strategy for economic recovery in the tourism sector, namely fiscal policy. Fiscal policy is one of the economic policies launched by a country to manage and direct the economy to a more conducive condition. The way that this economic policy is highlighted is by changing or updating the management of state revenues and expenditures. This study uses a qualitative descriptive method and the data for this research is based on library research in the form of books, literature, journals, articles about the tourism industry, and how to recover in the post-pandemic, namely fiscal policy. Data obtained through the Central Statistics Agency regarding the development of tourism before and after the pandemic.
Implementasi Barisan dan Deret dalam Ilmu Ekonomi Dyah Permata Hayuningtyas; Febita Miranda Witri; Risna Fradila Octaviani; Dedek Kustiawati
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 2 No. 8 (2022): COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v2i8.495

Abstract

This study discusses the implementation of sequences and series in economics. The research method used in this study is a qualitative method. The data collection technique used in this study was a literature study. A sequence is an arrangement of numbers formed according to a certain order. Sequences and series consist of two parts each, namely arithmetic sequences and geometric sequences as well as arithmetic series and geometric series. In economics the concepts of arithmetic lines and series are used for matters relating to calculations such as the calculation of capital, interest rates, installments, and the number of interest periods on a single interest basis. In economics the concept of geometric lines and series is usually used in calculating the final capital, interest rates, and the number of loan periods on a compound interest basis. The concepts of sequences and series are also related to Malthus' theory of population growth.
Dampak Kenaikan Harga Bahan Bakar Minyak (BBM) Terhadap Pasar Modal Setelah Pandemi Covid-19 Anis Widiyanti Futri; Cahya Juliana; Angga Abdul Rojak; Dedek Kustiawati
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 2 No. 8 (2022): COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v2i8.497

Abstract

The increase in fuel prices is nothing new for the people of Indonesia. Fuel continues to increase from year to year which is quite significant in the state budget on the state expenditure side. Fuel has become the main need that is needed by the people of Indonesia to fulfill their daily needs. The increase in fuel prices is certain to trigger prices of basic commodities resulting in an inflation rate that triggers the capital market. Inflation has both good and bad effects on the economy. Inflation monitored in Indonesia in recent months shows that covid-19 has an impact on the country's economy, especially in the trade sector consisting of exports, imports, raw resources and capital goods. This study aims to determine the impact of rising fuel oil (BBM) prices on the capital market after the covid-19 pandemic. The data collection technique used in this research is literature study technique.
Co-Authors A. Rama El Shinta Ade Sri Agustin Aisyah Alifiah Dinhaq Lubis Alya Sugiarti Angga Abdul Rojak Anis Widiyanti Futri Anisatul Islami Aulia Kartika Syari Cahya Juliana Celsania Rustiandini Cica Aulia Putari Diva Nadhofah Sadarisma Dyah Permata Hayuningtyas Febita Miranda Witri Harlina Harlina Irfi Windari Maya Hania Salsabila Nanda Anugrah Nazliyah Qur’ani Reka Fadlia Elvantio Risna Fradila Octaviani Sabila Yusma Al Wahida Salma Renjani Ratu Utami Salwa Aisyah Salsabila Shinta Kirana Wijayanti Sinta Fitriyani Siska Rahmawati Sukma Sri Sundari Syahnaz Salsabila Tengku Syafira Varizka Fery Tya Nurhaliza Wulan Mutiara Cahyani Yasmin Aulia Zahra Kamila Dinhaq Lubis Zulfa Nabila Kulsum