TY - JOUR T1 - Commentary: Passive Investing and Market Efficiency JF - The Journal of Investing SP - 7 LP - 9 DO - 10.3905/joi.2017.26.3.007 VL - 26 IS - 3 AU - Bradford Cornell Y1 - 2017/08/31 UR - https://pm-research.com/content/26/3/7.abstract N2 - In a stock market dominated by passive investors, an interesting question arises as to how the equilibrium level of market efficiency will be maintained. This short article argues that the critical agents in this regard must be the companies that issue the shares, not active investment managers.TOPICS: Security analysis and valuation, passive strategies ER -