Judul: Analisis Faktor yang Memengaruhi Pergerakan Harga Indonesia Stock Exchange Industrial Classification
Abstrak: Indonesia Stock Exchange Industrial Classification (IDX-IC) an investment benchmark for investors to see sectoral stock movements are expected to move stable to increase the amount of investment that can help increase the Company’s Capital Stock to maximize the quantity and quality of production and ultimately encourage Indonesia’s economic growth. However, uncertain economic conditions are often a factor in unstable stock price movements, such as fluctuations in the exchange rate, which illustrates the strenght of a country’s economy, world gold price as an alternative investment when the stock market is volatile, world crude oil an its derivative products which are still inouts and driving operations companies. The Covid-19 case caused concern in the community, so it attracted investment in the stock market. This study aims to analyze (1) the factors that influence the IDX-IC price movement, (2) the impact of factor shocks that affect the movements of the IDX-IC sectoral stock price indeks in the coming period, (3) the contribution of factors in influencing the movement of the IDX-IC sectoral stock price index in coming period, and (4) structural breaks in the IDX-IC sectoral stock price index. The method to analyze the influence of factors that influence IDX-IC price movements is Vector Autoregression (VAR)/ Vector Error Correction Model (VECM). The method to determine the impact of shocks in the future uses the Impulse Response Function (IRF) test. The variable contribution is analyzed by the Forecast Error Variance Decomposition (FEVD) test. The method to identify the presence of structural breaks in the data uses the CUSUM tes tand the F-test. The results of the analysis show that the exchange rate has a positive effect on the movement of the stock price index in the industrial sector and the transportation and logistics sector. The world gold price has a negative effect on the movement of stock price indexes in the energy, industrial, health and financial sectors. Positive confirmed cases of Covid-19 have a negative effect on stock price movements in the transportation and logistics sectors. The factor variable shocks were responded to differently by each sector. However, the shock response was the same in the 2nd period, then returned to the equilibrium point in the 5th period and was stable until the 10th period. IDX-IC's contribution is more dominant than other factors in influencing its movement in the subsequent 10 periods, followed by the contribution of world gold prices, exchange rates, Covid-19 cases and world crude oil prices. The structural break occurred from June 4, 2021, to October 1, 2021, due to restrictions on public mobility and the high stock price deemed unreasonable. Based on the results of the study, there are several recommendations. First, paying attention to the optimization of monetary policy has implications for the stability of the price index in the industrial sector and the transportation and logistics sector by maintaining the stability of interest rates and inflation closely related to the exchange rate. Second, the decision of investors to make safe havens can be one of the focuses of the government to control the stock market when there is turmoil. Government
Keyword: IDX-IC, World Gold Prices, World Crude Oil Prices, Covid-19 Cases, Exchange Rates

Judul: Indonesian Stock Market Reaction to the Dynamics of Global Economic Policy Uncertainty
Abstrak: Guncangan ketidakpastian dunia memberikan kontraksi mendalam bagi pemangku kebijakan dalam menciptakan iklim perekonomian kondusif, khususnya dalam sektor pendanaan dan investasi saham. Selain itu, kondisi makroekonomi juga turut memberikan kontribusi dalam volatilitas nilai saham di Indonesia, sehingga penelitian ini dapat difokuskan dalam mengkaji pengaruh jangka panjang dan pendek dari Indeks Global Economics Policy Uncertainty (GEPU) dan variabel makroekonomi Indonesia terhadap Indeks Harga Saham Gabungan (IHSG) pada periode bulan Januari 2000 hingga Desember 2023 dengan menggunakan metode ARDL-ECM. Hasil penelitian menunjukan bahwa dalam jangka pendek kenaikan dari GEPU, suku bunga Bank Indonesia, nilai tukar riil efektif, Indeks Harga Konsumen (IHK), dan harga minyak dunia berpengaruh signifikan terhadap IHSG. Pada jangka panjang, hanya GEPU, IHK, dan indeks harga minyak global yang berpengaruh signifikan terhadap IHSG., The shock of world uncertainty has provided a deep contraction for policy makers in creating a conducive economic climate, especially in the funding and stock investment sectors. Apart from that, macroeconomic conditions also contribute to the volatility of stock values in Indonesia, so this research can be focused on examining the long and short term influence of the Global Economics Policy Uncertainty Index (GEPU) and Indonesian macroeconomic variables on the Composite Stock Price Index (IHSG) in the period January 2000 to December 2023 using the ARDL-ECM method. The research results show that in the short term the increase in GEPU, Bank Indonesia interest rates, real effective exchange rate, Consumer Price Index (CPI), and world oil prices have a significant effect on the IHSG. In the long term, only GEPU, CPI and the global oil price index have a significant effect on the IHSG.
Keyword: ARDL, ECM, GEPU, IHSG, Variabel Makroekonomi

Judul: Karakteristik Anatomi Skelet Kepala Buaya senyulong (Tomistoma schlegelii).
Abstrak: Buaya sepit atau senyulong (Tomistoma schlegelii) merupakan jenis buaya asli Indonesia yang berhabitat di sungai-sungai Sumatera, Kalimantan, dan juga pedalaman Sulawesi. Salah satu ciri khas buaya senyulong adalah bentuk moncong yang runcing dan sempit, namun hingga saat ini informasi mengenai struktur skelet kepala buaya senyulong sangat terbatas. Penelitian ini bertujuan untuk mempelajari karakteristik anatomi skelet kepala buaya senyulong yang dikatikan dengan fungsi dan perilakunya. Penelitian dilakukan secara eksploratif dengan melakukan pengamatan, pencatatan, dan pengambilan gambar dari skelet kepala buaya senyulong. Skelet kepala berukuran panjang 70 cm, lebar 29 cm, dan tingggi 17 cm dengan permukaan kasar pada os nasale, os frontale, os maxilla, os mandibula, os lacrimale, os jugale. Jumlah gigi pada buaya ini sebanyak 78 buah, terdiri dari 4 buah gigi premaxila, 16 buah gigi maxila, dan 19 buah gigi mandibula. Pada regio orbitalis ditemukan dua pasang fenestrae temporales yang berkembang baik. Fenestra supratemporale merupakan lubang oval yang membentang di sepanjang os parietale. Fenestra infratemporale berbentuk segitiga dan dibatasi oleh os squamosum, os postorbitale, os jugulare, dan os quadratum. Os mandibula hewan ini mempunyai symphysis mandibularis yang panjang yaitu garis yang melintang di corpus mandibulae. Secara fungsional ukuran symphysis mandibularis berkaitan dengan adaptasi hewan terhadap diet makan.
Keyword: kepala, moncong, Tomistoma schlegelii