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All Journal Asia-Pacific Management and Business Application International Research Journal of Business Studies (E-Journal) Al Qalam: Jurnal Ilmiah Keagamaan dan Kemasyarakatan International Journal of Economics Development Research (IJEDR) Journal of Environmental Science and Sustainable Development Emerging Markets : Business and Management Studies Journal Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences The South East Asian Journal of Management Eduvest - Journal of Universal Studies EcoProfit : Sustainable and Environtment Business Journal of Economic, Business & Accounting Research Interaction, Community Engagement, and Social Environment Jurnal Penelitian Pendidikan Indonesia International Research Journal of Business Studies Journal of Entrepreneurial Economics Kemakmuran Hijau: Jurnal Ekonomi Pembangunan Jurnal Inovasi Pangan dan Gizi Sustainable Urban Development and Environmental Impact Journal Journal of Economic Resilience and Sustainable Development
Ratih Dyah Kusumastuti
Department Of Management, Faculty Of Economics And Business, Universitas Indonesia
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Environmental Science Health Professions Languange, Linguistic, Communication & Media Neuroscience Public Health Social Sciences Other

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The Effect of Labor Flexibility on Firm Performance in Indonesian Telecommunication Industry Natasaputra, Nugraha; Kusumastuti, Ratih Dyah
INTERNATIONAL RESEARCH JOURNAL OF BUSINESS STUDIES Vol 7, No 2 (2014): August-November 2014
Publisher : Universitas Prasetiya Mulya

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Abstract

A Decision-Making Model for Community-Based Food Industry to Support Poverty Alleviation in East Indonesia: Case Study of East Sumba Regency Ratih Dyah Kusumastuti; Fanny Martdianty; Rifelly Dewi Astuti; Nurmala Nurmala
APMBA (Asia Pacific Management and Business Application) Vol 5, No 1 (2016)
Publisher : Department of Management, Faculty of Economics and Business, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (986.912 KB) | DOI: 10.21776/ub.apmba.2016.005.01.1

Abstract

Provinces in the eastern part of Indonesia still have high percentage of residents living below the poverty line. However, some provinces are the producers of food commodities. The One Village One Product (OVOP) movement has been proven to be able to reduce the poverty level and can be implemented in East Indonesia, especially by developing the community-based food industry. The objective of the research is to develop a decision making model to determine the best suitable community-based food industry to be developed optimally in East Indonesia using Analytic Hierarchy Process (AHP). We identify five criteria for the model from the literature and interviews with experts, namely resources, demand, supporting industries, strategy and competitiveness, and supports from government and other parties. We apply the model for the case of East Sumba regency of the East Nusa Tenggara (NTT) province, to select from alternatives, namely cassava, banana, corn and peanut-based food industries. The results show that banana-based industry is chosen as the best-suitable community-based food industry, mainly due to the uniqueness of the banana-based product and high production of banana in the area.
The Effect of Labor Flexibility on Firm Performance in Indonesian Telecommunication Industry Nugraha Natasaputra; Ratih Dyah Kusumastuti
INTERNATIONAL RESEARCH JOURNAL OF BUSINESS STUDIES Vol 7, No 2 (2014): August-November 2014
Publisher : Universitas Prasetiya Mulya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21632/irjbs.7.2.1127

Abstract

Lean Operations Implementation at An Indonesian Shoe Producer Antonio, Bonny Tofani; Kusumastuti, Ratih Dyah
The South East Asian Journal of Management Vol. 13, No. 1
Publisher : UI Scholars Hub

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Abstract

Research Aims: We analyse the impact of lean operations implementation on the performance of an Indonesian shoe producer, identify key success factors of the implementation and propose further improvements to increase company performance Design/Methodology/Approach: A mix of quantitative and qualitative methods is employed. Comparisons of operational and financial performance before and after implementation are conducted to analyse the program's impact. In-depth interviews with six representatives from the shoe producer and its vendor are conducted to rank the key success factors and gain insights into their lean operations implementation. Research Findings: The shoe producer experienced a significant increase in performance after implementing lean operations, and the five most important success factors of the implementation were management commitment and involvement, teamwork, communication, cultural-change management and sustainability of improvement activities. The current performance can still be improved by utilising information technology, implementing a Kanban system, providing direct delivery of raw materials and reducing lead times. Theoretical Contribution/Originality: The paper provides new insights into the challenges faced by the Indonesian shoe producer, especially in its operations and highlights five critical success factors of lean operations implementation. Managerial Implications in the Southeast Asian Context: Results of the present study can be used by other companies in a similar industry in the region to improve their operations and financial performance. Research Limitations and Implications: The impact of implementing lean operations with the proposed improvements to the company's costs and revenues has not been studied in detail.
Determining Criteria for Supplier Selection in the Indonesian Oil and Gas Industry Habibah, Nur; Kusumastuti, Ratih Dyah
The South East Asian Journal of Management Vol. 14, No. 2
Publisher : UI Scholars Hub

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Research Aims - This research aims to identify the main criteria of supplier selection in the oil and gas industry in Indonesia and their causal relationships by using the DEMATEL method. Methodology - Based on the literature review and discussions with experts, ten supplier selection criteria were identified and used as the basis of questionnaire development. The questionnaire was distributed to 57 respondents representing supply chain management and other divisions in eight oil and gas companies in Indonesia, with 51 valid responses. The data was analyzed using the DEMATEL method. Research Findings - The results show that product price is the most important criterion, while technical ability was the least important criterion. Moreover, six criteria (product quality, product price, technical ability, service, production capability, and financial situation) were identified as the cause criteria and require more attention compared to the other four effect criteria (delivery performance, stable delivery of goods, lead time, and reaction to demand change in time). Theoretical Contribution/Originality - The research provides insights on the important criteria of supplier selection in oil and gas companies in Indonesia and their causal relationships. Managerial Implications in the Southeast Asian Context - The results can be used by oil and gas companies to better select their suppliers. Research Limitations and Implications - This study uses a non-stratified sample from eight oil and gas companies in Indonesia, which may not accurately represent the Indonesian oil and gas industry.
A Comparative Study of Demand Forecasting for Aftermarket Parts in Heavy Equipment Industry (PT XYZ Case Study) Mahmudi; Ratih Dyah Kusumastuti; Yosman Bustaman
Emerging Markets : Business and Management Studies Journal Vol. 9 No. 2 (2022)
Publisher : Directorate of Academic Research and Community Services

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33555/embm.v9i2.197

Abstract

The global economic crisis has reached the world today, forcing many customers to become more cost aware in their search for better quality and service, and forcing corporate organizations to discover more effective and efficient ways to compete among them. The main objective of this research is to choose the best forecasting method to predict the demandfor spare parts at PT. XYZ highly fluctuating, and to avoid or minimize stockouts. The demand for high-priced spare partsand capital goods is considered discontinuous if it is random and contributes a large part of the inventory value. Fluctuating demand for goods will be difficult to predict, and inaccurate estimates can cause huge losses for the company due to obsolescence of spare parts or unfulfilled demand for spare parts. Running a successful company operation today requires organizational strength to supply the needs of its customers. This study discusses the appropriate demand forecasting method for the fluctuation demand for spare parts products at an Indonesian companynamed PT. XYZ. This study compares four forecasting methods to predict the demand for spare parts at PT. XYZ is the ABCAnalysis, the Moving Average, the Simple Exponential Smoothing (SES) and Exponential Smoothing (ES) with TrendAdjustment. This study uses demand data for 2017-2020 to forecast demand in 2021 and uses the optimum alpha value of0.4065 for SES which is obtained by calculating using MS Excel Solver and uses alpha value of 0.5 and beta value 0.3 for ES with Trend Adjustment. The performance of this forecasting method is determined based on the smallest mean absolute percentage error and the level of forecasting accuracy (tracking signal) which is close to zero, and the results of this study indicate that the use of the Exponential Smoothing with trend adjustment method has the best performance compared to the other three methods.
Analysis of an Indonesian food bank sustainability using system dynamics simulation Salsabila Izzati Syalianda; Ratih Dyah Kusumastuti
Interaction, Community Engagement, and Social Environment Vol. 1 No. 1: (July) 2023
Publisher : Institute for Advanced Science Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/icese.v1i1.2023.174

Abstract

Foodbank is an organization that obtains food from donor organizations and individuals, proceeds the donated food products at storage facilities and distributes them to the end users, either directly or indirectly via charitable institutions. Foodbanks have been developed in several countries to tackle food waste and hunger problems. This research uses the case of FoodCycle Indonesia (FCI) as one of the food banks in Indonesia that has been in operation since 2017. The purpose of this study is to analyze the sustainability of FCI using system dynamics simulation to identify the factors that influence its sustainability. We develop the initial model based on literature and modify it according to interview results with representatives from FCI and its two partners (charitable organizations that redistribute the donated food to beneficiaries). The model consists of partners, wedding partners, food redistribution, transportation cost, community, volunteers, beneficiaries, and food balance subsystems. Based on the simulation results it can be concluded that FCI will be sustainable as long as the growth of the food supply is constant, and the organization has the financial ability to support the distribution of donated food to the beneficiaries.
Households Perceptions on Factors Affecting Resilience towards Natural Disasters in Indonesia Viverita, Viverita; Kusumastuti, Ratih Dyah; Husodo, Zaäfri Ananto; Suardi, Lenny; Danarsari, Dwi Nastiti
The South East Asian Journal of Management Vol. 8, No. 1
Publisher : UI Scholars Hub

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Abstract

Most areas in Indonesia are prone to natural disasters. Learning the lessons from the Aceh Tsunami in 2004, areas with high risks of natural disasters are in the process of preparing themselves for such an unexpected event, by increasing their resilience. The objective of this study is to shed more lights on factors affecting the resilience from two sources namely, existing literatures and the application of disaster management in four disaster-prone areas in Indonesia -Padang, Sleman, Cilacap, and Palu. To enrich our analysis, we collect data from the field to compare the preparedness and to get insights on people’s perceptions towards the factors of resilience in those areas.We employ IDI and FGD to identify the factors of resilience and the preparedness in the areas investigated. Thereafter, a preliminary survey is conducted to identify people’s perceptions towards the aspects of resilience in the areas. Results from the survey conducted to 800 households in Padang and Cilacap indicates that from the social aspect, community’s value cohesiveness is one of important factor affecting their resilience towards natural disaster. In addition, since almost 85 percent of their income was spending to fulfill their daily basic needs such as foods, clothing, and housing. Therefore, when disaster occurred, they heavily relied on the help of debt or selling some of their assets, as well as used cash in hand as emergency funds. In general, respondents in all sample cities are able to re-start their economic activities as soon as two weeks after the event of disaster. In addition, the survey found that most of respondents were aware that the government has programs to educate people on the disaster mitigation.
Disaggregation of Productivity Growth of Indonesian Airports Viverita, Viverita; Kusumastuti, Ratih Dyah
The South East Asian Journal of Management Vol. 9, No. 2
Publisher : UI Scholars Hub

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Abstract

This paper reports the sources of productivity growth of 23 Indonesian airports foryears 2006-2010. Using input slack-based productivity index (ISP), we disaggregatetotal factor productivity change into each input productivity change. Apron areaand terminal area are chosen as input variables while aircrafts’ movement is theoutput. By classifying the airports based on two operators, this study finds thatairports under the management of Angkasa Pura 1 (AP1) show higher productivitygrowth than Angkasa Pura 2 (AP2), whose growth is mainly driven by technicalprogress in apron areas. Moreover, the productivity decline of AP2 was mostlydue to inefficient use of terminal areas.
SIMULATION OF BLOOD INVENTORY MANAGEMENT: CASE OF THE INDONESIAN RED CROSS JAKARTA BRANCH Ekaputri, Azaria; Kusumastuti, Ratih Dyah
Journal of Environmental Science and Sustainable Development Vol. 5, No. 2
Publisher : UI Scholars Hub

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Abstract

With around 5.6 million tons of annual plastic consumption and merely 7 percent plastic recycling rate, Indonesia is facing a plastic pollution crisis. The recent progress of Indonesia’s recycling industries has provided an asset to address this crisis. In 2017, the domestic post-consumption plastic waste could only fulfil around 24 percent the domestic needs for recycled plastic, which stands at 1.65 million ton/year. Leveraging the plastic waste ‘asset’ through circular economy can fill this demand gap. A five-month study was conducted to analyse the recycling rate of Polyethylene terephthalate (PET) and Polypropylene (PP)-based beverage plastic packaging in Greater Jakarta Metropolitan Area to see their potential in fostering circular economy. Structured interview involving 385 upstream and downstream recycling actors in Greater Jakarta Metropolitan Area provided primary data for the study. While secondary data from previous studies, academic journals, Nielsen’s audit data and electronic sources complement the primary data, particularly regarding recycling actors and packaging consumption rate. The study showed that over 329 tons of beverage plastic packaging waste was collected daily in Greater Jakarta Metropolitan Area, in which PET-based packaging had accounted for 78 percent of them. Waste pickers play a key role here by contributing to 65% of the collected PET waste. The study also showcased a mature recycling chain of PET and PP-based packaging with its recycling rate that reaches 74 to 93 percent. Looking at their economic value, PET and PP contributed 30 to 51 percent to the income of waste collectors. It can also be estimated that economic activities related to PET management in the could generate IDR 700 million per day at collector level only. The demands of PET continue to increase following the growing innovation in PET-based products. An effectively managed PET and PP plastic system could simultaneously address this demand and foster circular economy.
Co-Authors Adrin, Ghea Rizky Antonio, Bonny Tofani Bonny Tofani Antonio Bustaman, Yosman Dwi Nastiti Danarsari Dwiyana, Meidi Ekaputri, Azaria Fanny Martdianty Husodo, Zaafri Ananto Keanoubie, Muhammad Kusuma, Anak Agung Ngurah Abidzarr Dipo Lenny Suardi Lidiawaty, Lenny Mahmudi Mauliate, Andreas Immanuel Muhammad, Harrtyan Natasaputra, Nugraha Natasaputra, Nugraha Nindiya, Theresia Mayke Nugraha Natasaputra Nur Habibah Nur Habibah Nurdianto, Kresna Nurmala Nurmala Nurmala Nurmala Okatria, Luqy Afifah Putra, Alexander Evan Rahayu, Lea Pungky Rifelly Dewi Astuti Salsabila Izzati Syalianda Saraswati, Mia Suardi, Lenny Sucipta, Hardiansyah Syalianda, Salsabila Izzati Viverita Viverita Yosman Bustaman