We show that a mutual fund’s stock selection skill can be decomposed into additional components that include liquidity-absorbing impatient trading and liquidity provision. We find that past performance predicts future performance better among funds trading in stocks affected more by information events: Past winners earn a risk-adjusted after-fee excess return of 35 basis points per month in the...

We show, through local estimates and simulation, that if one constrains simple graphs by their densities of edges and τ of triangles, then asymptotically (in the number of vertices) for over 95% of the possible range of those densities there is a welldefined typical graph, and it has a very simple structure: the vertices are decomposed into two subsets V1 and V2 of fixed relative size c and 1 −...

This paper provides a dynamic rational expectations equilibrium model in which investors have heterogeneous information and investment opportunities. Informed investors privately receive advance information about future earnings that is unrelated to current earnings. In response to good advance information, stock prices increase and informed investors act as trend chasers, increasing their inve...

For portfolio optimisation under proportional transaction costs, we provide a duality theory for general càdlàg price processes. In this setting, we prove the existence of a dual optimiser as well as a shadow price process in a generalised sense. This shadow price is defined via a “sandwiched” process consisting of a predictable and an optional strong supermartingale and pertains to all strateg...

Retirement flexibility and inability to borrow against future labor income can significantly affect optimal consumption and investment. With voluntary retirement, there exists an optimal wealth-to-wage ratio threshold for retirement and human capital correlates negatively with the stock market even when wages have zero or slightly positive market risk exposure. Consequently, investors optimally...

This paper examines the recent experience with insurance and other risk-financing instruments in developing countries in order to gain insights into the effectiveness of these instruments in reducing economic insecurity. Insurance and other risk financing strategies are viewed as efforts to recover from negative income shocks through risk pooling and transfer. Specific examples of public-privat...

Prior research debates focus on whether investors are smart enough to invest in funds that subsequently outperform. This paper documents a robust smart money effect among small fund investors who invest in the top performing funds, even after controlling for the momentum factor argued by Sapp and Tiwari (2004). I further explore the reason for the smart money effect and find that such outperfor...

——————————————————————————————————— We study optimal portfolio choice in a two-country model where assets represent claims on future consumption and facilitate trade in markets with imperfect credit. Assuming that foreign assets trade at a cost, agents hold relatively more domestic assets. Consequently, agents have larger claims to domestic over foreign consumption. Moreover, foreign assets tur...

Using the Hamilton-Jacobi-Bellman equation, we derive both a Keynes-Ramsey rule and a closed form solution for an optimal consumption-investment problem with labor income. The utility function is unbounded and uncertainty stems from a Poisson process. Our results can be derived because of the proofs presented in the accompanying paper by Sennewald (2006). Additional examples are given which hig...

This paper presents an overview of how single stock futures (SSF) have developed since their introduction in the United States. We present a number of reasons why individual investor interest in SSF may not have reached its potential. Individual investors should note SSF volumes are very low and implied interest rates indicate that SSF settlement prices often have little relation to their respe...