9. What is stock buyback? (stock repurchases.) 10. What is in common between dividends and stock repurchases? 11. From 1973 - 1982, there are a lot of share repurchases in the corporate world. The lecture only mentioned the observation. Please google why corporation choose repurchases over paying dividends. 12. What is dilution? Is there any dilution when public company issue new equities (seasonal offering)