Oluyemi Theophilus Adeosun and Oluwaseyi Omowunmi Popogbe
Population growth has remained a key issue facing developing economies in the world. While developed countries are experiencing diminished or negative population growth, many…
Abstract
Purpose
Population growth has remained a key issue facing developing economies in the world. While developed countries are experiencing diminished or negative population growth, many countries in sub-Saharan Africa including Nigeria are having population growth above the economic growth rate. With the deadline for the sustainable development goals approaching, attention is increasingly being focused on population growth and human capital development. Extant literature focused on population growth, human resource utilization and economic growth but this study aims to examine the effect of population growth on human resource utilization.
Design/methodology/approach
Using secondary data for the period 1990-2018, the study conducted unit root test and co-integration analyses to determine the stationarity and correlation in the long-run in the variables. The study used the error correction model to ascertain the speed at which shocks can be corrected in the long-run. Granger causality test was also carried out to ascertain the direction of causality among the variables.
Findings
The empirical results revealed that population growth has a negative and significant effect on human resource utilization. The study also revealed that unidirectional causality runs from employment rate to population growth rate and a unidirectional causality runs from employment growth rate to expected years of schooling. The Nigerian Government needs to not only control population growth but also focus on the quality of education.
Originality/value
The paper provides insights into the relationship between population growth and human capital utilization in Nigeria focusing on the 1986-2018 period.
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Julian N. Marewski, Konstantinos V. Katsikopoulos and Simone Guercini
Are there smart ways to find heuristics? What are the common principles behind heuristics? We propose an integrative definition of heuristics, based on insights that apply to all…
Abstract
Purpose
Are there smart ways to find heuristics? What are the common principles behind heuristics? We propose an integrative definition of heuristics, based on insights that apply to all heuristics, and put forward meta-heuristics for discovering heuristics.
Design/methodology/approach
We employ Herbert Simon’s metaphor that human behavior is shaped by the scissors of the mind and its environment. We present heuristics from different domains and multiple sources, including scholarly literature, practitioner-reports and ancient texts.
Findings
Heuristics are simple, actionable principles for behavior that can take different forms, including that of computational algorithms and qualitative rules-of-thumb, cast into proverbs or folk-wisdom. We introduce heuristics for tasks ranging from management to writing and warfare. We report 13 meta-heuristics for discovering new heuristics and identify four principles behind them and all other heuristics: Those principles concern the (1) plurality, (2) correspondence, (3) connectedness of heuristics and environments and (4) the interdisciplinary nature of the scissors’ blades with respect to research fields and methodology.
Originality/value
We take a fresh look at Simon’s scissors-metaphor and employ it to derive an integrative perspective that includes a study of meta-heuristics.
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Helge H.O. Müller, Mareen Reike, Simon Grosse-Holz, Mareike Röther, Caroline Lücke, Alexandra Philipsen, Johannes Kornhuber and Teja W. Grömer
Electroconvulsive therapy (ECT) is effective in the treatment of treatment-resistant major depression. The fear of cognitive impairment after ECT often deters patients from…
Abstract
Electroconvulsive therapy (ECT) is effective in the treatment of treatment-resistant major depression. The fear of cognitive impairment after ECT often deters patients from choosing this treatment option. There is little reliable information regarding the effects of ECT on overall cognitive performance, while short-term memory deficits are well known but not easy to measure within clinical routines. In this pilot study, we examined ECT recipients' pre- and post-treatment performances on a digital ascending number tapping test. We found that cognitive performance measures exhibited good reproducibility in individual patients and that ECT did not significantly alter cognitive performance up to 2 hours after this therapy was applied. Our results can help patients and physicians make decisions regarding the administration of ECT. Digital measurements are recommended, especially when screening for the most common side effects on cognitive performance and short-term memory.
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Sri Rahayu Hijrah Hati, Muhammad Budi Prasetyo and Nur Dhani Hendranastiti
The study aims to examine the difference of financial-based brand equity of Sharia-compliant and non-Sharia-compliant companies listed in the stock market.
Abstract
Purpose
The study aims to examine the difference of financial-based brand equity of Sharia-compliant and non-Sharia-compliant companies listed in the stock market.
Design/methodology/approach
The five-year data were collected from 561 companies listed in the Indonesian stock market (349 Sharia-compliant firms and 212 non-Sharia-compliant firms).
Findings
Based on five years of observations, the study shows that Sharia-compliant companies have much higher brand equity than companies that are not Sharia-compliant. However, the study did not find consistent results when the study examined the differences between brand equity in newly listed Sharia-compliant firms in the short run (two-quarters of the observations). In other words, Sharia-compliant status positively impacted a company’s brand equity only in the long run.
Research limitations/implications
The study examines only the brand equity of Sharia- and non-Sharia-compliant companies in the Indonesian stock market.
Practical implications
The study suggests that companies should list their equity in the Islamic stock market as the empirical evidence shows that the companies listed in the Sharia index have much higher brand equity than companies listed in the non-Sharia index, although this impact can only be seen in the long run.
Originality/value
The study integrates finance and marketing perspectives, which are often disconnected in daily business. In addition, the study provides a piece of empirical evidence on the effect of financial decision to be listed in the Islamic stock market on the establishment of brand equity, which represents the long-term intangible assets of the firm in the eyes of the customers.
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Richard Osadume and Edih O. University
This study investigated the impact of economic growth on carbon emissions on selected West African countries between 1980 and 2019. Simon-Steinmann's economic growth model…
Abstract
Purpose
This study investigated the impact of economic growth on carbon emissions on selected West African countries between 1980 and 2019. Simon-Steinmann's economic growth model provides the relevant theoretical foundation. The main objective of this study was to ascertain whether economic growth will impact carbon emissions.
Design/methodology/approach
The study selected six-sample countries in West Africa and used secondary data obtained through the World Bank Group online database covering the period 1980–2019, employing panel econometric methods of statistical analysis.
Findings
The outcome indicates that the independent variable showed a positively significant impact on the dependent variable for the pooled samples in the short-run, with significant cointegration.
Research limitations/implications
The study concluded that economic growth significantly impacts the emissions of carbon, and a 1% rise in economic growth will result to 3.11121% unit rise in carbon emissions.
Practical implications
Policy implementation should encourage the use of energy efficient facilities by firms and government and the establishment of carbon trading hubs.
Social implications
Failure by governments to heed the recommendations of this research will result to serious climate change issues on economic activities with attendant consequences on human health within the region and globally.
Originality/value
This is one of the comprehensive works on subject covering the West African region within the continent.
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Simon Lind Fischer and Maartje Roelofsen
This paper explores how Airbnb hosts' experiences with and responses to the coronavirus disease 2019 (COVID-19) health crisis may differ according to their motivations to host and…
Abstract
Purpose
This paper explores how Airbnb hosts' experiences with and responses to the coronavirus disease 2019 (COVID-19) health crisis may differ according to their motivations to host and to the type and spatial layout of their Airbnb accommodation. Based on these insights, the paper reflects on the lessons that are learned for the future of short-term rentals.
Design/methodology/approach
This is a qualitative multi-method small-scale case study, which relies on in-depth interviews and a focus group discussion carried out with a group of hosts affiliated to the Airbnb Host Community in Aarhus, Denmark. Informed by an interpretivist approach, the study aims to make sense of people's subjective experiences with hosting on the Airbnb platform, and how they have continued and adapted their hospitality practices during the pandemic.
Findings
Participants' adaptive practices vary according to their motivations to host and the type of accommodation that they rent out. Although all hosts in this study now implement more intensive cleaning practices, hosts who stay with their guests onsite tend to take stricter preventative measures to avoid contamination and transmission of the virus in their social interactions with guests. On the contrary, hosts who rent out their entire properties and have minimal contact with their guests found themselves less affected by the pandemic's impacts and have had a continued demand for their properties.
Social implications
The COVID-19 pandemic has unevenly affected Airbnb hosts. Hosts who share their homes with guests require different adaptations to their daily behaviour and cleaning practices at home than hosts who do not stay with their guests and rent out entire properties. However, unlike professional hosts who largely or solely rely on Airbnb for their income, occasional home-sharing hosts tend to be more flexible in coping with cancelled or fewer bookings.
Originality/value
This study provides novel insights into the uneven impact of the COVID-19 pandemic on participants in the platform economies of tourism. It contributes to existing literature on the impacts of the pandemic on Airbnb's operations by showing how hosts' adaptive practices are informed by their subjective living conditions and the type of accommodation they can offer their guests.
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Mikhail Fiadotau and Silja Lassur
The chapter takes a micro-level view to investigate cross-innovation between the audiovisual media and tourism sectors. It provides a narrativised account of the creation and…
Abstract
The chapter takes a micro-level view to investigate cross-innovation between the audiovisual media and tourism sectors. It provides a narrativised account of the creation and development of two location-based film tourism apps, one developed in Hamburg, Germany and another in Malmö, Sweden. In doing so, it aims to elucidate the dynamics of innovation at the boundaries of industries, as experienced by individuals and small groups engaged in the process. The conclusion of the chapter focuses on the broader issue of the relative slowness of innovation in the tourism industry, as well as the shortage of private sector-driven initiatives that address this issue. It also touches upon the critical issue of the platformisation of tourism industries and its potential effects on cross-innovation.
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Enrico Bracci and Mouhcine Tallaki
Inspite of the attention resilience receives in relation to public policy and public management, very few studies have analysed the internal mechanics of public sector…
Abstract
Purpose
Inspite of the attention resilience receives in relation to public policy and public management, very few studies have analysed the internal mechanics of public sector organisations to see what is producing their resilience. Considering management control systems (MCSs) as the drivers of organisational change, this paper aims to explore their role as determinants of resilience in the public sector. The paper attempts to open the black box of organisational functioning focusing on one complex component.
Design/methodology/approach
This paper adopted a qualitative approach for this longitudinal case study. This paper used a mix of primary and secondary sources in terms of direct observation, semi-structured interviews and internal document analysis. This paper used a framework drawing on Barbera et al. (2017) and management control’s constraining and facilitating concepts to explore how anticipatory and coping capacities of resilience are supported and reinforced by MCSs.
Findings
Findings suggest that MCSs support adaptive behaviour and assist decision-making by providing knowledge and ready-to-use answers to cope with external shocks. However, this is found in case of the adoption of facilitating MCSs, which empower managers and employees and are based on stewardship roles. In such a context, MCSs played an essential role in shaping anticipatory and coping capacities. At the same time, financial shocks fostered the investment in MCSs, cyclically strengthening or developing new anticipatory and coping capacities.
Originality/value
To the best of the authors’ knowledge, this paper is one of the first attempting to identify how facilitating MCSs, as a driver of organisational change, can make an organisation more resilient. It shows how resilience capacities are generated and strengthened via MCSs.
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The purpose of this report was to evaluate the effectiveness and practicality of system dynamics modeling in integrating econometric equations to describe the effects of supply…
Abstract
Purpose
The purpose of this report was to evaluate the effectiveness and practicality of system dynamics modeling in integrating econometric equations to describe the effects of supply chain material and information delays on pricing decisions and consequent financial results in an animal feed export business.
Design/methodology/approach
An empirical dynamic model, loaded with econometric theory of price effect on competitive demand, was used to describe the input data.
Findings
The model simulation outputs proved themselves relevant in analyzing the complex interconnections of multiple variables affecting the profitability in a commercial routine, supporting the decision process among sales managers. The impact of information delay on price decisions and business financial results were estimated using the model proposed.
Originality/value
This paper describes an empirical model, based on system dynamics, that predicts operating contribution margins and cash conversion cycles based on estimation of information and material delays in a supply chain. The method is pragmatic and simple for business routine implementation.
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Julia Solnier, Roland Gahler and Simon Wood
Background/Objectives: Protein-based meal replacements (MR) with viscous soluble fibre are known aids for weight loss. This study aims to compare the effects of new whey and vegan…
Abstract
Purpose
Background/Objectives: Protein-based meal replacements (MR) with viscous soluble fibre are known aids for weight loss. This study aims to compare the effects of new whey and vegan MR containing different amounts of PGX (PolyGlycopleX) on weight loss over 12 weeks, along with a calorie-restricted diet.
Design/methodology/approach
Subjects/Methods: Sixty-eight healthy adults of both sexes (53 women; 15 men; average age 47.1 years; BMI 31 ± 7.1 kg/m2 and weight 85.05 ± 23.3 kg) were recruited. Participants consumed a whey or vegan MR twice/d (5–10 g/day PGX) with a low-energy diet (1,200 kcal/day), over 12 weeks. Weight, height, waist and hip circumference were recorded (four time periods).
Findings
Results: Forty-four participants completed the study. Results showed significant reductions in average body weight and at week 12, whey group was [−7.7 kg ± 0.9 (8.3%), p < 0.001] and vegan group was [−4.5 kg ± 0.8 (6.2%), p < 0.001)]. All participants (n = 44; BMI 27 to 33 kg/m2) achieved significant reductions in body measurements from baseline to week 12; p < 0.001. Conclusions: Supplementation of protein-based MR with PGX and a balanced, low-energy diet, appears to be an effective approach for short-term weight loss.
Research limitations/implications
As the authors were evaluating if the MR as a whole (i.e. with PGX) caused weight loss from baseline over the 12 weeks, no comparators, i.e. just the MR without PGX, were used. Formulation of these new MRs resulted in a whey product with 5 g PGX and a vegan product with 2.5 g PGX. Only 2.5 g PGX could be formulated with the vegan protein due to taste and viscosity limitations. Study participants were not randomized and no control groups (e.g. no MR or MR without PGX but with energy restricted diet) were used. Furthermore, it is not clear whether the sort of protein alone or the combination with a higher amount of PGX (whey with 5 g PGX/serving vs vegan with 2.5 g PGX/serving) has contributed to these significant greater weight-loss effects. This was something the authors were testing, i.e. could only 2.5 g PGX/serving have an effect on weight loss for a vegan MR. These limitations would be somethings to evaluate in a subsequent randomized controlled study. Hence, the results of this study may serve as a good starting point for further sophisticated randomized controlled trials that can demonstrate causality – which the authors acknowledge as one of the fundamental limitations of an observational study design. Participants tracked their calories but adherence and compliance were self-assessed and they were encouraged to keep their exercise routine consistent throughout the study. Hence, these are further limitations. No control group was used in this study to observe the effect of the dietary intervention and/or physical activity on weight loss alone. However, a goal of the authors was to keep this study as close to a real-life situation as possible, where people would not be doing any of these measurements, to see if with minimal supervision or intervention, people can still lose weight and alter their body composition. Furthermore, differences in gender and the corresponding weight loss effects in response to MR-protein-based treatments could be evaluated in follow-up studies.
Practical implications
This study indicates that the consumption of protein-based (animal, whey or plant, pea protein) MR incorporating the highly soluble viscous PGX is beneficial for weight loss when combined with a healthy-balanced, calorie-restricted diet. MRs at either 2.5 g or 5 g per serving (RealEasyTM with PGX) proved to be a highly effective as a short-term solution for weight loss. The observed results are encouraging, however, further long-term studies (i.e. randomized clinical trials RCT) are needed to confirm the clinical relevance. RCTs should focus on the individual effects of PGX and/or the different protein sources used in MRs, on weight loss and the maintenance of the reduced body weight, and should measure detailed blood parameters (lipid profiles, glucose etc.) as well as collect detailed exercise and food consumption diaries.
Originality/value
To the authors’ knowledge, this is the first study comparing a whey versus vegan, (as pea) protein-based MR that is supplemented with fibre PGX; thus, this work adds information to the already existing literature on fibre (such as PGX) and MRs regarding their combined weight loss effects. The purpose of this study was to observe if the novel protein-based (either whey or vegan versions) MR RealEasyTM with PGX at 2.5 or 5 g in addition to a calorie-restricted diet (total of 1,200 kcal/day) would aid in weight loss in individuals over a 12-weeks period. Adding increasing amounts of whey protein and soluble fibre can help reduce subsequent ad libitum energy intake which could help adherence to energy restricted diets, but whether similar effects are seen with vegan protein is unclear – this study does aim to address this.