This article analyzes optimal nonlinear portfolio management contracts. We consider a setting in which the investor faces moral hazard with respect to the effort and risk choices of the portfolio manager. The employment contract promises the manager: (i) a fixed payment, (ii) a proportional...

We provide novel evidence on the role of ambiguity aversion in determining the response of mutual fund investors to fund performance. Our analysis is motivated by theoretical models of decision making by ambiguity-averse investors. A key implication of the models is that when investors face...

This study explores optimal portfolio management contracts in the context of ‘opaque' portfolios invested in illiquid or privately held assets. We identify shortcomings of linear contracts in this context and demonstrate that the second-best optimal contract features a convex component. The...

We study the impact of the tournament-like competition in the mutual fund industry by examining the Active Share choices of funds. Funds with relatively poor performance by the end of the third quarter in a calendar year tend to increase their Active Share during the last quarter. The increase...

This paper analyzes optimal non-linear portfolio management contracts. We consider a setting where the investor faces moral hazard with respect to the effort and risk choices of the portfolio manager. The manager's employment contract promises her: (a) a fixed payment, (b) a proportional...

Investor concerns surrounding the COVID-19 pandemic triggered large fund outflows from prime institutional money market funds (PIFs) during March 2020. This episode highlights the continued susceptibility of such funds to financial market stress. In this paper we present novel evidence on the...