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All Journal Journal of Indonesian Economy and Business Economic Education and Entrepreneurship Journal Yumary: Jurnal Pengabdian kepada Masyarakat International Journal of Education, Social Studies, And Management (IJESSM) Indonesian Journal of Multidisciplinary Science Ekalaya : Jurnal Ekonomi Akuntansi
Mahatma Kufepaksi
University of Lampung
Humanities Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Public Health Social Sciences Other

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Overconfident Behavior in a Security Market, the Implication of Self Deceptive Behavior in Price Discovery Processes – A Market Experiment Kufepaksi, Mahatma
Journal of Indonesian Economy and Business Vol 23, No 1 (2008): January
Publisher : Journal of Indonesian Economy and Business

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Abstract

People may suffer from overconfidence in their daily activities. According to psychological research, less informed individuals may suffer from overconfidence. Empirical research shows that investors suffer from transaction losses due to overconfidence. This current research is an experimental research project that addresses these issues. According to the research design, all investors are classified into three groups based on their scores of overconfidence, namely the less informed investors, the rational (average) investors, and themore informed investors. In order to observe the responses of the groups of investors when they receive valuable information, the research employs four different types of treatments consisting of the condition of no market information, the provision of guidance of security prediction, the good news and the bad news.The research demonstrates that the less informed investors are inclined to assess the precision of their knowledge and information excessively so that they produce a higher mean of prediction and price errors than those of the more informed investors in all experimentalmarket sessions, except in the market session of good news. The phenomenon indicates that less informed investors conduct a self deceptive behavior. The result of the research also shows that although the less informed investors have higher mean of prediction or price errors, they have a chance to gain profit as long as they are able to deliver the predicted value of the security accurately which is closer to the market price that reflects the expected price ofthe majority of the market players.Keywords: Overconfidence, self-deception, price (prediction) error; transaction losses
DO OVERCONFIDENT INVESTORS TRADE EXCESSIVELY IN THE CAPITAL MARKET? EVIDENCES IN AN EXPERIMENTAL RESEARCH SETTING Kufepaksi, Mahatma
Journal of Indonesian Economy and Business Vol 26, No 2 (2011): May
Publisher : Journal of Indonesian Economy and Business

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Abstract

The existence of overconfident investors in capital markets has been the subject of much researches in the past. Using the market data, these previous researches demonstrates that overconfident investors tend to trade excessively, leading to losses. The current experimental research addresses these issues in the Indonesia Capital Market. According to its methodology, participants are classified into three groups based on their score of overconfidence: moderate, more overconfident, and less overconfident investors. The research design employs the state of no available market information, good news signals, and bad news signals as treatments. The result demonstrates that the more overconfident investors perform higher trading value than those who are less overconfident in all artificialmarkets leading to transaction losses, except that in the bad news market. In that bad news market, the more and the less overconfident investors gain profits, and the moderateinvestors suffer from trading losses.Keywords: overconfidence, excessive trading, profit and loss
The Effect of Dividend Payout Ratio (DPR), Company Size, And Debt To Equity Ratio (DER) on Glamor Stock Return in Manufacturing Companies Listed on The Indonesia Stock Exchange for the 2010-2020 Period Putri, Fentia Ramadhani; Kufepaksi, Mahatma
International Journal Of Education, Social Studies, And Management (IJESSM) Vol. 3 No. 2 (2023): The International Journal of Education, Social Studies, and Management (IJESSM)
Publisher : LPPPIPublishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52121/ijessm.v3i2.168

Abstract

This study aims to examine the effect of the Dividend Payout Ratio (DPR) variable, firm size, Debt to Equity Ratio (DER) on the glamour stock return in manufacturing sector companies for the 2010-2020 period. The type of data used in this study is quantitative data. This research method is in the form of causal-comparative with data testing technique based on descriptive statistical tests, classical assumption tests, multiple linear regression tests and hypothesis testing. The sampling technique uses the saturated sampling technique metho in Non-Probability Sampling and produces 27 companies as research samples. Based on the analysis of this study it is known that the Dividend Payout Ratio (DPR) has a positive effect on the return of glamor stock as evidenced by the results of the regression test of 0.098 and the t test of 0.006. Firm size has a significant positive effect on glamor stock returns as evidenced by the results of the regression test of 2.542 and the t-test of 0.001. Debt to Equity Ratio (DER) has a significant negative effect on the return of glamor stock as evidenced by the results of the regression test of -0.161 and the t-test of 0.000.
The Influence of Managerial Ownership, Company Growth and Profitability on Dividend Policy in LQ45 Companies 2019-2021 Magdalena Napitupulu, Maria; Hasnawati, Sri; Kufepaksi, Mahatma
Economic Education and Entrepreneurship Journal Vol 7, No 1 (2024): Economic Education and Entrepreneurship Journal (E3J)
Publisher : FKIP Universitas Lampung

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Abstract

Dividend policy is a decision about how much of current earnings will be paid out as dividends rather than retained earnings which will then be reinvested in the company. dividend policy can be measured through the dividend payout ratio (DPR). The ratio shows the percentage of the company's earnings that are paid out to shareholders in cash. Companies that have a high DPR and increase from year to year can provide positive signals to investors, because dividend announcements can be used as information by shareholders regarding company performance. This study aims to determine the effect of managerial ownership, company growth, profitability on dividend policy in LQ45 companies 2019-2021. This research is quantitative research. The data used is also secondary data taken from the official website of the Indonesia Stock Exchange in the form of financial reports of LQ45 companies listed on the IDX. Based on the results of data analysis and discussion of the effect of Managerial Ownership, Company Growth, and Profitability on Dividend Policy in LQ45 companies 2019 - 2021, it can be concluded. The managerial ownership variable has no effect on dividend policy as proxied by the dividend payout ratio. The company growth variable affects the dividend policy proxied by the dividend payout ratio. This indicates that any increase or decrease in total assets during the observation period affects the dividend to be distributed to shareholders. The profitability variable has no effect on dividend policy proxied by the dividend payout ratio.Keywords: Managerial Policy, Company Growth, Profitability, Dividend PolicyDOI: http://dx.doi.org/10.23960/E3J/ v7i1.34-42 
The Influence of the Board of Commissioners, Institutional Ownership, and Managerial Ownership on the Firm Value of Non-Banking State-Owned Enterprises Prasetyo, Deny; Kufepaksi, Mahatma; Dalimunthe, Nindytia Puspitasari
EKALAYA : Jurnal Ekonomi Akuntansi Vol. 3 No. 1 (2025): Ekalaya : Jurnal Ekonomi Akuntansi
Publisher : CV. Kalimasada Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59966/ekalaya.v3i1.1743

Abstract

This study examines the influence of corporate governance mechanisms—specifically the Board of Commissioners, Institutional Ownership, and Managerial Ownership-on the firm value of non-banking state-owned enterprises (SOEs) listed on the Indonesia Stock Exchange from 2014 to 2023. Using a panel data regression model based on purposively selected samples of 15 firms over a ten-year period, the results indicate that while institutional and managerial ownership significantly enhance firm value, the size of the board of commissioners does not exert a statistically significant effect. The findings highlight the importance of active monitoring by institutional investors and alignment of managerial interests with shareholders in improving corporate performance. These insights contribute to understanding effective governance practices in SOEs and offer practical recommendations for policy-makers aiming to enhance transparency and accountability within Indonesian state-owned enterprises.
The Influence of Managerial Ownership, Company Growth and Profitability on Dividend Policy in LQ45 Companies 2019-2021 Magdalena Napitupulu, Maria; Hasnawati, Sri; Kufepaksi, Mahatma
Economic Education and Entrepreneurship Journal Vol 7, No 1 (2024): Economic Education and Entrepreneurship Journal (E3J)
Publisher : FKIP Universitas Lampung

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Abstract

Dividend policy is a decision about how much of current earnings will be paid out as dividends rather than retained earnings which will then be reinvested in the company. dividend policy can be measured through the dividend payout ratio (DPR). The ratio shows the percentage of the company's earnings that are paid out to shareholders in cash. Companies that have a high DPR and increase from year to year can provide positive signals to investors, because dividend announcements can be used as information by shareholders regarding company performance. This study aims to determine the effect of managerial ownership, company growth, profitability on dividend policy in LQ45 companies 2019-2021. This research is quantitative research. The data used is also secondary data taken from the official website of the Indonesia Stock Exchange in the form of financial reports of LQ45 companies listed on the IDX. Based on the results of data analysis and discussion of the effect of Managerial Ownership, Company Growth, and Profitability on Dividend Policy in LQ45 companies 2019 - 2021, it can be concluded. The managerial ownership variable has no effect on dividend policy as proxied by the dividend payout ratio. The company growth variable affects the dividend policy proxied by the dividend payout ratio. This indicates that any increase or decrease in total assets during the observation period affects the dividend to be distributed to shareholders. The profitability variable has no effect on dividend policy proxied by the dividend payout ratio.Keywords: Managerial Policy, Company Growth, Profitability, Dividend PolicyDOI: http://dx.doi.org/10.23960/E3J/ v7i1.34-42 
Capital structure, company liquidity, and company size on company value mediated by credit risk Reza, Ahmad Khairul; Kufepaksi, Mahatma; Jubaedah, Jubaedah
Indonesian Journal of Multidisciplinary Science Vol. 3 No. 1 (2023): Indonesian Journal of Multidisciplinary Science
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/ijoms.v3i1.706

Abstract

This study uses quantitative secondary data to determine the effect of capital structure, company liquidity and company size on company value with credit risk as a mediation variable. The researcher used quantitative approach with descriptive quantitative design. The population of this study is banking companies listed on the Indonesia Stock Exchange in the period 2010-2020 totaling 29 banking companies. The data used is a panel data regression method using the eviews version 10 application. Sample selection using full sampling. The results obtained show that (1) Capital structure has a positive effect on company value, (2) Liquidity does not affect company value, (3) Company size does not affect company value, (4) Credit risk does not affect company value, (5) Capital structure has a negative effect on credit risk, (6) Liquidity does not affect credit risk, (7) Company size has a positive effect on credit risk,  (8) Credit risk is not proven as an intervening variable in banking companies in Indonesia.
Pemberdayaan UMKM Desa Purworejo melalui Edukasi QRIS untuk Inklusi Keuangan Digital Kufepaksi, Mahatma; Dalimunthe, Nindytia Puspitasari; Hasnawati, Sri; Putri, Lidya Ayuni; Faisol, Ahmad; Wulan, Mutiasari Nur
Yumary: Jurnal Pengabdian kepada Masyarakat Vol 6 No 3 (2026): Maret
Publisher : Penerbit Goodwood

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/yumary.v6i3.5690

Abstract

Purpose: This activity aims to enhance the digital financial literacy of MSMEs, provide practical skills in the use of QRIS, and offer guidance in its implementation for daily transactions. Moreover, the program seeks to cultivate behavioral changes among local entrepreneurs by encouraging transparency, accountability, and technological adaptation in their business practices. Research Methodology: This activity was conducted on August 28, 2025, and was attended by 30 participants consisting of MSME owners and representatives from the Village-Owned Enterprise (BUMDes). The method used included a sharing session of QRIS and a demonstration of its practical use. Results: Participants demonstrated high levels of engagement and enthusiasm, particularly during the QRIS usage simulation. An increase in participants’ knowledge of QRIS was evident from the improvement in their pre-test (55) and post-test scores (83). Conclusions: The implementation of community service activities focused on training and mentoring in the use of QRIS for MSMEs in Purworejo Village has had a positive impact on increasing the community's digital financial literacy. Limitations: Constraints related to limited smartphone proficiency and the substantial distance to formal financial institutions resulted in this program being confined primarily to socialization efforts. It is anticipated that subsequent community engagement initiatives will be able to provide more comprehensive support, particularly in facilitating MSMEs through the formal QRIS registration and merchant onboarding process. Contributions: By equipping participants with both knowledge and hands-on experience, this initiative contributes to improve MSMEs’ knowledge of QRIS usage and encourage some business owners to begin adopting QRIS in their transactional practices.
The Impact of Dividend Policy, Capital Structure, and Earning Growth on Firm Value: Study on the Pharmacy Sub-Sector Listed on the IDX 2010-2024 Rahmayanti, Ayuning Rizqi; Kufepaksi, Mahatma; Dalimunthe, Nindytia Puspitasari
International Journal Of Education, Social Studies, And Management (IJESSM) Vol. 6 No. 1 (2026): The International Journal of Education, Social Studies, and Management (IJESSM)
Publisher : LPPPIPublishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52121/ijessm.v6i1.1011

Abstract

This research analyzes how dividend policy, capital structure, and earnings growth influence firm value in pharmaceutical sub-sector companies listed on the Indonesia Stock Exchange over the 2010–2024 period. Firm value is represented by Price to Book Value (PBV), dividend policy is proxied by the Dividend Payout Ratio (DPR), capital structure is measured using the Debt-to-Equity Ratio (DER), and earnings growth is calculated through the growth rate of Earnings Per Share (EPS). Firm size, expressed as the natural logarithm of total assets, is incorporated as a control variable to account for differences in company scale. The study applies purposive sampling and includes 105 firm-year observations derived from seven selected companies. The analysis utilizes descriptive statistics, classical assumption testing, multiple linear regression, and hypothesis evaluation through partial and simultaneous significance tests. The findings reveal that dividend policy has a negative and statistically significant relationship with firm value, indicating that greater dividend distributions tend to correspond with lower market valuation. Conversely, capital structure and earnings growth do not show significant effects on firm value during the observation period. These results suggest that investors in the pharmaceutical industry may place greater emphasis on broader performance and strategic factors rather than leverage composition or short-term profit growth alone. Additionally, firm size demonstrates a significant association with firm value, highlighting the relevance of corporate scale in shaping market appraisal. This study contributes empirical evidence to support financial decision-making and investment analysis in the pharmaceutical sector.
Co-Authors AHMAD FAISOL Dalimunthe, Nindytia Puspitasari JUBAEDAH JUBAEDAH, JUBAEDAH Magdalena Napitupulu, Maria Prasetyo, Deny Putri, Fentia Ramadhani Putri, Lidya Ayuni Rahmayanti, Ayuning Rizqi Reza, Ahmad Khairul Sri Hasnawati Wulan, Mutiasari Nur