<p>Companies, such as Vanguard, offer investors a&nbsp;cheaper passive/exchange-traded fund model. Kristoffer Tripplaar / Alamy Stock Photo</p>
<p>Companies, such as Vanguard, offer investors a&nbsp;cheaper passive/exchange-traded fund model. Kristoffer Tripplaar / Alamy Stock Photo</p>

Why the active money manager model is no longer viable