The variance risk premium (VRP) reflects the degree of risk aversion of investors and the overestimation of the probability of extreme losses. We examine a variety of variance risk premiums, including both the upside and downside variance risk premiums, in the Chinese stock market. We find that...

Using the generalized extreme value theory to characterize tail distributions, we address liqui- dation, leverage, and optimal margins for bitcoin long and short futures positions. The empirical analysis of perpetual bitcoin futures on BitMEX shows that (1) daily forced liquidations to out-...

As global financial integration deepens, shocks from a local market can generate global spillover effects more easily. Historical episodes, such as the 2008 financial crisis and the COVID-19 pandemic show that the connectedness of financial markets is closely related to global systemic risks....

In this paper, an optimal portfolio selection problem is formulated as a minimax problem in which tax and dividend are associated with transactions. The corresponding optimal portfolio is derived respectively in the market with and without riskless asset. Furthermore, the relation and main...

In this paper, we consider a more general form of weak vector variational inequalities and prove some results on the existence of solutions of our new class of weak vector variational inequalities in the setting of Hausdorff topological vector topological space. We also discuss the connectedness...

In this paper, an optimal portfolio selection problem is formulated as a minimax problem in which tax and dividend are associated with transactions. The corresponding optimal portfolio is derived respectively in the market with and without riskless asset. Furthermore, the relation and main...