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Article
Publication date: 12 November 2018

Samuel Tweneboah-Kodua, Francis Atsu and William Buchanan

The study uses cyberattacks announcements on 96 firms that are listed on S&P 500 over the period from January 03, 2013, to December 29, 2017.

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Abstract

Purpose

The study uses cyberattacks announcements on 96 firms that are listed on S&P 500 over the period from January 03, 2013, to December 29, 2017.

Design/methodology/approach

The empirical analysis was performed in two ways: cross-section and industry level. The authors use statistical tests that account for the effects of cross-section correlation in returns, returns series correlation, volatility changes and skewness in the returns.

Findings

These imply that studying the cumulative effects of cyberattacks on prices of listed firms without grouping them into the various sectors may be non-informative; financial sector firms tend to react cumulatively to cyberattacks over a three-day period than other sectors; and technology firms tend to be less reactive to the announcement of a data breach. Such firms may possibly have the necessary tools and techniques to address large-scale cyberattacks.

Research limitations/implications

For cross-section analysis, the outcome shows that the market does not significantly react to cyberattacks for all the event windows, except [−30, 30], while for the sector-level analysis, the analysis offers two main results.

Practical implications

First, while there is a firm reaction to cyberattacks for long event window for retail sector, there is no evidence of a cumulative firm reaction to cyberattacks for both short and long event windows for the industrial, information technology and health sectors. Second, the firms in the financial sector, there is a strong evidence of cumulative reaction to cyberattacks for [−1, 1] for the financial industry, and the reactions disappear for relatively longer event windows.

Social implications

These imply that studying the cumulative effects of cyberattacks on prices of listed firms without grouping them into the various sectors may be non-informative, the financial sector firms tend to react cumulatively to cyberattacks over a three-day period than other sectors, technology firms tend to be less reactive to the announcement of a data breach, possibly such firms may have the necessary tools and techniques to address large-scale cyberattacks.

Originality/value

The work provides new insights into the effect of cyber security on stock prices.

Details

Information & Computer Security, vol. 26 no. 5
Type: Research Article
ISSN: 2056-4961

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Article
Publication date: 1 July 2014

Francis Atsu, Charles Agyei, William Phanuel Darbi and Sussana Adjei-Mensah

The purpose of this paper is to investigate the long-run impact of telecommunications revenue and telecommunications investment on economic growth of Ghana for the time horizon…

991

Abstract

Purpose

The purpose of this paper is to investigate the long-run impact of telecommunications revenue and telecommunications investment on economic growth of Ghana for the time horizon 1976-2007.

Design/methodology/approach

The paper uses the Augmented Dickey Fuller and Phillips Perron unit root test to explore the stationarity property of the variables and the Engle-Granger residual-based test of cointegration to model an appropriate restricted error correction model.

Findings

The outcome of the analysis produced mixed results. Telecommunications revenue does not contribute significantly whilst telecommunications investment does.

Practical implications

Policy makers will have to deal with a conundrum; while designing targeted policies that will attract more telecommunication investment in order to maximize the corresponding revenues and the economic growth it brings in its wake, they must at the same time find ways and resources to grow the economy to a point or threshold where revenue from telecommunications can have the much needed impact on their economies.

Originality/value

The study is one of the first that has investigated the line of causality between telecommunication revenue and economic growth unlike previous research that mainly focused on the impact of telecommunication infrastructure on economic development.

Details

African Journal of Economic and Management Studies, vol. 5 no. 2
Type: Research Article
ISSN: 2040-0705

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Article
Publication date: 4 December 2019

Francis Kwotua Apungu, Charles Apprey, Emmanuel Kobla Atsu Amewu, Samuel Terkper Ahuno and Alexander Kwarteng

The purpose of the study is to assess the nutritional and health status of people living with HIV/AIDS (18-60 years) in selected health facilities in the eastern region of Ghana…

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Abstract

Purpose

The purpose of the study is to assess the nutritional and health status of people living with HIV/AIDS (18-60 years) in selected health facilities in the eastern region of Ghana and to determine the influence nutrition support programmes (NSP) have on the nutritional and health status of people living with HIV/AIDS.

Design/methodology/approach

A retrospective study design was used. Purposive and convenience sampling was used to select four hospitals and 200 beneficiaries and non-beneficiaries of the NSP. A structured questionnaire was used to collect the sociodemographic, anthropometric, biochemical and clinical history of the participants. Dietary intake was assessed with food frequency and 24-h dietary intake questionnaires. Previous data from the medical record within three to six months before the research was collected and compared with current data.

Findings

The prevalence of underweight (using body mass index) was 17 per cent and overweight/obesity was 37 per cent. Most respondents had adequate consumption of phosphorus (70.5 per cent); inadequate intake of calcium (95 per cent), vitamin E (77.5 per cent) and vitamin A (94 per cent); and excess intakes of sodium (93 per cent), selenium (77 per cent), copper (83.5 per cent) and manganese (76 per cent). There was no significant difference in nutrient intake of beneficiaries and non-beneficiaries of the NSP, although there were significant differences in the frequency of consumption of fruits (p < 0.001), vegetables (p < 0.001), legumes (p = 0.002), animal foods (p < 0.001) and cereals, grains and starch (p < 0.001) between beneficiaries and non-beneficiaries of NSP. About 38 and 20 per cent of respondents, respectively, had low haemoglobin (Hb < 11 g/dL) and high viral load (1,000 cp/mL). Comparing the current and previous (three to six months before the study) health and nutritional status of beneficiaries and non-beneficiaries of NSP, among the beneficiaries of NSP, monocytes increased by 40.6 per cent (p = 0.028) and mean weight decreased by 2.4 per cent (p = 0.007), Hb decreased by 7.1 per cent (p = 0.27) and viral load decreased by 4.2 per cent (p = 0.49), whereas among the non-beneficiaries, mean weight decreased by 0.05 per cent (p = 0.95) and Hb increased by 9.6 per cent (p = 0.06) and monocytes increased (p = 0.28) and viral load increased by 98.2 per cent (p = 0.34).

Research limitations/implications

A significant proportion of people living with HIV/AIDS had a high prevalence of underweight and overweight/obesity, inadequate nutrients intake and high viral load. The NSP for people living with HIV/AIDS in the eastern region of Ghana did not significantly influence the nutritional and health status of these people.

Practical implications

Knowing the nutritional status will help health institutions plan activities towards improving the health and nutritional status of people living with HIV/AIDS. This research is aimed at not only contributing to the existing body of knowledge but also making recommendations of action towards improving NSPs of people living with HIV/AIDS.

Social implications

Improvement in nutritional and health status of people living with HIV/AIDS will help reduce morbidity and mortality and its related cost to families, communities and the nation.

Originality/value

This study is first to determine the influence of NSPs on nutritional and health status of people living with HIV/AIDS in the eastern region of Ghana.

Details

Nutrition & Food Science , vol. 50 no. 4
Type: Research Article
ISSN: 0034-6659

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Book part
Publication date: 18 December 2016

C. Bram Cadsby, Fei Song and Francis Tapon

We demonstrate in a laboratory experiment that the effectiveness of performance-contingent incentives is inversely related to risk-aversion levels. For about 16.5% of…

Abstract

We demonstrate in a laboratory experiment that the effectiveness of performance-contingent incentives is inversely related to risk-aversion levels. For about 16.5% of participants, performance fails to improve under performance-pay, and the probability of such failure increases with risk-aversion. This phenomenon works in part through the reduced effort level of more risk-averse individuals when effort level is positively correlated with risk exposure. It is also associated with higher self-reported levels of stress by more risk-averse people working under performance-contingent pay. We find no evidence of such stress causing decrements in the quality of effort affecting performance after controlling for effort level. However, controlling for effort, more risk-averse participants perform better under a fixed salary, leaving less room for improvement under performance-pay.

Details

Experiments in Organizational Economics
Type: Book
ISBN: 978-1-78560-964-0

Keywords

Available. Open Access. Open Access
Article
Publication date: 9 November 2022

Santhosh Srinivas and Huigang Liang

While every firm is striving to embrace digital transformation (DT) to form new differentiating business capabilities, there are dark sides to such initiatives, and it is…

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Abstract

Purpose

While every firm is striving to embrace digital transformation (DT) to form new differentiating business capabilities, there are dark sides to such initiatives, and it is essential to acknowledge, identify and address them. The purpose of this paper is to identify and emperically demonstrate the impact of such darksides of DT. While a firm's DT effort may have many dark sides, the authors identify data breaches as the most critical one and focus on proving their impact since it can inflict significant damage to the firm.

Design/methodology/approach

Through the lens of paradox theory, the authors argue that the DT efforts of a firm will lead to increased risk and severity of data breaches. The authors developed a one-of-a-kind longitudinal data set by combining data from multiple sources, including 3604 brands over a 10-year period, and employed a DT performance scorecard to evaluate a firm's DT effort across four key digital selling touchpoints: site, mobile, digital marketing and social media.

Findings

The findings of this study show that a firm's DT efforts pertaining to its mobile and digital marketing platforms significantly increase the likelihood and severity of a data breach event indicating that these two channels are most vulnerable and need heightened attention from firms. Furthermore, the findings suggest that the negative repercussions of some DT initiatives may be minimized as the firm becomes more innovative. The findings can help firms re-strategize their DT efforts by promoting security and also encouraging a balanced communication strategy.

Originality/value

This research is one of the first to identify, recognize and empirically illustrate the downsides of a DT effort that is otherwise thought to provide only benefits.

Details

Journal of Electronic Business & Digital Economics, vol. 1 no. 1/2
Type: Research Article
ISSN: 2754-4214

Keywords

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Article
Publication date: 28 July 2023

Edem M. Azila-Gbettor, Christopher Mensah and Martin K. Abiemo

The study aims to examine the moderating influence of perceived co-worker support in the nexus between compulsory citizenship behaviour, job involvement and social loafing amongst…

240

Abstract

Purpose

The study aims to examine the moderating influence of perceived co-worker support in the nexus between compulsory citizenship behaviour, job involvement and social loafing amongst university interns.

Design/methodology/approach

Four hundred and sixty-two) respondents took part in the study by completing a self-reported questionnaire distributed via online WhatsApp platform. The respondents were selected using multistage sampling technique. The data were processed and analysed using IBM SPSS version 24 and PLS-SEM, respectively.

Findings

Results reveal interns’ experience of compulsory citizenship behaviour positively influences their social loafing and negatively influences their job involvement. Furthermore, the support received from co-workers’ reduces the negative influence of compulsory citizenship behaviour on interns’ (1) social loafing and (2) job involvement.

Research limitations

The study’s main limitations have been identified as the type of organisation in which the internship was completed and the number of years of internship experience. Future research may seek to address this problem by obtaining data from a cohort that is categorised based on the nature of the organisation and duration of the internship.

Practical implications

Perceived co-worker support has been found to reduce the negative effects of interns’ compulsory citizenship behaviour on their job outcomes. It is recommended that organisations establish a supportive work environment to assist interns. This can be achieved through various means, such as engaging in team-building activities and assigning mentors, among other strategies.

Originality/value

One of the first to have examined a model linking compulsory citizenship behaviour, job involvement, social loafing and perceived co-worker support amongst interns in a higher education environment.

Details

Higher Education, Skills and Work-Based Learning, vol. 14 no. 1
Type: Research Article
ISSN: 2042-3896

Keywords

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