The merging and sustenance of the economies of different countries require the integration of several aspects of those economies, including price levels and money market activities. The member countries within the West African Monetary Zone have resolved to introduce a single currency, the ECO....

This study employs the TVP-VAR approach to capture the degree of interdependencies and contagion among sixteen implied volatilities. The 16 daily implied volatility indices comprise the implied volatility from various financial assets, such as conventional equities, commodities, and currencies,...