Financial market data are abundant with outliers, and the search for an appropriate extreme value theory (EVT) approach to apply is an endless debate in the statistics of extremes research. This paper uses EVT methods to model the five-year daily all-share total return index (ALSTRI) and the...

The accelerated growth and interconnectedness of financial institutions and movement towards products and activities outside the regulatory purview have been met with huge concerns. South Africa is one of the emerging economies that this conundrum has beset. Any potential instability in the...

Pension funds are increasingly relying on swaps to hedge the long-term nature of their liabilities. While the use of swaps reduces pension funds' exposure to interest rate risk, it exposes pension funds to liquidity risk because of potential margin calls. We study these effects using unique data...

In investment portfolio management, every investor generally wishes to obtain the highest possible expected returns for a given level of risk, as represented by the volatility of the returns of the investor’s portfolio. Therefore, in order to make rational capital allocation decisions, the...

We define and develop an approach for risk budgeting allocation -- a risk diversification portfolio strategy -- where risk is measured using a dynamic time-consistent risk measure. For this, we introduce a notion of dynamic risk contributions that generalise the classical Euler contributions and...

Heavy tails and volatility clusters are both stylized facts of financial returns that destabilize markets. The former are extreme events by definition and the latter can accelerate adverse market developments. This work disentangles the two sources and examines which one does the greater damage...