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This paper examines the relationship between trading activity and returns volatility in white maize futures listed on … the South African Futures Exchange (SAFEX) and investigates the impact of speculative activity on volatility. Returns … volatility is estimated using a GARCH (1,1) model. Trading activity changes are observed by computing two negatively correlated …
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and volatility spillovers between Nigeria Naira/US Dollar Bureau De Change (BDC) exchange rate and interbank call rate … is utilized to investigate shocks and volatility spillover of the rates. The estimated DCC-GARCH (1, 1) reveals that …, 1) model. Furthermore, the effects of news (shocks spillover) are bi-directional across the markets. However, volatility …
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