What is the sames-Stein etstrnator used for? For asset class return and risk inputs intlo as mean variance asset dilocation modet To estmato volalify for nguty copoots To erviuate the skill of ar oqaty maramee to provide untiasod currency forecasts QUESTION 18 pras thorg? Drhamk ascit alocation Elrategic Asset allocalicen tarkeal astel afoxivion Portiobos insulanca Of the kat bolow, what is the most importach for long tenm clocil robondion? Corerruriciohin and Clent Servico Strong Furformanco Maverionio Hineg Famois Protfelio Managyars