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All Journal Jurnal Ilmu Sosial dan Humaniora International Journal of Social Science and Business Akuntansi'45 Jurnal Pengabdian Masyarakat STIE Surakarta (DIMASETA)
Stefan, Yonatan Alvin
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Humanities Economics, Econometrics & Finance Environmental Science Social Sciences

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The Influence of Exchange Rate, World Oil Price, and BI Rate on Airline Companie’s Return in Indonesian Stock Market Stefan, Yonatan Alvin; Robiyanto, Robiyanto
International Journal of Social Science and Business Vol 3, No 3 (2019)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (506.549 KB) | DOI: 10.23887/ijssb.v3i3.21059

Abstract

In an effort to support the economic growth of Indonesia, an infrastructure development is carried out to achieve the national development. It brings positive influences on transportation companies in Indonesia. Many companies list their shares to Indonesia Stock Exchange, including PT. Garuda Indonesia (Persero) Tbk (IDX code: GIAA) and PT. AirAsia Indonesia Tbk (IDX code: CMPP), aiming to have additional capital sources. The two companies can be such a reference for investors to make investments, but they still need to consider the macro factors attached. This study examines the influende of exchange rate, world oil price, and Bank Indonesia (BI) rates on the GIAA and CMPP stock returns. The analysis technique used was Generalize Autoregressive Conditional Heteroscedasticity (GARCH) and daily data starting from their IPO to February 28th, 2019. The results showed that the exchange rate negatively affected the GIAA and CMPP stock returns, while the world oil prices only negatively affected the CMPP stock return, and the BI rates only negatively affected the GIAA stock return. In general, the investors are suggested not to buy the GIAA and CMPP shares when the IDR exchange rate weakens against the US dollar exchange rate.
KORELASI DINAMIS PASAR SAHAM ASEAN DENGAN NILAI TUKAR DOLLAR AMERIKA SERIKAT (USD) DI ERA DONALD TRUMP Stefan, Yonatan Alvin; Robiyanto, Robiyanto
Jurnal Ilmu Sosial dan Humaniora Vol 8, No 2 (2019)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jish-undiksha.v8i2.21380

Abstract

Optimalisasi Instagram sebagai Strategi Pemasaran Digital untuk UMKM Kepepes Febisatria, Andhi; Putri, Ainin Syukuria; Stefan, Yonatan Alvin
Jurnal Pengabdian Masyarakat STIE Surakarta Vol 4 No 1 (2025): Juni 2025
Publisher : Sekolah Tinggi Ilmu Ekonomi Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56456/dimaseta.v4i1.164

Abstract

Perkembangan teknologi digital telah mendorong pelaku Usaha Mikro, Kecil, dan Menengah (UMKM) untuk mengadopsi strategi pemasaran yang lebih modern dan adaptif. Salah satu pendekatan yang relevan adalah pemanfaatan media sosial sebagai sarana pemasaran digital, khususnya platform Instagram yang memiliki daya tarik visual dan jangkauan luas. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan kapasitas pelaku UMKM “Kepepes”, sebuah usaha kuliner berbasis pepes ikan, dalam mengelola akun Instagram sebagai alat pemasaran produk. Metode pelaksanaan kegiatan berupa pelatihan langsung kepada pemilik UMKM. Materi pelatihan meliputi perencanaan konten, teknik copywriting, manajemen unggahan, dan analisis insight Instagram. Hasil pelatihan menunjukkan adanya peningkatan pemahaman dan keterampilan peserta dalam membuat konten yang menarik, serta menyusun strategi komunikasi pemasaran digital yang lebih terarah. Peserta juga mampu menyusun kalender konten dan memahami waktu optimal untuk melakukan promosi di media sosial. Dengan pelatihan ini, UMKM diharapkan dapat meningkatkan jangkauan pasar dan daya saingnya melalui optimalisasi media sosial. Kegiatan ini membuktikan bahwa edukasi digital kepada pelaku UMKM sangat penting untuk mendorong pertumbuhan usaha yang berkelanjutan di era transformasi digital.
Pengaruh Efisiensi Biaya Proyek terhadap Profitabilitas pada Perusahaan Konstruksi (Studi Kasus Periode 2021-2023) Stefan, Yonatan Alvin
AKUNTANSI 45 Vol. 6 No. 1 (2025): Jurnal Ilmiah Akuntansi
Publisher : Fakultas Ekonomi Program Studi Akuntansi Universitas 45 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30640/akuntansi45.v6i1.4092

Abstract

The construction industry in Indonesia plays an important role in driving national economic growth, but also faces major challenges in managing efficient project costs to maintain profitability levels. This study aims to examine the effect of project cost efficiency on the profitability of construction companies, using Return on Assets (ROA) as an indicator of financial performance. This study uses a quantitative approach with secondary data taken from the annual financial reports of construction companies listed on the Indonesia Stock Exchange (IDX) for the period 2021–2023. The analysis technique used is spearman correlation. The results of the study show that the Cost of Goods Sold to Revenue (COGS to Revenue) ratio has a significant negative effect on ROA, and Asset Turnover (ATO) also has a significant negative effect on ROA. Meanwhile, the Operating Expense Ratio variable shows a negative effect on ROA. These findings confirm that project cost efficiency and optimization of asset use play an important role in increasing the profitability of construction companies. The practical implication of this study is the need for a more effective cost and asset management strategy to maintain financial performance amidst the challenges of the construction industry.
Co-Authors Ainin Syukuria Putri, Ainin Syukuria Febisatria, Andhi Robiyanto Robiyanto Robiyanto, Robiyanto