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All Journal Enrichment : Journal of Management Journal of Health, Education, Economics, Science, and Technology (J-HEST)
Darmia, Darmia
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Economics, Econometrics & Finance Education Health Professions Library & Information Science Other

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Sustainable premium of sustainable corporate bonds in Indonesia Darmia, Darmia; Kim, Sung Suk
Enrichment : Journal of Management Vol. 14 No. 4 (2024): October: Management Science And Field
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/enrichment.v14i4.2047

Abstract

This study aims to investigate the sustainable premium on sustainable bonds issued by companies in Indonesia and the influence of the determinants of yield sustainable corporate bonds in Indonesia during 2020-2023. Amid its abundant issuance, the study found that there was no sustainable premium on sustainable corporate bonds in Indonesia during the period of the research. This happened due to the influence of market conditions during the pandemic Covid-19 and post pandemic Covid-19. However, the trend of yield to maturity’s movement of sustainable bonds annually tend to go down and flat which implies that risk of sustainable bond also declines as it is on post pandemic era. As for ESG risk, bond’s rating, GDP, inflation and bond type are having significant effect on yield to maturity of sustainable bonds, while modified duration and issue terms did not have significant effect on sustainable bonds’ yield
Penerapan Proof Without Word pada Berbagai Bidang Matematika Darmia, Darmia; Abdy, Muhammad; Rahmawati, Rahmawati
Journal of Health, Education, Economics, Science, and Technology (J-HEST) Vol. 1 No. 2 (2019): Journal of Health, Education, Economics, Science, and Technology
Publisher : Journal of Health, Education, Economics, Science, and Technology (J-HEST)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36339/

Abstract

Tujuan penelitian ini adalah untuk mengetahui bagaimana penggunaan proof without word dalam pembuktian secara deduktif pada bidang matematika. Teorema yang dibuktikan dalam penelitian ini meliputi bidang aritmatika, aljabar, geometri, dan trigonometri. Teorema tersebut dibuktikan dengan metode proof without word, yaitu pembuktian menggunakan gambar sesuai dengan bentuk teorema. Hasil yang diperoleh dalam penelitian proof without word pada bidang aritmetika didasarkan pada pembuktian sederhana yaitu jumlah kuadrat dan jumlah suku deret Fibonacci. Bidang aljabar didasarkan pada operasi penjumlahan dan pengurangan luas bangun. Bidang geometri, jumlah sudut vertex dari bintang dua dimensi bintang dan pembuktian teorema Pythagoras. Bidang trigonometri didasarkan pada identitas trigonometri. Hasil proof without word tersebut sebagai bukti alternatif pembuktian disamping pembuktian secara analitis.
Co-Authors Muhammad Abdy Rahmawati, Rahmawati Sung Suk Kim