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Nunung Ayu Sofiati (Efi)

Universitas Indonesia Membangun

Author-ID : 1857288

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Neuroscience Social Sciences Other

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Event Study Of The New Economy Board On Abnormal Return And Trading Volume Activity Of Company Shares In The Indonesia Stock Exchange Setiawan, Agung; Sudaryo, Yoyo; Sipahutar, Dayan Hakim Natigor; Sofiati, Nunung Ayu
Eduvest - Journal of Universal Studies Vol. 4 No. 8 (2024): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v4i8.1767

The research window for this study is 11 days, which includes 5 days prior to the event, 5 days after the incident, and an estimated 14 days after the event. The type of research in this study is an event study. In this case, the independent variable (variable X) is the event of launching the New Board Economic whereas the dependent variables (variable Y) are abnormal return and trading volume activity. The research sample consists of companies listed on the new economic listing board. The companies included in the sample are GOTO, BUKA, and BELI. Hypothesis testing is done using One Sample T-Test and Paired Sample T-Test. The research results show that the significance value of abnormal return on T-5 is <0.05, whereas for other periods it is >0.05. Similarly, all periods of trading volume activity show values >0.05. This indicates that there is a significant abnormal return on T-5, or 5 days before the event of the launch of the New Economic Board. Meanwhile, in other periods, there is no significant abnormal return, and none of the periods show significant trading volume activity. In the difference test, the Sig. (2-tailed) values for both abnormal return and trading volume activity are >0.05, indicating no difference in abnormal return before and after the launch of the new economic board, as well as no difference in trading volume activity.

Analysis Of Cash Ratio (CR), Debt To Equity Ratio (DER), And Return On Equity (ROE) On Ecomonic Value Added (EVA) In Digital Banks Anindya, Sevina Hanisa; Sudaryo, Yoyo; Sipahutar, Dayan Hakim Natigor; Sofiati, Nunung Ayu; Ismail, Gurawan Dayona
Eduvest - Journal of Universal Studies Vol. 4 No. 8 (2024): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v4i8.1769

This study evaluates the performance of digital banks in Indonesia during 2020-2023 as a real form of digitalization, focusing on the effect of Cash Ratio, Debt to Equity Ratio, and Return on Equity on Economic Value Added (EVA) in digital banks. The research method used is quantitative method with descriptive and verification approaches. The data source used is secondary data with purposive sampling and the companies selected from the criteria are 7 digital bank companies for 4 periods, so that the sample used in this study is 28 samples. The data used in this study are secondary data in the form of annual reports going public on the bank company website. The analysis technique used in this research is regression with panel data using the Eviews program. The results of this study indicate that the significance value of the cash ratio t test T count -0.910149 < T table 2.05553, and a sig value of 0.3718> 0.05 means that the Cash Ratio has no effect on Economic Value Added in 7 digital bank companies. The significance value of the Debt to Equity Ratio T test shows the value of T count -2.272184> T table 2.05553, and the sig value of 0.0323 <0.05. The significance value of the Return on Equity T test shows the value of T count -0.608342 < T table 2.05553, and the sig value of 0.35487> from 0.05 means that Return on Equity has no effect on Economic Value Added in 7 digital bank companies in Indonesia.

Analysis of Current Ratio (CR), Debt To Equity Ratio (DER), Total Asset Turnover (TATO), Return On Assets on Share Prices in Mining Companies Ganesha, Dicky Tri; Sipahutar, Dayan Hakim Natigor; Sudaryo, Yoyo; Sofiati, Nunung Ayu
Eduvest - Journal of Universal Studies Vol. 4 No. 9 (2024): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v4i8.1798

The share prices of mining companies included in the LQ 45 Index are unstable because they experience increases and decreases from 2018 to 2023 (5 years). If the other independent variables remain constant, each increase is one unit Debt to Equity Ratio will reduce share prices -0.643. Then influence Total Asset Turnover to Share Prices in Mining Companies that are members of the LQ 45 Index for the 2018-2023 period is a significant and positive influence. If the other independent variables remain constant, each increase is one unit Total Asset Turnover will increase the share price by 0.453. Furthermore, the influence of ROA (Return On Asset) to Share Prices in Mining Companies that are members of the LQ 45 Index for the 2018-2023 period is a significant and negative effect. If the other independent variables remain constant, each increase is one unit Total Asset Turnover will lower the Share Price 1,060. and Current Ratio, Debt to Equity Ratio, Total Asset Turnover, ROA (Return On Asset) simultaneous significant effect on share prices in Mining Companies that are members of the LQ 45 Index for the 2018-2023 period with a percentage of 79% means that it is 79% Current Ratio, Debt to Equity RatiO,Total Asset Turnover and ROA (Return On Asset) to Stock Price and the rest 21% influenced by factor other than the variables studied.

Comparative Analysis Of Investment Return Calculations Between Single Index Model (SIM), Capital Asset Pricing Model (CAPM), And Arbitrage Pricing Theory (APT) In 8 Mining Company Sectors Noviani, Dinda; Sipahutar, Dayan Hakim Natigor; Sudaryo, Yoyo; Sofiati, Nunung Ayu; Sajekti, Tjipto
Eduvest - Journal of Universal Studies Vol. 4 No. 9 (2024): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v4i8.1799

This study aims to analyze the comparative calculation of investment return rates between three models, namely Single Index Model (SIM), Capital Asset Pricing Model (CAPM), and Arbitrage Pricing Theory (APT), in eight mining company sectors listed on the Indonesia Stock Exchange (IDX 30). This study uses historical data from the mining company sectors to calculate and compare the investment return rates based on these three models. The research method used is statistical analysis to evaluate and compare the predicted investment return rates from the Single Index Model (SIM), Capital Asset Pricing Model (CAPM), and Arbitrage Pricing Theory (APT). The data used includes historical stock prices, company financial data, and relevant market data. The results of this study are expected to provide a better understanding of the effectiveness and advantages of each model in the context of mining companies listed on IDX 30. The results of this study show that the Single Index Model (SIM) indicates a moderate financial potential with an average value of 7,58, which is lower compared to CAPM. A high risk (beta) of 2,20 indicates that this investment has a higher risk than the market. On the other hand, the Capital Asset Pricing Model (CAPM) has a higher average return value of 19,15, indicating greater profit potential but also commensurate risk. The Arbitrage Pricing Theory calculation of 6,46, the lowest, reflects a more cautious calculation of return estimates. The inflation beta risk value of 100.924,50 and the deposit interest beta risk of 9.320,14 are very high.

The Influence Of Training, Competence, And Leadership On Lecturer Career Development Through Work Motivation As An Intervening Variable Jordan, Reza; Ismail, Gurawan Dayona; Sofiati, Nunung Ayu; Ali, Mochammad Mukti; Sudaryo , Yoyo
Eduvest - Journal of Universal Studies Vol. 5 No. 8 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i8.51613

The results of the study indicate that training has an effect on work motivation. The original sample value for variable X1 (training) on Y (work motivation) is 1.14, with a t-statistic of 13.524 and p-values of 0.000, which is smaller than the significance level, indicating a positive and significant influence between variable X1 (training) and Y (work motivation). The original sample value implies that better and higher training leads to better and higher work motivation. Furthermore, competence influences work motivation. The original sample value for variable X2 (competence) on Y (work motivation) is -0.177, with a t-statistic of 2.593 and p-values of 0.01, which is smaller than the significance level, indicating a non-positive but significant influence of variable X2 (competence) on Y (work motivation). Leadership influences work motivation. The original sample value for variable X3 (leadership) on Y (work motivation) is 0.03, with a t-statistic of 0.771 and p-values of 0.441, which is smaller than the significance level, indicating a positive and significant influence of variable X3 (leadership) on Y (work motivation). The original sample value implies that better and higher leadership leads to better and higher work motivation. Subsequently, work motivation influences career development. The original sample value for variable Y (work motivation) on Z (career development) is 0.348, with a t-statistic of 1.645 and p-values of 0.1, which is smaller than the significance level, indicating a positive and significant influence of variable Y (work motivation) on Z (career development).

The Effect Of Training, Competence, And Leadership On Job Satisfaction With Career Development As An Intervening Variable At Xyz Hospital Fajar, Kartika Bunga; Ismail, Gurawan Dayona; Sofiati, Nunung Ayu; Ali, Mochammad Mukti; Sudaryo , Yoyo
Eduvest - Journal of Universal Studies Vol. 5 No. 8 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i8.51804

This study aims to examine the influence of training, competence, and leadership on career development, with job satisfaction acting as a mediating variable. The research uses a quantitative approach with a sample of 100 employees, analyzed using multiple linear regression and path analysis. Data were collected through a structured questionnaire, and the classical assumption tests confirmed that the regression model met the requirements of normality, no multicollinearity, and no heteroscedasticity. The results show that training, competence, and leadership have a positive and significant direct effect on both job satisfaction and career development. In addition, job satisfaction also has a significant direct impact on career development, making it a strong mediating variable. The coefficient of determination (R² = 0.648) indicates that 64.8% of the variation in career development is explained by the variables of training, competence, leadership, and job satisfaction. The Sobel test results further confirm that job satisfaction mediates the relationship between the independent variables and career development. These findings suggest that organizations should focus on improving employee training, enhancing competencies, and strengthening leadership practices, as well as maintaining high job satisfaction, to effectively support employees’ career advancement.

Assessing the Drivers of Financial Distress in Indonesian Rattan SMEs through Digital and Financial Perspectives Sudaryo, Yoyo; Hamdani, Deni; Sofiati, Nunung Ayu; Sipahutar, Dayan Hakim Natigor; Sutisna, Sutisna
Aptisi Transactions On Technopreneurship (ATT) Vol 7 No 3 (2025): November
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/att.v7i3.534

This study's objectives are to ascertain the impact of variables that determine financial distress among Small and Medium-sized Enterprises (SMEs) during the COVID-19 pandemic and post-pandemic period, including the perception of SMS offenders, knowledge of digital marketing, and growth in net profits, as well as to offer solutions to the issues that SMEs face. In Cirebon a descriptive and verifying strategy is taken in the employment of quantitative methodologies in the research. Primary data were used. Gathering information from fieldwork and library research based on surveys distributed and previously published works on SMS's Rattan crimes registered with Cirebon's Micro & Medium Enterprises Cooperation Service. Verification statistics analysis procedures include the use of hypothetical testing with partial and simultaneous tests (f and t-test) as well as data analysis testing using double linear regression. One hundred respondents from SME victim Rattan Cirebon provided the sample data. IBM SPSS version 21.0 is the analytical program that was utilized to process the data. According to some of the research findings, financial distress is greatly impacted by the impression of SME offenders, is unaffected by knowledge of digital marketing, and is greatly impacted by an increase in net profit. Simultaneous research findings reveal that the perspective of SME offenders, comprehension of digital marketing, and growth in net profit have a noteworthy impact on financial Distress.

Analyzing Investor Reaction to PT Chandra Daya Investasi’s Initial Public Offering through Abnormal Returns and Trading Volume Patterns in the Prajogo Pangestu Group Amanati, Nuzul; Sudaryo, Yoyo; Sofiati, Nunung Ayu; Ismail, Gurawan Dayona
SENTRALISASI Vol. 15 No. 1 (2026): January
Publisher : Universitas Muhammadiyah Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33506/sl.v15i1.5069

This research investigates how the stock market responds to the Initial Public Offering of PT Chandra Daya Investasi Tbk (CDIA) and examines its influence on abnormal returns and trading volume activities of companies within the Prajogo Pangestu Group. The study applies an event-study approach to four affiliated issuers, namely BRPT, BREN, TPIA, and CUAN, using an 11-day event window around the IPO and a 60-day estimation period for return modeling. The analysis assesses whether CDIA’s listing generated meaningful price or trading-volume reactions within the group. The findings show that the IPO did not lead to significant abnormal returns or notable changes in trading activity for the affiliated stocks. Only a minor anticipatory response appeared on T–4, while neither the event day nor the days following it exhibited a meaningful market reaction. Overall, the results suggest that the CDIA IPO was treated as a firm-specific event with limited information spillover to other companies in the group.

Local Needs-based Marketing Strategies of Madrasah Aliyah in Rural Areas Asep Toni Muharam; Mulyawan Safwandy Nugraha; Yoyo Sudaryo; Nunung Ayu Sofiati; Dadan Abdul Aziz Mubarok
EDUKASI: Jurnal Penelitian Pendidikan Agama dan Keagamaan Vol. 23 No. 1 (2025): EDUKASI: Jurnal Penelitian Pendidikan Agama dan Keagamaan
Publisher : Badan Litbang dan Diklat Kementerian Agama RI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32729/edukasi.v23i1.2174

This study investigates the implementation of local-needs-based marketing strategies at MA Al-Wasilah Lil Hasanah, a Madrasah Aliyah in Warungkiara, Sukabumi, West Java, Indonesia, where educational access is often constrained in rural areas. Employing a qualitative case study approach, data were collected through in-depth interviews, participatory observations, and document analysis. The findings demonstrate that a hybrid marketing model, integrating community-based engagement with digital strategies, significantly enhances student enrollment and community trust. Traditional methods, such as religious gatherings and social events, foster strong local connections, while digital marketing, despite infrastructural challenges, broadens outreach. By aligning strategies with socio-cultural values, the madrasah strengthens its sustainability and public confidence. This research offers practical insights for optimizing marketing in Islamic schools and highlights the potential of hybrid models for global Islamic educational institutions facing similar challenges. Further studies are recommended to explore the long-term efficacy of digital marketing in rural education settings.

Improving Employee Performance at Banjarwangi Community Health Center: The Role of Leadership, Work Culture, and Work Environment in Enhancing Work Motivation Jupri Pringadi; Asti Nur Aryanti; Nunung Ayu Sofiati; Gurawan Dayona Ismail; Palupi Permata Rahmi
Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) Vol 9 No 1 (2026): Sharia Economics
Publisher : Universitas KH. Abdul Chalim Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/iijse.v9i1.9264

Employee overall performance is a vital determinant of carrier pleasant in public health centers. The emergence of various provider-associated troubles suggests that declining overall performance is closely linked to organizational situations. This observe investigates how management, organizational subculture, and the paintings surroundings affect paintings motivation and, in flip, shape employee overall performance on the Banjarwangi Public health facility. work motivation is located as a mediating variable. using a quantitative survey design, facts have been accrued thru questionnaires and analyzed with the Partial Least Squares–Structural Equation Modeling (PLS-SEM) technique. The loading component assessment suggests that every construct is represented by using its most dominant indicator: the Informational function (X12) strongly reflects management (0.964); Involvement (X2.1) satisfactory represents Organizational subculture (zero.896); the Non-physical paintings surroundings (X3.2) is the most powerful indicator for the paintings surroundings assemble (zero.918); the need for strength (Y2) leads the paintings Motivation construct (zero.913); and Contextual performance (Z2) is the most prominent indicator of employee overall performance (0.926). these results spotlight how informational leadership, employee involvement, supportive non-bodily conditions, the preference for have an effect on, and contextual behaviors shape each variable. The SEM-PLS consequences exhibit that the model has sturdy explanatory functionality, with R² values of zero.562 for paintings Motivation and 0.678 for worker performance. most of the predictors, Organizational way of life exerts the maximum significant impact on paintings Motivation (0.392), observed through the paintings environment (0.322), at the same time as management contributes most effective marginally (zero.071). This indicates that motivation and performance are extra strongly pushed via cultural and environmental factors than by way of management practices. in addition analysis indicates that management, organizational tradition, and the paintings surroundings every have a fantastic and vast influence on paintings motivation. paintings motivation and organizational tradition also substantially decorate worker overall performance, whereas leadership and the paintings environment do not at once impact performance in a sizable way. Mediation trying out exhibits that paintings motivation fully mediates the results of management and the paintings environment on performance, and partly mediates the impact of organizational subculture. usual, the findings underscore the crucial position of labor motivation in improving worker performance. Efforts to raise overall performance ought to prioritize techniques that fortify motivation specially thru supportive management behaviors, the cultivation of a carrier-driven organizational culture, and the status quo of a greater conducive work surroundings.

Co-Authors Abdul Aziz Mubarok, Dadan Ade Salman Alfarisi Admaja, Firma Agustin Dwi agung setiawan Albert Gamot Malau Aldi Rahman Lazuardi Alfarisi, Ade Salman Ali , Mochammad Mukti Ali, Mariyuana Abdussamad Ali, Mochamad Mukti Amanati, Nuzul Ana Hadiana Ana Hadiana, Ana Andi Sukandi Andrean, Meilani Eka Putri Andriasan Sudarso Anggono Anggono Raras Tirto Sakti Anggono Raras Tirto Sakti Anggono Raras Tirto Sakti Anggraeni, Yulia Dyah Anindya, Sevina Hanisa April Gunawan Malau Aris Setiyani Aris Setiyani, Aris Asep Toni Muharam Asti Nur Aryanti Asti Nur Aryanti Astiana Nengsi Astrin Kusumawardani Azis, Dadan Abdul Aziz, Dadan Abdul Benny Bernadus Bernadus, Benny Cahyono, Yoyok Cecep Pahrudin Chandra, Rama Christimulia Purnama Trimurti Dadan Abdul Aziz Mubarok Dadan Abdul Aziz Mubarok Dadan Abdul Aziz Mubarok Daffa, Fauzan Dayan Hakim Natigor Dayon, Gurawan Dayona Ismail, Gurawan Dayona, Gurawan Dedi Kurniawan Detya Wiryany Devyanthi Syarif Dyah Purnamasari Egi Fernandez Ekapaula, Rolla Fadhilah, Alfi Fauzi Fajar, Kartika Bunga Fauzan Daffa Fauzy, Ryan Marshal Febrianto Febrianto, Febrianto Febriyanti, Karina Fernandez, Egi Fitria Ariyani Fitria Ariyani Frans, Raja G, Syahrul Nursapni Ganesha, Dicky Tri Gurawan Dayona Gurawan Dayona Ismail Gurawan Dayona Ismail Gustiawan, Rudi Hamdani, Deni Hamdani, Erico Haris Oky Adi Supinta Hendriawanto, Hendriawanto Herlina, Heni Hikmah, Agung Mohamad Hisashi, Rendy Mahardhika Indah Susanti Indra Sani Irving Ignatius Paul Luntungan Irving Irving Ignatius Paul Luntungan Ismail, Gurawan Dayona Ita Kumaratih Jaya, Rama Chandra Jordan, Reza Josua Panatap Soehaditama Jupri Pringadi Kamal, Muhhammad Ikhsan Kartika Nuradina Khairunisya, Hania Kumaratih, Ita Lazuardi, Aldi Rahman Lili Suryati Louise Panggabean, Helena Luntungan, Irving Ignatius Paul Luntungan, Irving Irving Ignatius Paul Meilani Eka Putri Andrean Mochammad Mukti Ali Mochammad Subagio Mohamad Zaini, Mohamad Muhammad Ishar, Muhammad Mukti Ali, Mochamad Mukti Ali, Mochammad Mulyawan Safwandy Nugraha Munjinadir, Hafid Muttaqin, Ridlwan Nana Trisnawati Nandan Limakrisna Nengsi, Astiana Nenobais, Manoakh Novia Indah Lestari Noviani, Dinda Nur Mastuti, Dian Nur Sumawidjaya, Riyandi Nuradina, Kartika Palupi Permata Rahmi Palupi Permata Rahmi Pertiwi, R. Dewi Prasetiyo, Wildan Guretno Pratiwi, Nunur Fitri Prayoga, Rahmat Prilaksono, Kursusantyo Dudung Primadi Candra Susanto Prinska Damara Sastri Pujianto, Gatot Purbanuara Parlindungan Sitorus Purnamasari, Weny Purwoko, Harry Puspita, Irna Puspo Arianty, Kiki Rama Chandra Jaya Raras Tirto Sakti, Anggono Rendi, Pras Rendy, Pras Ridlwan Muttaqin Ridwan Ramadhan Rimayani, Rimayani Rintis Eko Widodo Riyandi Nur Sumawidjaja Riyandi Nur Sumawidjaya Rizki Fathurrahman Septian Rohmatullah Rona Tumiur Mauli Carolin Simorangkir Safitri, Meilina Sani, Indra Sastri, Prinska Damara Setiawan, Naufal Alip Putra Sidjabat, Sonya Sofyan, Hadiyan Nur Solihah, Maya Sonya Sidjabat Sudarmadji, Harrys Sudaryo , Yoyo Sugandi, Akhmad Sugiarti Sugiarti Suhendra, Agus Sujatmika, Dendi Sumawidjaya, Riyadi Nur Sumawidjaya, Riyandi Nur Sutisna Sutisna Syarif, Devyanthi Tedy, Hilmanius Thessa Tri Astuty Tjipto Sajekti Viryal Iga Utari Wardana, Wikrama Wiara Sanchia Grafita Ryana Devi Widodo, Rintis Eko Widyastuti Nurmalia Utami WIjayanthi, Ida Ayu Trisna Wikrama Wardana Wiryani, Detya Yosi Pahala Yoyo Sudaryo Yoyo Sudaryo Yuningsih, Salsa Billa Putri

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