Does increased hedging lead to decreased price efficiency? The case of VIX ETPs and VIX futures

We examine the impact of the introduction of VIX exchange‐traded products (ETPs) on the information content and pricing efficiency of VIX futures. We document that trades in VIX futures have become less informative and that pricing errors exhibit more persistence after the introduction of VIX ETPs. In addition, we observe that the price process of the VIX futures has become noisier over time. These findings suggest that the introduction of the VIX ETPs had a prominent effect on the properties and dynamics of the VIX futures.     

Biofuels technology development in Southern Africa

ABSTRACT

The benefits of biofuels depend on the feedstock, conversion pathway and local context. This paper assesses biofuels technology readiness and developments to provide foresight to biofuels development in Southern Africa. Efficient conversion pathways, coupled with biomass from waste or high-yielding energy crops, will reduce both the costs of biofuels production, and the environmental impacts. Compared to petroleum fuels, the current commercial biofuels (ethanol, biogas and biodiesel) typically offer carbon emission reductions of 30–50% but are marginally more expensive. The extent of biofuels market penetration will therefore be influenced by mandates (blending targets) and subsidies (green premium). Advanced biofuels promise greater efficiencies and carbon emission reductions at reduced cost but will require further research and development to reach commercialisation. If developed appropriately, biofuels can reduce carbon emissions and improve energy security, while enabling sustainable agriculture and improved natural resources management.     

Information disclosure quality: correlation versus precision

We investigate how a multidimensional disclosure quality (i.e., correlation and precision) determines an optimal information disclosure strategy. We find that, for an infinitely lived, unlevered firm with market perfection, a truth‐telling disclosure is optimal at increasing the expected firm value. However, for a finitely lived, levered firm in the presence of market imperfections (e.g., bankruptcy cost), the optimal disclosure quality depends negatively on the level of imperfections. Once we consider the agency problem, such dependence can become positive, thereby highlighting the importance of a proper managerial‐incentive scheme to align the information disclosure interests of managers and shareholders.     

Trading timing and the returns to trend-following

We document a negative impact of realistic trading timing on trend-following profits, across an international sample of equity indexes and stocks. The discount effect is substantial but reduces as trend signals become less accurate. The size of this trading timing bias is largely driven by the volatility of buy-and-hold returns and that of trend signals.     

The role of peer-to-peer voice in severe work environments: organisational facilitators and barriers

Encouraging and facilitating employee voice among frontline employees is important in organisations to draw out problems and issues that can potentially be addressed and mitigated by organisational policies and practices. Using Conservation of Resources theory, this study focuses on paramedics and the formal and informal voice mechanisms used to safeguard their well-being. We observe that paramedics are often unwilling to use formal support mechanisms, at least in the first instance immediately following exposure to a traumatic event, but they see informal peer-to-peer voice as critical in preventing resource loss and regaining resources for subsequent call-outs. We also found that without an awareness of the importance of this support mechanism, changes in work organisation can unintentionally and unknowingly limit their capacity to engage in this form of support. Losing peer-to-peer voice can lead to the build-up of stress that could otherwise be mitigated, resulting in diminished well-being.     

Benchmarking benchmarks: measuring characteristic selectivity using portfolio holdings data

This study proposes methodological adjustments to the widely adopted performance benchmarking methodology of Daniel et al. (1997 ) as a means of improving the precision of alpha measurement for active equity fund managers. We achieve this by considering the monthly updating of characteristic benchmarks and to ensure neutrality to the Standard & Poor's/Australian Stock Exchange 300 index. Applying this benchmark to a representative sample of active Australian equity funds and simulated passive portfolios that mimic fund manager‐style characteristics, we find statistically different and lower tracking error compared with using the standard characteristic benchmark methodology. We also find evidence that the modified benchmark statistically infers an alpha closer to zero compared with the standard benchmark methodology. Our findings suggest that improved specifications of characteristic benchmarks represent better methods in quantifying fund manager skill.     

Net share issues and the cross‐section of equity returns under a dividend imputation tax system

Despite considerable empirical evidence reporting a negative relationship between net share issuance and subsequent returns, it remains unresolved whether this anomaly is explained by risk or investor irrationality. This study examines the net share issuance anomaly using seasoned equity offerings before and after the introduction of an imputation tax system. We report robust evidence of a negative relationship between net share issuance and returns post‐imputation, but no relationship pre‐imputation. Our results provide evidence to support the international pervasiveness of the net share issuance anomaly, but more importantly suggest that this anomaly may be explained by risk.     

Pro‐Social or Pro‐Management? A Critique of the Conception of Employee Voice as a Pro‐Social Behaviour within Organizational Behaviour

For many years, the employment relations (ER) literature took the perspective that employee voice via trade unions could channel discontent and reduce exit, thereby improving productivity. In organizational behaviour (OB) research voice has also emerged as an important concept, and a focus of this research has been to understand the antecedents of the decision of employees to engage or not engage in voice. In OB research, however, voice is not viewed as it is in ER as a mechanism to provide collective representation of employee interests. Rather, it is seen as an expression of the desire and choice of individual workers to communicate information and ideas to management for the benefit of the organization. This article offers a critique of the OB conception of voice, and in particular highlights the limitations of its view of voice as a pro‐social behaviour. We argue that the OB conception of voice is at best partial because its definition of voice as an activity that benefits the organization leaves no room for considering voice as a means of challenging management, or indeed simply as being a vehicle for employee self‐determination.     

Commodity derivatives valuation with autoregressive and moving average components in the price dynamics

In this paper, we develop a continuous time factor model of commodity prices that allows for higher-order autoregressive and moving average components. We document the need for these components by analyzing the convenience yield’s time series dynamics. The model we propose is analytically tractable and allows us to derive closed-form pricing formulas for futures and options. Empirically, we estimate a parsimonious version of the general model for the crude oil futures market and demonstrate the model’s superior performance in pricing nearby futures contracts in- and out-of-sample. Most notably, the model substantially improves the pricing of long-horizon contracts with information from the short end of the futures curve.     

Outdoor management development: the mediating effect of the client organisation

This article reports on a study comparing the impact of an outdoor management development (OMD) programme on delegates from two different client organisations. By keeping the provider constant it is possible to assess how organisational factors mediate the transfer of learning from a development event back to the workplace. The results show that, while the programme had a very positive immediate impact on the delegates from both companies—they felt they had learnt a lot and that they were working better as a team—in only one of the companies was this change sustained back in the work-place. Follow-up interviews with delegates, four months after the event, highlighted that in the company where transfer was not evident, there were considerable organisational barriers. In this instance at least, it was not the OMD programme that was ‘at fault’ but the organisation climate or culture which impeded any transfer of learning.