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The exponentially weighted moving average (EWMA) and the generalized autoregressive conditional heteroscedasticity (GARCH) are two well-recognized volatility models. Suppose we have a EWMA and a GARCH (1, 1). Both have the same parameter attached on the , and . Further assume that is currently above the long-run variance, which model will forecast a lower day volatility?
A
The EWMA model.
B
The GARCH (1, 1) model.
C
The forecast is the same for both models.
D
Further information is required in order to make the comparison.