portfolio theory without recourse to market imperfections. It also demonstrates that “Value-at-Risk” portfolio management rules … optimal to sell many higher-risk assets when a shock to one asset occurs …

The objective of this paper is to analyze the volatility spillover effects in the Moroccan interbank sector before and … outbreak on the transmission of volatility among Moroccan banks listed in the Moroccan stock market. The data sample frequency … volatility spillover index increased during the pandemic crisis. We also found varying degrees of interdependence and spillover …

volatility spillovers during global financial crisis and tranquil periods. The resulting market interconnectedness is depicted by … between markets and somewhat weaker temporal effects with regard to the US equity market - volatility spillovers decrease when … markets are characterized by greater temporal proximity. Volatility spillovers also present a high degree of …