The retreat of the ice around the freezing waters of the Arctic Ocean is opening new waterways where shipping activity could transport commodities between continents. One of the essential products is natural gas - LNG, which is transported in large tankers from exporters to importers. This study...

With the growing need for sustainable energy solutions in urban areas, a strategic integration of energy supply, public transport modernization, and energy demand reduction for residential and commercial buildings has become crucial. While numerous efforts have showcased technological...

Stock investment is one option of investment choice with risks. Investors can reduce their risk by combining several stocks and then forming a portfolio. One method to form an optimal portfolio is by using the Constant Correlation Model (CCM) method. The CCM method focuses on the correlation...