Articles

Volume 15, Number 2, 2017 Thomas J. O’Brien This paper illustrates optimal dynamic allocation in a traditional two-fund capital market model. As in previous literature, a mean-reverting market portfolio implies a “horizon effect” in typical investors’ allocations. For investors whose risk aversion is higher than the representative investor’s, the horizon effect becomes substantially larger in… Read more

Volume 15, Number 2, 2017  Bradley A. Jones This paper seeks to shed light on the systematic investment patterns of long-term asset owners. Based on a sample of representative portfolios (totaling $24 trillion) for global central banks, U.S. public and private pension funds, U.S. insurers and U.S. endowment funds, four main findings are established. First… Read more

Volume 15, No. 1, 2017 David H. Bailey, Jonathan M. Borwein and Marcos López de Prado In mathematical finance, backtest overfitting connotes the usage of historical market data to develop an investment strategy, where too many variations of the strategy are tried, relative to the amount of data available. Backtest overfitting is now thought to… Read more

Joshua Livnat, Gavin Smith and Martin Tarlie One of the most crucial decisions for investors and plan sponsors is the selection of funds among the thousands of available alternatives.We find that regardless of the initial criterion used to rank funds based on past performance, more diversified top funds outperform concentrated top funds in the subsequent… Read more

Volume 15, No. 1, 2017 Sonya Cates, Stephen Lawrence, Carla Penedo and Viktoriia Samatova Many investment professionals consider academic research instrumental in improving the quality of the investment process. However, it is hard to extract investment insights from the vast and rapidly expanding research corpus, which requires a large amount of time and human effort… Read more

Volume 15, No. 1, 2017 Andrew W. Lo Breakthroughs in computing hardware, software, telecommunications, and data analytics have transformed the financial industry, enabling a host of new products and services such as automated trading algorithms, crypto-currencies, mobile banking, crowdfunding, and robo-advisors. However, the unintended consequences of technology-leveraged finance include firesales, flash crashes, botched initial public… Read more

Volume 13, Number 2, Second Quarter 2015 Thomas S.Y. Ho and Sang Bin Lee This paper proposes an equity index contingent claim model. The model assumes that the equity broad-based market indices’stochastic movements are contingent to macroeconomic risk factors that are derived from Ho et al.’s (HPS, 2012, 2013) and Ho and Lee’s (HL, 2015b… Read more

Volume 13, No. 2, Second Quarter, 2015 Daniel Mantilla-García We solve the growth-rate optimal multiplier of a portfolio insurance strategy in the general case with a locally risky reserve asset and stochastic state variables. The level of the optimal time-varying multiplier turns out to be lower than the standard constant multiplier of Constant Proportion Portfolio… Read more

Volume 13, Number 2, Second Quarter 2015 Wai Mun Fong and Timothy Koh Traditional asset allocations such as the 60/40 portfolio of stocks/bonds are not as well diversified as many investors believe since almost all the portfolio’s returns are driven by the stock component. This paper examines a novel approach to strategic allocation by combining… Read more