Article Per Year (5 Year)
p-Index From 2021 - 2026
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This Author published in this journals
All Journal Binus Business Review Business Economic, Communication, and Social Sciences Journal (BECOSS)
Rahmat Siauwijaya
Bina Nusantara University
Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Industrial & Manufacturing Engineering

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The Evaluation of Bank Efficiency in Post Merger Stage in Banking Industry Rahmat Siauwijaya
Binus Business Review Vol. 8 No. 2 (2017): Binus Business Review
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/bbr.v8i2.1452

Abstract

This research evaluated the technical efficiency of the banks before and after the merger. This research observed 15 banks which involve in merger activities. This research used the Data Envelopment Analysis (DEA) method with variables of returns to scale (VRS) and input orientation. Analysis of variance (ANOVA) was also applied to test the difference between the technical efficiency in pre- and post-merger activities. This research finds that only six banks are efficient after the merger. Furthermore, four banks have a better technical efficiency than before, andfive banks have lower technical efficiency after the merger.
Bitcoin, Gold, the Indonesian Stock Market, and Exchange Rate: GARCH Volatility Analysis Rahmat Siauwijaya; Dewi Sanjung
Business Economic, Communication, and Social Sciences Journal (BECOSS) Vol. 4 No. 3 (2022): BECOSS
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/becossjournal.v4i3.8671

Abstract

Bitcoin has gained popularity as an investment asset because of its similarity to gold, which sparked the idea that bitcoin can be used as a hedging instrument to the fiat currency exchange rate. This paper aims to analyze bitcoin's volatility and return to gauge its feasibility as an investment asset, and hedging tool for the USD-IDR exchange rate with the GARCH and EGARCH models. With data on the daily closing price of bitcoin, gold, IDX composite index, and USD-IDR exchange rate from January 1, 2016, to December 31, 2020, the study attempts to find factors affecting bitcoin returns with the independent variables of bitcoin’s price, gold, and USD-IDR exchange rate by estimating their correlation. Following the analysis, this study shows that the volatility of USD-IDR exchange rates negatively influences bitcoin returns, making it a relatively safe investment asset. Additionally, the study found that bitcoin returns are not affected by the variables of gold price and the IDX composite index. However, we found that the USD-IDR exchange rate significantly affects bitcoin returns, while gold price and bitcoin’s price does not significantly affect bitcoin returns. Further, the analysis found that bitcoin is unsuitable for hedging due to its sensitivity to asymmetric shocks.
Co-Authors Dewi Sanjung