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The purpose of this is paper is to pay a closer look at the 2008-2009 financial crisis (and its aftermath) and analyzes stock returns of nine major US oil companies as well as the oil and gas sector under daily data from January 1992 to April 2012.

The authors adopt the arbitrage pricing theory model to examine the relationship between stock returns and their influences including oil price return, yield spreads, and US dollar index return. The authors also provide a test for structural changes in each regression model of return series to capture for multiple breaks. To examine the asymmetric effect of oil price returns on stock returns, the authors separate oil price returns series into two series: positive changes in oil price and negative changes in oil price.

The authors find stock returns of oil companies as well as the oil and gas sector are positively affected by oil prices and have stronger effects in the downward direction. Interestingly, The authors find the effects of oil price movements on stock returns increase over time. The authors examine the possibility that investors wishing to hedge against a weakening USD invest in US oil companies and find that more than half of these companies benefit from a weaker USD against the JPY, while all strongly benefit from a weaker USD against major currencies.

The authors employ daily data for two-decade period including the last global financial crisis. Due to the long-term period covered in this study, sequential Bai-Perron tests are used to detect structural breaks of stock return series. In addition, the data-dependent procedures result in good specifications throughout with white-noise processes in almost all cases.

The purpose is to propose a structure for corporate value statements, which is useful as an underlying organizing principle that makes them more comprehensible, and at the same time identifies values that can serve as criteria for strategic decision‐making.

The main approach is theoretical development of value categories. It is followed up by an empirical investigation of value statements on corporate web pages to see if the proposed principles are applicable.

The paper proposes a comprehensive value system that consists of three main value categories juxtaposed on the same level: Core values prescribe the attitude and character of the organization. They are often found in sections on code of conduct, values statement, or credo. Protected values are protected through rules, standards and certificates. They are mostly found in sections concerning health, environment and safety. Created values are the values that stakeholders, including the shareholders, expect in return for their contributions to the firm. They are often found in sections on objectives and always in the annual report.

The empirical research is limited to companies listed on two stock exchanges. Further research should include other types of organizations.

It is hoped that the proposed value system can contribute to making corporate value statements more comprehensible and useful for strategic decision‐making.

It is believed to be a new idea to propose a holistic value system for value communication that can incorporate all values.

The purpose of the paper is to present a concept for the development of technical integrity management services (TIMS) for production facilities that combines multidisciplinary activities and competences to optimize operational expenses and improve production reliability while keeping focus on health, safety and environment.

The paper is based on a literature survey and observation of industrial practices. The industrial practices are observed through active participation in the development of the concept.

The concept involves a main service provider to integrate various competences and activities in service packages to provide holistic solutions to the customers' technical integrity needs. Such a concept could facilitate development of a new type of maintenance and modification solutions in which the maintenance strategies are developed based on real‐time data acquisition and analysis of actual asset condition.

The conceptual approach presented provides insight into the process of combining expertise and activities from different disciplines in one service solution package. The concept can be used by managers to develop better technical integrity solutions for production facilities.

The paper presents a concept that can be used in industry by managers to develop service solutions in the maintenance area that could improve the effectiveness and efficiency of maintenance processes in capital‐intensive industries. TIMS is expected to provide a service solution that may change operation and maintenance practices as well as the relationship between the involved companies/specialists.

The purpose of this paper is to discover similarities and differences in the construction industry in China and the United States by using data analytic tools on data crawled from social media platforms.

The method comprised comprehensive data analytics using network link analysis and natural language processing tools to discover similarities and differences of social networks, topics of interests and sentiments and emotions on different social media platforms.

From the research, it showed that all clusters (construction company, construction worker, construction media and construction union) shared similar trends on follower-following ratios and sentiment analysis in both social media platforms. The biggest difference between the two countries is that public accounts (e.g. company, media and union) on Twitter posted more on public interests, including safety and energy.

The research contributes to knowledge about an alternative method of data collection for both academia and industry practitioners. Statistical bias can be introduced by only using social media platform data. The analyzed four clusters can be further divided to reflect more fine-grained groups of construction industries. The results can be integrated into other analyses based on traditional methodologies of data collection such as questionnaire surveys or interviews.

The research provides a comparative study of the construction industries in China and the USA among four clusters using social media platform data.

This analysis draws on interviews with 19 self-identified US diversity consultants and 94 diversity statements posted on corporate websites. The findings challenge existing literature that characterizes the business case for diversity as monolithic and wholly problematic for the way it constructs understandings of human difference. The authors accomplish this using metaphor analysis to demonstrate how business case arguments incorporate three metaphorical systems for thinking and speaking about human differences – as asset, as liability and as possibility. Given this diversity of metaphors, the business case does not construct human difference in a monolithic way, but in a variety of ways that both challenge and sustain problematic treatments of difference. The authors argue scholars and practitioners should attend to these nuanced difference within the discourse of the business case, and more carefully consider how these metaphorical systems both enable and constrain the design and execution of diversity work in organizations. The paper aims to discuss these issues.

The analysis draws on two data sets: initial interviews with 19 self-identified US diversity consultants analyzed using metaphor analysis. To triangulate findings, the metaphorical framework was applied to 94 diversity statements posted on corporate websites.

Business case arguments operate according to three root metaphors of human difference: human difference as asset, human difference as liability and human difference as possibility. This challenges existing literature that treats the business case as a monolithic discourse.

This analysis offers the three metaphorical system and highlights the “constrained capacity” of each. This framework offers an analytical and practical tool for scholars and practitioners, enabling them to more thoroughly understand and respond to their unique organizational and socio-historical context. It also provides a way to analyze how concepts of difference are mobilized across social and historical contexts.

The findings offer the “constrained capacity” that is, the strategic limitations and possibilities for practitioners who use the business case in their diversity work. This enables more skilled and ethically informed diversity initiatives.

The findings offer insight into the subtle ways that hierarchies of human difference embedded in US history are subtly reinforced and made present through language. This enables social justice workers to better challenge problematic constructions of human difference and create new understandings when needed.

This piece makes two significant original contributions to existing literature. It offers more nuance to both critical and uncritical analyses of the business case by showing the diversity of business case assumptions about human difference as demonstrated in three different metaphorical systems and highlighting the constrained capacity of three different metaphorical systems. It offers unique analysis grounded in contemporary discourses, but correlated to historical systems of thought. This enables empirical identification of how certain types of thinking about human difference move across socio-historical contexts.

To learn how Inuvialuit people feel about the oil and gas activities on their land.

Interviews were administered to a stratified sample, on Inuvialuit land. Participants included: Inuvialuit elders; entrepreneurs; public servants; employees of the private sector; managers of oil companies; unemployed persons; housewives; the mayor of Inuvik; and the first aboriginal woman leader in Canada.

It was reported that oil and gas industry activities are having a positive impact on the regional economy, creating indirect as well as direct financial benefits for the Inuvialuit among others. However, some residents qualified their support saying that they are in favour of continued activity only if benefits filter to them as opposed to being enjoyed only by oil companies and migrant employees. Concern was also expressed for the environment and for the threat that development brings to wildlife upon which people rely on as a food source.

This study should have a longitudinal follow‐up.

While oil and gas exploration and the building of a pipeline may have economic advantages, this might have social, cultural and environment costs for the Inuvialuit.

The paper illustrates how oil and gas activities on Inuvialuit land will transform the lives of these people.

The global energy industry transports supplies and personnel via helicopter to offshore locations and is increasingly focusing on optimizing upstream logistics. This paper aims to and achieves a mutually beneficial balance between research and practice by providing generalizable methods to a problem routinely encountered in practice. Overall, the development and execution of the heterogeneous capacitated helicopter routing problem with split deliveries and multiple depots is validated by the networks’ results.

Using a unique sample of deepwater and ultra-deepwater permanent offshore locations in the Gulf of Mexico, transportation networks consisting of 57 locations operated by 19 firms are optimized via a randomized greedy algorithm. The study’s randomized greedy algorithm yields depot assignment, vehicle assignment, passenger assignment and routing. All data processing techniques and iterative algorithm processes are defined and explained.

Results show that the model effectively solves the complex transportation networks consisting of subject firms’ offshore nodes and eligible depots. Specifically, average load factors related to seat capacity and effective vehicle capacity of 87.7 and 95.7% are realized, respectively. The study’s model is a unique contribution to the extant literature and provides researchers and practitioners a practical approach to model development and solution deliverance.

The extant literature encompasses works that inadequately observe the complexity associated with the transportation of personnel. Specifically, this research, unlike many works in the extant literature, uses a heterogeneous versus homogeneous fleet, includes multiple depots versus a single depot and allows split deliveries. Also, the current research ensures all relevant aircraft capabilities and limitations are observed. In particular, the paper takes into account vehicles’ seat capacities, effective capacities via maximum gross takeoff weights and reserve fuel requirements. The current model, which is built upon a heterogeneous capacitated helicopter routing problem with split deliveries and multiple depots (HCHRPSDMD), sufficiently provides a practical approach to model development and solution deliverance while promoting future research endeavors. Future research may use these findings for other geographical regions and similar transportation networks and could adopt firm-specific actual cost parameters instead of the estimated average hourly costs of operating different helicopters. Furthermore, future endeavors may employ other techniques for the derivation of solutions. Future works may be enhanced with actual cost data in lieu of estimations. In the current study, cost data were not available; however, estimations do not inherently proscribe sound interpretations of the models’ outputs. Also, future research endeavors including manual method results may enable comparative results to establish cost variance analysis. Although the current study is, to some extent, limited, the practicality for practitioners and contribution to researchers is comprehensible. Due to the idiosyncrasies and complexity prevalent in modern transportation networks, optimization is and will continue to be a rich opportunity for implementation and research.

As described by previous researchers, energy firms may more efficiently use their contracted aircraft via implementation of a decision-making mechanism for passenger assignment, aircraft selection, depot selection and aircraft routing. Most energy firms possess numerous and spatially segregated offshore facilities and, therefore, are unable to efficiently and effectively make such decisions. Ultimately, the efficient use of firms’ contracted helicopters can enhance profitability via reduced costs without compromising operational performance. Reduced costs are likely to be realized by a potential workforce or workload reduction, reduced flight hours and enhanced bargaining power with commercial helicopter operators. Specifically, enhanced bargaining power may be realized as a result of minimized depots from which the aircraft are operated and an overall reduction of aircraft via increased asset utilization. In essence, the efficient use of commercial helicopters may yield systemic efficiencies that can be shared among all stakeholders, contracting energy firms and commercial helicopter operators. The achievement of operational efficiencies, ultimately, may determine the realization of target performance or solvency of a plethora of firms in the future (Krishnan et al., 2019).

For economies, communities and industries depending on crude oil and natural gas production, people’s livelihoods are significantly impacted due to price fluctuations (Rostan and Rostan, 2020; Solaymani, 2019). Based on a unique set of inputs and outputs, the International Energy Agency region (IEA), which includes the current study’s sample set, was found to achieve greater overall production efficiency relative to the Organization of the Petroleum Exporting Countries (OPEC) and the Organization of Arab Petroleum Exporting Countries (OAPEC) (Ohene-Asare et al., 2018). Therefore, enhanced logistics efficiency within the energy industry’s transportation sector across the globe is reasonably likely. For countries relying on these commodities’ exportation, production efficiency is and will continue to be a priority. With limited resources available in industry and society, efficiency is prone to yield advantageous results for all stakeholders. Furthermore, in the context of this study, a reduction of carbon dioxide and noise pollution in air, above water and on land will contribute to society’s drive to protect the environment and preserve our natural resources for future generations.

The current study represents the lone or one of few research endeavors to evaluate the heterogeneous capacitated helicopter routing problem with split deliveries and multiple depots. Furthermore, research pertaining to transportation via helicopter in the Gulf of Mexico’s offshore basin is unprecedented. Lastly, this work yields actionable knowledge for practitioners while enhancing current and promoting future research endeavors.

The way and manner in which energy is produced is known to have a significant impact on emissions. For this reason, the UK government has sought to enhance the efficiency of energy production/conversion by focusing on a number of energy production approaches, including Combined Heat and Power (CHP). The purpose of this paper is to describe a practical approach for assessing the feasibility of CHP.

The authors provide an overview of Combined Heat and Power (CHP); describe a new and easy‐to‐implement feasibility and optimisation model to aid in the installation of CHP; and discuss the practical feasibility issues of CHP through an analysis of existing case studies using the proposed model. The modelling utilises regression models which are created using historical data obtained from public sources.

Compared against alternatives, the model is shown to be particularly useful, as its functionality is embedded in resource‐intensive prime mover specifications obtained from seven real industrial cases.

The need for such a practical and easy‐to‐use model is driven by the existence of numerous models, which are mainly complex and not necessarily “user‐friendly”. The proposed model is set to provide a practical and user‐friendly model for CHP appraisal that is easy to understand and assess in terms of prime movers such as capital cost, payback, annual financial and CO₂ savings.