While the extant literature is replete with theoretical and empirical studies of value at risk (VaR) methods, only a few papers have applied the concept of VaR to quantify market…
Abstract
Purpose
While the extant literature is replete with theoretical and empirical studies of value at risk (VaR) methods, only a few papers have applied the concept of VaR to quantify market risk in the context of agricultural finance. Furthermore, papers that have done so have largely relied on parametric methods to recover estimates of the VaR. The purpose of this paper is to assess extreme market risk on investment in three actively traded agricultural commodity futures.
Design/methodology/approach
A nonparametric Kernel method was implemented which accommodates fat tails and asymmetry of the portfolio return density as well as serial correlation of the data, to estimate market risk for investments in three actively traded agricultural futures contracts: corn, soybeans, and wheat. As a futures contract is a zero‐sum game, the VaR for both short and long sides of the market was computed.
Findings
It was found that wheat futures are riskier than either corn or soybeans futures over both periods considered in the study (2000‐2008 and 2006‐2008) and that all three commodities have experienced a sharp increase in market risk over the 2006‐2008 period, with VaR estimates 10‐43 percent higher than the long‐run estimates.
Research limitations/implications
Research is based on cross‐sectional data and does not allow for dynamic assessment of expenditure elasticities.
Originality/value
This paper differs methodologically from previous applications of VaR in agricultural finance in that a nonparametric Kernel estimator was implemented which is exempt of misspecification risk, in the context of risk management of investment in agricultural futures contracts. The application is particularly relevant to grain elevator businesses which purchase grain from farmers on a forward contract basis and then turn to the futures markets to insure against falling prices.
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Eric Kodzo Adzivor, Fidelis Emuze and Dillip Kumar Das
The purpose of this article is to determine safety culture indicators that can improve the health and safety performance of small and medium-sized enterprise (SME) contractors in…
Abstract
Purpose
The purpose of this article is to determine safety culture indicators that can improve the health and safety performance of small and medium-sized enterprise (SME) contractors in Ghana.
Design/methodology/approach
A three-round Delphi method was used. The first round consisted of 31 experts out of which 18 of them rated their agreements with a set of 87 potential safety culture indicators using a 10-point Likert scale of importance (1 = important and 10 = very important) and the 16 experts who completed the final round were given the opportunity to suggest other indicators. The 87 indicators were categorised into 14 core health and safety elements. Indicators that attained a group median value of 5–10 for 50% or more expert ratings were accepted.
Findings
At the end of the third round, a consensus was reached on the indicators when they attracted median scores of 5–10 for at least 50% or more of the health and safety experts rated the indicators between 5 and 10. Out of a total of 87 indicators at the start of the Delphi process, the consensus was reached on 70 that were retained.
Research limitations/implications
The health and safety experts were not given the opportunity to add new indicators to the structured questionnaire until the third round.
Originality/value
This is the first study, to the best of the authors’ knowledge, to have a consensus by health and safety experts on leading indicator metrics of positive culture of construction safety in Ghana for improved SME construction company’s health and safety performance in Ghana. If these indicators are adopted and used effectively in Ghana, they would ensure positive culture of construction safety and subsequently help to protect construction workers.
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Lazaro Viana, Izabela Simon Rampasso, Milena Pavan Serafim, Osvaldo Luiz Gonçalves Quelhas, Walter Leal Filho and Rosley Anholon
Junior enterprises have been gaining increasing attention in the Brazilian Higher Education Institutions. In addition, these companies are contributing to enhance the training of…
Abstract
Purpose
Junior enterprises have been gaining increasing attention in the Brazilian Higher Education Institutions. In addition, these companies are contributing to enhance the training of future professionals. Improvements in future professionals’ training must consider education for sustainability. In this context, this paper aims to critically analyze the role of junior enterprises in the training of undergraduate students in line with the sustainable development goals (SDGs).
Design/methodology/approach
To discuss the ways for junior enterprises to contribute to students’ training with a higher alignment with sustainable development, it is necessary to know the routine of their activities well. Therefore, the strategy used in this research was to use the Delphi process with students who participated/participate in this kind of extracurricular activity in their institutions and are familiar with the SDGs disseminated by the United Nations.
Findings
From the rounds of Delphi method debates, eight items were listed and presented an agreement greater than 50% of the participants. Illustratively, three of them are cited here: most participants understand that some current metrics used by junior enterprises require greater alignment with the SDGs; most participants agree that junior enterprises need to better monitor the results of their postexecution projects because in general beneficial impacts on sustainability are observed in the long term; and most of the participants understand that the actions developed by junior enterprises are aligned with corporate sustainability and conscious capitalism.
Originality/value
The contribution of junior enterprises to the promotion of sustainability education is practically not addressed in the literature. The findings presented here, resulting from the Delphi process, can greatly contribute for junior enterprises to rethink their actions to better prepare future professionals to act toward sustainable development.