Publications

Our Research Reviewed By Experts

Hossein Rad, Rand KY Low, Joëlle Miffre, Robert Faff

Journal of Commodity Markets 28, 100259

Abstract: Our study lies at the intersection of the literature on the diversification benefits of commodity futures and the literature on style integration. It augments the traditional asset mix of investors with a long–short portfolio that integrates the styles that matter to the pricing of commodity futures. Treating the style-integrated portfolio of commodities as part of the strategic mix of investors is found to enhance out-of-sample performance and reduce crash risk compared to the alternatives considered thus far. The conclusion holds across traditional asset mix, portfolio allocation methods, integration strategies, and sub-periods. The diversification benefits of style integration also persist, albeit lower, in a long-only setting.

Norliza C Yahya, Siti SA Gan, Rand KY Low

Environment-Behaviour Proceedings Journal 7 (21), 57-63

Abstract: We examine the sustainable disclosure of IPO proceeds on 423 companies’ survival in the Malaysian market from 2000 to 2014. Using survival analysis, we find that the companies’ survival can be predicted by the proportion of IPO proceeds and their time frame, with debt repayment being the critical driver of companies’ survival. We provide empirical support for securities regulators to include strategic use and timeframe of utilization of IPO proceeds in their information disclosure requirements to protect investors’ interests and improve companies’ post-IPO survival.

Rand Low, Colette Southam, Matthew Winkler

View Paper

Abstract: In March 2020, Harriet Lee, chief executive officer and co-founder of CoinOrb, was in discussions with her fellow executives. The company needed additional capital to build the MVP (minimum viable product) for their cryptocurrency futures trading platform. A year before, Bitcoin had been valued at US$9,268; it ended 2019 at $3,669, and it was currently trading at $9,668. CoinOrb believed demand would be strong because their proposed exchange would appeal to investors who were hesitant to invest in Bitcoin because of its volatility but were interested in trading Bitcoin futures. Rather than raise additional equity, the CoinOrb founders created an initial coin offering (ICO), a token sale that blockchain start-ups used to raise funds. CoinOrb planned to launch their ICO shortly after launching their platform in late 2020, but they first needed to prepare their white paper. To do this, they would have to determine how to market their ICO to investors, the terms of the ICO, and what value to assign to the tokens.

Siti SA Gan, Norliza C Yahya, Rand KY Low

View Paper

Abstract: IPO information disclosures such as the strategic uses of IPO proceeds and the time frame to utilize them have the potential to signal the listing companies’ post-IPO survival. We examine the role of the IPO proceeds on 423 companies’ survival in the Malaysian market from 2000 to 2014. Using survival analysis, we find that 47% of companies in our sample facing difficulties in surviving upon the seventh year of listing, with a median survival time of 101 months. Our results show that the companies’ survival can be predicted by the proportion of IPO proceeds and their time frame, with debt repayment being the critical driver of companies’ survival. Higher intended use of IPO proceeds for growth opportunities and debt repayment lead to shorter survival, while a longer time frame to repay debt leads to longer post-IPO survival. Our findings provide empirical support for securities regulators to include both strategic use and timeframe of utilization of IPO proceeds in their information disclosure requirements to protect investors’ interests and improve companies’ post-IPO survival in an emerging markets setting.

Hossein Rad, Rand KY Low, Joëlle Miffre, Robert W Faff

View Paper

Abstract: The paper uses linear and nonlinear predictive models to study the linkage between a set of 128 macroeconomic and financial predictors and the risk premium of commodity futures contracts. The linear models use shrinkage methods based on naive averaging or principal components. The nonlinear models use feedforward deep neural networks (DNN) either as stand-alone or in conjunction with a long short-term memory network (LSTM). Out of the four specifications considered, the LSTM-DNN architecture best captures the risk premium, which underscores the need to estimate models that are both nonlinear and recurrent. The superior performance of the LSTM-DNN portfolio persists after accounting for transaction costs or illiquidity and is unrelated to previously-documented commodity risk factors.

Lachlan Michalski, Rand KY Low

View Paper

Abstract: We examine the inclusion of ESG variables, with commonly used financial variables into multi-class corporate credit rating prediction. Using random forests and extremely randomized trees, with mean decrease impurity, mean decrease accuracy and SHapley Additive exPlanations feature importance methods, prediction accuracy is consistent across methods for US and global firms. Environmental and social variables exhibit broad importance across US and global samples, particularly environment pillar score, environmental innovation score, resource use score, emissions score, and CSR strategy score. ESG variables become more pronounced following the financial crisis of 2007-2008, and are important across investment-grade and speculative-grade classes.

Hossein Rad, Rand KY Low, Joëlle Miffre, Robert Faff

Journal of Empirical Finance 58, 164-180

Abstract: The commodity pricing literature advocates the design of long-short portfolios based on equal weights. Relaxing the assumption of naive diversification, this article studies the benefits of applying sophisticated weighting schemes to the construction of long-short momentum and term structure portfolios. Weighting schemes based on risk minimization and risk timing are found to dominate the naive allocation and the weighting schemes based on utility maximization. This conclusion is not challenged by concerns pertaining to transaction costs, illiquidity, data mining, sub-periods, and model parameters and robustly persists when we consider as sorting signals hedging pressure, speculative pressure and, to a lower extent, basis-momentum.

Rand KY Low, Terry Marsh

Journal of Investing 29 (1), 18-30

Abstract: A reduction in cost of traditional financial intermediation was one of the main motivations cited by Satoshi Nakamoto in a 2008 proposal for “… an electronic payment system based on cryptographic proof instead of trust.” We begin here with some back-of-the-envelope calculations of these potential cost savings and benefits from the customer perspective. We then discuss the public blockchain ledger and various solutions to two important problems that are constraints on the public blockchain’s trustless consensus, viz. “mining” costs in proof-of-work and governance issues. We speculate that foreseeable institutional implementations will often involve integration of permissioned blockchains with public blockchains. We then discuss exchanges for trading cryptocurrencies, the second component of the crypto blockchains, and in particular their “teething problems,” along with the evolution of a subset of them into increasingly “industrial strength” entities. We suggest that with a more industrial strength infrastructure in place, self-executing smart contracts are virtually natural counterparts for more traditional passive investment products. We end with a discussion of Security Token Offerings (STOs) and the newer Initial Coin Offerings (ICOs): STOs are an interesting hybrid between the ICOs and traditional IPOs; they could conceivably pave the way to a long-time-coming “direct electronic IPO” market.

Rand KY Low, Te Li, Terry Marsh
 
 
Abstract: Order flow toxicity is the measure of a trader’s exposure to the risk that counterparties possess private information or other informational advantages. High levels of order flow toxicity can culminate in market makers providing liquidity at a loss or in the suboptimal execution of trades. From a regulatory perspective, high levels of toxicity can be harmful to overall market liquidity and precede precipitous drops in asset prices. The bulk volume–volume-synchronized probability of informed trading (BV–VPIN) model is one way of measuring the “toxicity” component of order flow, and it has been successfully applied in high-frequency trading environments. We apply the BV–VPIN to daily data from a range of international indexes in order to extend previous analyses of its properties. We find that a rise in BV–VPIN effectively foreshadows high levels of volatility in the equity indexes of several countries. If a BV–VPIN futures contract were to exist, we show that it would exhibit safe haven characteristics during market downturns. In particular, a simple active portfolio management strategy that times investments in equities (risk-free assets) when BV–VPIN levels are low (high) outperforms a buy-and-hold strategy. Thus, we find support for the application of BV–VPIN in international equity markets as a risk monitoring and management tool for portfolio managers and regulators.
Necmi K Avkiran, Christian M Ringle, Rand KY Low
 
Journal of Risk 20 (5), 83-155
 
Abstract: Regulators need a method that is versatile, easy to use and can handle complex path models with latent (not directly observable) variables. In a first application of partial least squares structural equation modeling (PLS-SEM) in financial stress testing, we demonstrate how PLS-SEM can be used to explain the transmission of systemic risk. We model this transmission of systemic risk from shadow banking to the regulated banking sector by a set of indicators (directly observable variables) that are sources of systemic risk in shadow banking and consequences of systemic risk measured in the regulated banking sector. Procedures for predictive model assessment using PLS-SEM are outlined in clear steps. Statistically significant results based on predictive modeling indicate that around 75% of the variation in systemic risk in the regulated banking sector can be explained by microlevel and macrolevel linkages that can be traced to shadow banking (we use partially simulated data). The finding that microlevel linkages have a greater impact on the contagion of systemic risk highlights the type of significant insight that can be generated through PLS-SEM. Regulators can use PLS-SEM to monitor the transmission of systemic risk, and the demonstrated skills can be transferred to any topic with latent constructs.

Timothy Low, Rand KY Low, Jamie Alcock, Robert Faff and Timothy Brailsford

Journal of Banking & Finance

Abstract: In the context of managing downside correlations, we examine the use of multi-dimensional elliptical and asymmetric copula models to forecast returns for portfolios with 3–12 constituents. Our analysis assumes that investors have no short-sales constraints and a utility function characterized by the minimization of Conditional Value-at-Risk (CVaR). We examine the efficient frontiers produced by each model and focus on comparing two methods for incorporating scalable asymmetric dependence structures across asset returns using the Archimedean Clayton copula in an out-of-sample, long-run multi-period setting. For portfolios of higher dimensions, we find that modeling asymmetries within the marginals and the dependence structure with the Clayton canonical vine copula (CVC) consistently produces the highest-ranked outcomes across a range of statistical and economic metrics when compared to other models incorporating elliptical or symmetric dependence structures. Accordingly, we conclude that CVC copulas are ‘worth it’ when managing larger portfolios.

Hossein Rad, Rand KY Low, Robert W Faff
 
Quantitative Finance 16 (10), 1541-1558
 
Abstract: We perform an extensive and robust study of the performance of three different pairs trading strategies—the distance, cointegration and copula methods—on the entire US equity market from 1962 to 2014 with time-varying trading costs. For the cointegration and copula methods, we design a computationally efficient two-step pairs trading strategy. In terms of economic outcomes, the distance, cointegration and copula methods show a mean monthly excess return of 91, 85 and 43 bps (38, 33 and 5 bps) before transaction costs (after transaction costs), respectively. In terms of continued profitability, from 2009, the frequency of trading opportunities via the distance and cointegration methods is reduced considerably, whereas this frequency remains stable for the copula method. Further, the copula method shows better performance for its unconverged trades compared to those of the other methods. While the liquidity factor is negatively correlated to all strategies’ returns, we find no evidence of their correlation to market excess returns. All strategies show positive and significant alphas after accounting for various risk-factors. We also find that in addition to all strategies performing better during periods of significant volatility, the cointegration method is the superior strategy during turbulent market conditions.
Rand KY Low, Yiran Yao, Robert Faff
 
 
Abstract: Several studies explore the use of gold and other precious metals for protecting investors’ wealth during periods of market turmoil. However, alternative investments, although increasing in popularity, still remain unfamiliar to the majority of investors. We explore the safe haven and hedging properties of diamonds versus precious metals in an international study to evaluate diamonds as a viable investment alternative. Furthermore, we compare the performance between the returns of physical diamonds and diamond indices. Our analysis indicates superior performance by precious metals compared to diamonds. However, investors enjoy greater benefit from directly investing in physical diamonds rather than diamond indices. For investors looking to protect their assets against highly volatile market conditions, precious metals remain a better option. Investors should continue to keep abreast of developments with the evolution of the diamond investments industry and physical diamonds can be included in a portfolio for their downside diversification potential.
Rand KY Low, Robert W Faff, Kjersti Aas
 
 
Abstract: Why do mean–variance (MV) models perform so poorly? In searching for an answer to this question, we estimate expected returns by sampling from a multivariate probability model that explicitly incorporates distributional asymmetries. Specifically, our empirical analysis shows that an application of copulas using marginal models that incorporate dynamic features such as autoregression, volatility clustering, and skewness to reduce estimation error in comparison to historical sampling windows. Using these copula-based models, we find that several MV-based rules exhibit statistically significant and superior performance improvements even after accounting for transaction costs. However, we find that outperforming the naïve equally-weighted (1/N) strategy after accounting for transactions costs still remains an elusive task.
Rand KY Low, Enoch Tan
 
 
Abstract: We evaluate the extent to which sell-side equity analysts can facilitate market efficiency when there is increasing uncertainty about a stock’s future value. The prevalence of the 52-week-high momentum anomaly, that can be largely attributed to information uncertainty, provides a setting for examining the value and timing of analysts’ earnings forecast revisions. Our study finds that analysts can provide value-relevant signals to investors by picking up indicators of momentum. The ability to identify under or over-valued stocks suggests that analysts are important information intermediaries in the price-continuation momentum effect. However, we also observe pervasive asymmetric reaction to good and bad news throughout our study that is consistent with incentive-driven reporting and optimistic biases. Nevertheless, analysts’ forecast revisions are informative at different stages to re-establish stock prices back to their fundamental valuation.
Jacquelyn E Humphrey, Karen L Benson, Rand KY Low, Wei-Lun Lee
 
 
Abstract: Finance theory and recent literature suggest that investors should diversify their retirement savings across a number of funds. However, the Australian government encourages investors to consolidate retirement savings into just one fund. Using a number of optimization techniques, we investigate which of these two actions would result in the best outcome for investors in terms of risk and return. We find that in the majority of cases investors would be better off not diversifying their holdings; mainly because superannuation funds cannot be short sold. Consolidation therefore does appear to be the optimal strategy for the average superannuation investor.
Rand KY Low, Jamie Alcock, Timothy Brailsford, Robert W Faff
 
 
Abstract: In the context of managing downside correlations, we examine the use of multi-dimensional elliptical and asymmetric copula models to forecast returns for portfolios with 3–12 constituents. Our analysis assumes that investors have no short-sales constraints and a utility function characterized by the minimization of Conditional Value-at-Risk (CVaR). We examine the efficient frontiers produced by each model and focus on comparing two methods for incorporating scalable asymmetric dependence structures across asset returns using the Archimedean Clayton copula in an out-of-sample, long-run multi-period setting. For portfolios of higher dimensions, we find that modeling asymmetries within the marginals and the dependence structure with the Clayton canonical vine copula (CVC) consistently produces the highest-ranked outcomes across a range of statistical and economic metrics when compared to other models incorporating elliptical or symmetric dependence structures. Accordingly, we conclude that CVC copulas are ‘worth it’ when managing larger portfolios.

Discover Our Interactive dashboards and Predictive models

we help companies understand their Data

Let's have a chat