This paper investigates the dynamic tail dependence risk between BRICS economies and world energy market, in context of COVID-19 financial crisis 2020, order to determine optimal investment decisions based on metrics. For this purpose, we employ a combination novel statistical techniques, including Vector Autoregressive (VAR), Markov-switching GJR-GARCH, vine copula methods. Using data set cons...

Portfolio optimisation aims to efficiently find optimal proportions of portfolio assets, given certain constraints, and has been well-studied. While ascertains asset combinations most suited investor requirements, numerous real-world problems impact its simplicity, e.g., preferences. Trading restrictions are also commonly faced must be met. However, in adding constraints Markowitz’s basic mean-...

In today's rapid development of financial integration and economic globalization, my country's insurance companies are faced with a large number complex types risks. At the same time, industry occupies position that cannot be ignored in field. Its response to risks directly affects entire Therefore, it is important study internal relationship between by country how reduce overall risk industry....