???? ????? ?? ????? ??????? ???? ?? ??? ???? ???? ?? ???? ??????? ???? ?????, ??? ????? ?? ????? ???? ?? ???? ??????? ??? ????? ??? ?? ????? ?? ??? ?? ??????? ????? ????????? ?? ???????? ???? ???? ??? ???? ???? ????? ?? ???? ????? ??????? ????? ???? ??????? ?? ????? ???? ??? several aspects have an effect on why a stock (or Yet another asset) mig