AN ANALYSIS OF TIME TO MATURITY AND VOLUME EFFECTS 0^ FUTURES RETURNS VOLATILITY: AGRICULTURAL COMMODITYFUTURES MARKETS

摘要

This paper analyses the volatility dynamics of commodity futures markets and investigates the Samuelson maturity effect hypothesis. Price volatility is primary concern for different stake holders Tn derivatives and underlying spot markets. This studyattempts to examine the Samuelson maturity effect hypothesis on selected agricultural commodity futures markets. The study on price volatility has been carried out on two aspects. Samuelson hypothesis (1965) is the first study to investigate the variation in futures prices when the futures contract reaches the maturity. He propounded that volatility in the futures prices is the function of time to maturity for different contracts. In this paper, we have examined the Samuelson maturity effect hypothesison selected agriculture commodities futures contracts. The GARCH methodology has been used to test the maturity and volume effects on futures returns volatility. This study concludes that time to maturity is insignificant and trading volume is a significant dominant in futures returns volatility on selected agricultural commodity future contracts. The findings would be useful for market participants to develop different trading strategies for risk minimization. The study also provides some suggestive conclusions for setting up margins when contracts are near to maturity.