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All Journal E-Jurnal Matematika Widyadari : Jurnal Pendidikan
I GUSTI MADE AYU ANGGUN TIARA PRATINI
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Education Mathematics

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ANALISIS RISIKO PORTOFOLIO KREDIT OBLIGASI KORPORASI MENGGUNAKAN METODE CREDITMETRICS I GUSTI MADE AYU ANGGUN TIARA PRATINI; KOMANG DHARMAWAN; NI KETUT TARI TASTRAWATI
E-Jurnal Matematika Vol 13 No 2 (2024)
Publisher : Mathematics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MTK.2024.v13.i02.p452

Abstract

Bond is a medium or long-term debt agreement which when the bond matures will be paid back with the interest. Bonds are issued to obtain new fund flows to meet operational needs and strengthen financial position. One of the risks of bonds is credit risk. This risk occurs due to the issuer's inability to continue and complete its obligations. This risk often occurs in corporate bonds. So, investors need to conduct risk analysis and proper risk management. One method of credit risk analysis is the creditmetrics. In this method, credit score changes are not only caused by the probability of default, but also caused by migration of company ratings. This study aims to calculate the portfolio risk of six corporate bonds and determine the weight that must be given to each bond, so that the minimum risk will be obtained. The estimated portfolio risk obtained is Rp. 15.615 billion with an average portfolio value is Rp. 18.74 billion. Then the weight that must be given to each bond is the first bond of -1.308%, the second bond is -8.542%, the third bond is 32.798%, the fourth bond is 77.716%, the fifth bond is -1.982%, and the sixth bond is 1.317%.
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE TEAM GAMES TOURNAMENT (TGT) PADA PEMBELAJARAN MATEMATIKA SISWA I Made Surat; I Gusti Made Ayu Anggun Tiara Pratini
Widyadari Vol. 25 No. 2 (2024): Oktober 2024
Publisher : LP3M Universitas PGRI Mahadewa Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59672/widyadari.v25i2.4121

Abstract

Mathematics is one subjects taught at all levels and types of formal education with a major contribution to various fields such as technology, industry, finance, and so on. However, mathematics is not a subject that are interested because difficult, scary, uninteresting and boring. This mindset creates negative impressions and experiences. Therefore, teachers should use appropriate models, strategies, methods and approaches so that they can build and improve positive attitudes towards mathematics. The aim of this research is to determine the application of the Team Games Tournament (TGT) type cooperative learning model in mathematics learning for students in class VII H at SMPN 8 Denpasar. The TGT model allows students to learn to collaborate, compete and be responsible while still being guided by learning objectives. This research uses test and non-test instruments in the form of observation sheets, interviews and student learning outcomes tests. The results of this research were that in Cycle I the percentage of students who completed was 56.10%, then increased in Cycle II with a completion percentage of 80.49%. Therefore, it can be said that TGT type cooperative learning can improve the learning outcomes of class VII H students at SMPN 8 Denpasar.
Co-Authors I Made Surat Komang Dharmawan Ni Ketut Tari Tastrawati