Since 2008, a massive shift has occurred from active towards passive investment strategies. The passive index fund industry is dominated by BlackRock, Vanguard, and State Street, which we call the ‘Big Three'. We comprehensively map the ownership of the Big Three in the United States and find...

Fundamental change is happening in asset management – the shift from actively managed funds to index funds. This money mass migration into index funds has far-reaching consequences, because it leads to a concentration of corporate ownership in the hands of the ‘Big Three' asset managers. We...