Hello im going to do a study on a listed company who adopted the IFRS code or a listed company which had to adopt the IFRS as the country adopted it , i basically want to know

1. which LISTED company i should go for and which country like for example CANADA adopted it 5 yrs ago

2. A small road map on how i can find out the impact IFRS had on the company financials before and after?

Thanks a lot