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All Journal Jurnal Abdimas Bina Bangsa Theta: Journal of Statistics
Rifki Hamdani
Universitas Tidar
Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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PELATIHAN DAN PENGUATAN KAPASITAS DALAM MENULIS ARTIKEL ILMIAH DI SEBAGAI KOMPETENSI BERKELANJUTAN DI MGMP MATEMATIKA SMP KABUPATEN TEMANGGUNG Megita Dwi Pamungkas; Fadhilah Rahmawati; Rifki Hamdani; Muhammad Jibran Al Fauzi; Narisya Diar Permana; Irka Lestari; Muhammad Irvan Ardianto
Jurnal Abdimas Bina Bangsa Vol. 5 No. 1 (2024): Jurnal Abdimas Bina Bangsa
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/jabb.v5i1.782

Abstract

Continuous Professional Development includes three things, namely self-development, scientific publications, and innovative work. The problems that occur in partners are still a lack of understanding of mathematics teachers about making scientific articles and still a lack of understanding about the stages of publication of scientific articles in journals through OJS. To facilitate scientific publications of mathematics teachers, Tidar University organizes assistance in writing scientific articles and scientific publications as a means of teacher self-development, especially teachers who are members of the mathematics MGMP of SMP Temanggung Regency. The methods used are socialization (discussion and question and answer), assistance in article preparation, practical exercises in using the open journal system (OJS), and evaluation. At the end of the activity, a survey will be conducted to check the understanding of partners after the activity. The implementation of this Community Partnership Program activity was carried out as many as 2 meetings in the Hall of SMP Negeri 2 Temanggung offline and online using gmeet. Service activities include training, mentoring, and socialization of manuscript submissions to destination journals. The result of the service activities is that junior high school mathematics teachers throughout Temanggung Regency get a good understanding in writing scientific articles and publishing articles in the field of mathematics education
Similarity Analysis of the Default Transition of Bond Issuer in Indonesia using Euclidean Distance Aulia Ikhsan; Fikri C Permana; Ayu Nurulhaq Putri; Rifki Hamdani; Mukhtar Mukhtar; Syarif Abdullah; Rifqy Hafizh; Muhammad Hikam Adiguna; Dinda Dwi Anugrah Pertiwi; Kinanthi Trah Asmaraningtyas
Theta: Journal of Statistics Vol 1, No 1 (2025): Available Online in March 2025
Publisher : Faculty of Engineering, Univesitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/tjs.v1i1.31335

Abstract

The debt instrument (bond) as one of the investment instruments in the Capital Market has a main risk known as default. Default risk can be mitigated if investors assess the credit quality of the bond and its issuer, as measured by rating. In this research, the initial rating of issuers was investment grade (BBB or higher) and valid for at least 1 year, with their business operations based in Indonesia. The observation period was from 2007 to 2023. A Markov Chain was used to create a transition matrix to analyze transitions and default. The probability of AAA staying over 1 year is 0.9858 whereas the likelihood of AA, A, and BBB staying in the same rating is 0.9203, 0.8825, and 0.8630, respectively. The BBB in a 5-year transition has the highest probability of default by 0.0370. The Euclidean distance was used to measure the similarity of default durations. The 1-year and 3-year transition have the shortest distance, at  0.00939. The conclusion of this research is a higher rating has a higher probability of staying at the same rating and carries lower risk. Furthermore, 1-year and 3-year transitions show similarities based on their probability of default.
Co-Authors Aulia Ikhsan Ayu Nurulhaq Putri Dinda Dwi Anugrah Pertiwi Fadhilah Rahmawati Fikri C Permana Irka Lestari Kinanthi Trah Asmaraningtyas Muhammad Hikam Adiguna Muhammad Irvan Ardianto Muhammad Jibran Al Fauzi Mukhtar Mukhtar Narisya Diar Permana Pamungkas, Megita Dwi Rifqy Hafizh Syarif Abdullah