Portfolio performance in 401(k) plans depends on both the investment menu made available by plan sponsors and participants portfolio decisions. We use a unique dataset of nearly 1 million participants in one thousand pension plans to identify key portfolio inefficiencies in 401(k) plans,...

As the level of retirement-related assets has grown, so too has public and private interest in so-called Socially Responsible Investment (SRI), an investment strategy that employs criteria other than the usual financial risk and return factors when selecting firms in which to invest. This study...