Question: Please would you help me? It is quite important to emphasize the dierence among the concepts of i.i.d., m.d.s. and White noise in time series

Please would you help me?

It is quite important to emphasize the dierence among the concepts of i.i.d., m.d.s. and White noise in time series econometrics. (a) Assume {gt} is a martingale dierence sequence (m.d.s.) with E (y?) : 02

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