Memory in returns and volatilities of futures' contracts

Memory in Returns and Volatilities of Commodity Futures’ Contracts

Various authors claim to have found evidence of stochastic long memory behavior in futures’ contract returns using the Hurst statistic. This paper reexamines futures’ returns for evidence of persistent behavior using a biased-corrected version of the Hurst statistic and an estimate of the long-memory parameter based on the process spectrum. Results based on these new methods provide no evidence...

Memory in Returns and Volatilities of Futures’ Contracts

Various authors claim to have found evidence of stochastic long-memory behavior in futures’ contract returns using the Hurst statistic. This paper reexamines futures’ returns for evidence of persistent behavior using a biased-corrected version of the Hurst statistic, a nonparametric spectral test, and a spectral-regression estimate of the longmemory parameter. Results based on these new methods...

Long-memory in volatilities of German stock returns

We show that there is strong evidence of long-range dependence in the volatilities of several German stock returns. This will be done by estimating the memory parameter of the absolute returns with classical log-periodogram regression as well as by employing the tapered periodogram. Both estimators give similar values for the memory parameter what indicates long-memory.

Sources of Variation in Holding Returns for Fed Funds Futures Contracts

This paper relates predictable gains from positions in fed funds futures contracts to violations of the expectations hypothesis of the term structure of interest rates. Although evidence for predictable gains from positions in short-horizon contracts is mixed, we find that gains in longer-horizon contracts can be well described using Markov switching models, with predictability associated with ...

Interactions Of Returns and Volatilities Among Different Sizes Of Stocks: A Survey In Tehran Stock Exchange