Below is the detail of RCG and Gillote Moygor on $28$Jan$-2005.$ The event window ranges from Tho divs betore the event $($T$-2)$ event day $(T-0)$ to three days afler the event $(T-+3).$ Calculate

Expoctai returns $($Normal rohurns$)$ using Market model $($NR$),$

Abnormal Recums $($AR$)$ and

Commulative abnormal $($CAR$)$

Explain your main findings in the context of information leakage and market efliciency.

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