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All Journal Jurnal Manajemen dan Agribisnis ESENSI: JURNAL BISNIS DAN MANAJEMEN Signifikan : Jurnal Ilmu Ekonomi ETIKONOMI Economic Journal of Emerging Markets Jurnal Siasat Bisnis Jurnal Ilmiah Akuntansi dan Bisnis Jurnal Ekonomi Kuantitatif Terapan MATRIK: JURNAL MANAJEMEN, STRATEGI BISNIS, DAN KEWIRAUSAHAAN Jurnal Manajemen Teknologi Jurnal Keuangan dan Perbankan JDM (Jurnal Dinamika Manajemen) Trikonomika: Jurnal Ekonomi Journal of Economics, Business, & Accountancy Ventura IQTISHADIA JAM : Jurnal Aplikasi Manajemen Indonesian Journal of Business and Entrepreneurship (IJBE) Jurnal Ekonomi Pembangunan: Kajian Masalah Ekonomi dan Pembangunan EKOMBIS REVIEW: Jurnal Ilmiah Ekonomi dan Bisnis MIX : Jurnal Ilmiah Manajemen Jurnal Maneksi (Management Ekonomi Dan Akuntansi) Asia-Pacific Management and Business Application Substansi: Sumber Artikel Akuntansi Auditing dan Keuangan Vokasi IJHCM (International Journal of Human Capital Management) Jurnal Bisnis dan Manajemen Economica: Jurnal Ekonomi Islam Jurnal Ekonomi dan Bisnis Syntax Literate: Jurnal Ilmiah Indonesia Inovasi : Jurnal Ekonomi, Keuangan, dan Manajemen Jurnal ASET (Akuntansi Riset) Jurnal Riset Akuntansi dan Keuangan Fair Value: Jurnal Ilmiah Akuntansi dan Keuangan Jesya (Jurnal Ekonomi dan Ekonomi Syariah) JABM JOURNAL of ACCOUNTING - BUSINESS & MANAGEMENT Dinasti International Journal of Education Management and Social Science International Journal of Economics Development Research (IJEDR) Quantitative Economics and Management Studies BISMA (Bisnis dan Manajemen) Economic Reviews Journal Proceeding of the International Conference on Family Business and Entrepreneurship (ICFBF) Indonesian Capital Market Review Eduvest - Journal of Universal Studies
Buddi Wibowo
Department Of Management, Economic And Business Faculty, Universitas Indonesia, Jakarta
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Neuroscience Social Sciences Other

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Impact of Anonymity Broker ID on Market Quality: Evidence From Indonesia Stock Exchange Farah Permanasari; Buddi Wibowo
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v7i11.12058

Abstract

This study aims to determine the effect of the implementation of Anonymity Broker ID on the quality of the stock market on the Indonesia Stock Exchange (IDX). The application of Anonymity Broker ID is measured by dummy indicators over the period before and after Anonymity Broker ID. Market quality measurement consists of high low volatility of stocks, bid-ask-spread, total depth value and volume. Hypothesis testing was carried out using Fixed Effect Ordinary Least Squares (OLS) and Fixed Effect Two-Stage Least Square (2SLS) regression models and using a sample of all stocks that were actively transacting during the period 04 December 2020 to 06 December 2022. The results provide empirical evidence that Anonymity Broker ID has a positive effect on the volatility of the 330 most active stocks, positively affects Total Depth Value, Bid Ask Spread and Volume. It can generally be concluded that Anonymity Broker ID can effectively dampen excessive market reaction during enactment.
Risk Analysis of Electricity Demand at Public Electric Vehicle Charging Stations (SPKLU): CVaR Model Approach Teuku Sadri Ramadhan; Buddi Wibowo
Quantitative Economics and Management Studies Vol. 5 No. 3 (2024)
Publisher : PT Mattawang Mediatama Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/454RI.qems2580

Abstract

The electricity demand at Public Electric Vehicle Charging Stations (SPKLUs) exhibits significant volatility, which is driven by several aspects including electricity demand patterns at specific time intervals, load variability, SPKLU capacity, and other related factors. The variability of these swings can present hazards for SPKLU operators in relation to energy administration as well as operational and financial hazards. The objective of this study is to assess the risk associated with energy demand fluctuation at SPKLUs by employing the Conditional Value-at-Risk (CVaR) model technique. CVaR, or Conditional Value at Risk, is a quantitative measure of risk that calculates the predicted loss value in the most unfavorable situation. It is commonly employed to enhance the risk management approach of SPKLUs. The electricity demand at SPKLU exhibits significant volatility, with an average fluctuation of 10.15% and a standard deviation of 49.67%. The CVAR, calculated at -121.19% for a confidence interval of 1%, represents the maximum potential loss that could be experienced during worst-case electrical demand conditions, highlighting the substantial fluctuations in demand. The study initially implemented the CVaR model to analyze power demand at SPKLU, providing novel perspectives on risk reduction for critical infrastructure and proposing unique strategies for managing demand fluctuations in a reliable and efficient manner. The results also offer comprehensive insights into risk exposure and facilitate the formulation of well-informed and strategic risk management plans.
The Influence of Liquidity on Bond Credit Ratings: Evidence from The Indonesian Corporate Bond Market Firly Armanda; Buddi Wibowo
Quantitative Economics and Management Studies Vol. 5 No. 3 (2024)
Publisher : PT Mattawang Mediatama Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/454RI.qems2659

Abstract

This study examines the effectiveness of various liquidity proxies in distinguishing between Investment Grade (IG) and High Yield (HY) bonds within the Indonesian corporate bond market. Utilizing logistic regression models across a dataset of 30,738 observations for IG bonds and 176 observations for HY bonds, we evaluated the impact of six liquidity proxies: Range Measure (RG), Hui Heubel ratio (HH), Market Share (MS), Interquartile Range (IR), Imputed Roundtrip Cost (IRC), and Trading Volume (TV). The findings reveal that the Imputed Roundtrip Cost (IRC) is the most reliable indicator of liquidity, demonstrating a significant negative relationship with the likelihood of a bond being classified as IG. This suggests that higher IRC values, which represent higher transaction costs, are associated with lower liquidity. In contrast, the other proxies, including the Hui Heubel ratio, did not show consistent or significant impacts in line with the hypotheses. The study concludes that IRC is the best measure for assessing liquidity in the Indonesian corporate bond market.
Comparative Analysis of Value-at-Risk in Market Risk Prediction in Banks Using GARCH Volatility Girindra Chandra Alam; Buddi Wibowo
Quantitative Economics and Management Studies Vol. 5 No. 3 (2024)
Publisher : PT Mattawang Mediatama Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/454RI.qems2661

Abstract

This study aims to compare the disclosure of Value at Risk (VaR) in market risk prediction among banks in Indonesia. By employing comparative and analytical methods, this research examines the effectiveness of VaR disclosure as a market risk prediction tool. Through the evaluation of VaR models disclosed by Indonesian banks and their comparison to a parametric model using asymmetric GARCH volatility for Variance Covariance Value at Risk, this study identifies the extent to which VaR disclosure can be relied upon to predict market risk. This research contributes to the understanding of risk management practices in the Indonesian banking sector and offers recommendations for improving market risk prediction accuracy through more effective VaR disclosures.
Herding behavior and sentiment: pre and post-investor domicile code closure in Indonesia stock exchange Subhiksa, Siwa Kantha; Wibowo, Buddi
Fair Value: Jurnal Ilmiah Akuntansi dan Keuangan Vol. 4 No. Spesial Issue 4 (2022): Fair Value: Jurnal Ilmiah Akuntansi dan Keuangan
Publisher : Departement Of Accounting, Indonesian Cooperative Institute, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Previous research has shown mixed results regarding herding behavior in Indonesia. Furthermore, this article analyzes herding behavior in the Indonesian capital market, especially in the conditions before and after the closure of the investor's domicile code as of June 27 2022, by the Indonesian Stock Exchange (IDX). This regulation concerns the closing of foreign and domestic broker codes, which are considered capable of causing herding behavior. Additionally, investor sentiment was also reviewed as a factor that might be contributed to the mixed results of herding behavior in Indonesia. A sample of 607 companies before domicile code closure and 681 companies after domicile code closure were tested using a combination of CSSD and CSAD. The two approaches used to measure show non-significant results of herding both pre and post-closure of domicile code. Investor sentiment was also not seen as a factor that contributed to herding since herding is also non-significant during low or high sentiment before and after the domicile code's closure. Different methods and influencing factors should be considered for further research.
Compliance Risk Management Tax Supervision of Village Government Agencies: Case Study of KPP Pratama Jember Akbar, Moh Abrori; Wibowo, Buddi
SUBSTANSI Vol 8 No 2 (2024): JURNAL SUBSTANSI
Publisher : Politeknik Keuangan Negara STAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35837/subs.v8i2.2884

Abstract

Research objective: This research aims to create a compliance risk map for village government agencies (IPDes) in KPP Pratama Jember, to inform monitoring and education priorities Method: In-depth interviews were conducted and analyzed qualitatively using thematic analysis to gain a deeper understanding of the phenomenon under study and machine learning techniques were utilized for data mapping Research findings: The resulting risk map categorized 14 IPDes as high-risk, prioritizing them for targeted supervision and intervention efforts. Practical implication: This research is expected to provide additional insights into the application of CRM to IPDes. The development of IPDes CRM needs to be considered by the Directorate General of Taxes (DGT) to be realized considering that no tool can be used to prioritize IPDes supervision. Furthermore, this study can be a trigger for the development of CRM at the national level, and village tax compliance can be a variable in the distribution of regional transfers Keywords: Compliance Risk Management, village government agencies (IPDes), village income and expenditure allocations (APBDes).
Analisis Pengaruh Perhatian Investor pada Masa Penawaran Umum Perdana (IPO) terhadap Volatilitas Harga Saham Pasca IPO Ahmad Dwi Murdani* dan Buddi Wibowo Murdani, Ahmad Dwi; Wibowo, Buddi
Economic Reviews Journal Vol. 4 No. 1 (2025): Economic Reviews Journal
Publisher : Masyarakat Ekonomi Syariah Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56709/mrj.v4i1.622

Abstract

This study examines the effect of investor attention during the Initial Public Offering (IPO) period on the stock prices volatility after the shares are listed and traded on the Indonesia Stock Exchange (IDX). This study uses data on the shares of issuers who have conducted an IPO on the IDX after the implementation of the electronic Initial Public Offering (e-IPO) mechanism, with the aim of being able to capture the phenomenon of retail investor behavior. The method used in this study is the regression method. This study shows that the level of investor attention during the IPO period influences the stock price volatility on short-term dan medium-term investment horizon.
The Impact of International Portfolio Flows on Exchange Rate Volatility in Emerging Markets in Asia Shasazuhni, Mohamad; Wibowo, Buddi
International Journal of Economics Development Research (IJEDR) Vol. 5 No. 5 (2024): International Journal of Economics Development Research (IJEDR)
Publisher : Yayasan Riset dan Pengembangan Intelektual

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/ijedr.v5i4.4372

Abstract

This research explores how inflows of stock and bond portfolios impact the level of volatility in exchange rates, using monthly data from the United States vis a vis seven emerging Asia countries (China Mainland, China Taiwan, The Philippines, India, Indonesia, Malaysia, and Thailand) between 2010 and 2022. The study uses statistical models such as Ordinary Least Square (OLS), Generalized Autoregressive Conditional Heteroscedasticity (GARCH), and Threshold Generalized Autoregressive Conditional Heteroscedasticity (TGARCH). The findings indicate that net stock and net bond flows have a significant impact on exchange rates volatility, and net stock flows have a more significant impact on exchange rates volatility rather than net bond flows..
The Data Management Transformation in the Capital Market: A Case Study of PT XYZ in the Centralization and Sharing Strategy of Investor Data Through the ABC System Budhi Santoso, Pungkas; Wibowo, Buddi
Dinasti International Journal of Education Management And Social Science Vol. 5 No. 5 (2024): Dinasti International Journal of Education Management and Social Science (June
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijemss.v5i5.2854

Abstract

This study is conducted using a robust research methodology. It aims to analyze the capacity and capabilities of PT.  XYZ in implementing the strategy of Investor Data Centralization and KYC Data Sharing through the ABC System.  This strategy aims to provide centralized KYC storage and KYC data sharing through the ABC (Centralized Investor Data Management System) platform, which participants in the Indonesian capital market sector can utilize. The study employs both external analysis (PESTEL model, Porter's Diamond, and comparative analysis with KYC platforms in other countries) and internal analysis (Value Chain and VRIO Framework) to assess PT XYZ's capacity and capability in executing this strategy. The effectiveness of this strategy is measured through EFE, IFE, IE and SWOT matrices.  The research findings are expected to offer strategic insights into opportunities and challenges in KYC data centralization strategies, provide recommendations for optimizing CORES services, and contribute to the strategic management literature in the financial sector, especially in the context of KYC regulation and technology.  
Comparative Analysis of Hedging Effectiveness in Indonesia’s National Electrical Company: An Evaluation of Ordinary Least Square (OLS), General Autoregressive Conditional Heteroskedasticity (GARCH) and Naïve Dollar-Offset Models Asrudin, Rudi; Wibowo, Buddi
Quantitative Economics and Management Studies Vol. 5 No. 4 (2024)
Publisher : PT Mattawang Mediatama Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/454RI.qems2697

Abstract

This study evaluates the hedging effectiveness of Indonesia’s national electrical company, PT PLN (Persero), by comparing Ordinary Least Squares (OLS), Generalized Autoregressive Conditional Heteroskedasticity (GARCH), and Dollar Offset models. Using transaction data from 2018-2023, the analysis shows that the OLS model explains 48.8% of the variance in forward rates, indicating high effectiveness. The GARCH model, while capturing dynamic volatility with an average effectiveness of 4.32%, demonstrates the need for advanced models in volatile conditions. The Dollar Offset method, despite its simplicity, shows a moderate effectiveness of 19.03%. Combining these methods can enhance hedging strategies, providing robust risk management. Future research should expand data sources and periods to further validate findings.
Co-Authors Adrianto, Adrianto Akbar, Lolita Akbar, Moh Abrori Alfadjri, Muhammad Rummy Anas Lutfi Asrudin, Rudi Bagus Adhi Luthfi Budhi Santoso, Pungkas Farah Permanasari Firly Armanda Girindra Chandra Alam Hasna Fadhila Hendrikus Passagi I Gde Reza Rizky Margana I. G. B. Erri Wibowo Ida Bagus Teguh Cipta Maya Negara Jemitra, Jemitra Kurniawan, Adithya Kusmini, Tuti Lazuardi, Eduardo Martono Tampubolon Mochamad Yusuf Alsagaff Muhammad Budi Prasetyo Muhammad Iqbal Muhammad Iqbal Muhammad Pudjianto Murdani, Ahmad Dwi Mutiara Hikmah Nur Astiwi, Putri Pittauli Lidia Simanjuntak Pribadi, Sukma Kukuh Putri Nur Astiwi Rasyadan, Resa Robertho, Valentino Robertho, Valentino Shasazuhni, Mohamad Shidiq, Imaduddin Siantoro, Andree Prasetyo Stefano, David Subhiksa, Siwa Kantha Teuku Sadri Ramadhan Titis Fatarina Mahfirah Wibowo, I. G. B. Erri Wilbert Ham