Prof. Owain ap GwilymABDULMAJEED KHALAD SAAD ALMAQRN2022-06-042022-05-032022-06-04110843https://drepo.sdl.edu.sa/handle/20.500.14154/66332My dissertation was divided into four different chapters. The chapters were: Behavioural finance, Market microstructure and high frequency trading, Dividends in corporate finance and investment, and The role of rating .agencies in financial markets43enThesis