Joshua Amuzu

Joshua Amuzu

orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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31 October 2018 in Climate
Verified
Journal Article
Open access
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ILIsaac Larbi
Isaac Larbi
FHFabien C. C. Hountondji
Fabien C. C. Hountondji
TAThompson Annor
Thompson Annor
WAWilson Agyei Agyare
Wilson Agyei Agyare
JGJohn Mwangi Gathenya
John Mwangi Gathenya
JAJoshua Amuzu
Joshua Amuzu
This study examined the trends in annual rainfall and temperature extremes over the Vea catchment for the period 1985–2016, using quality-controlled stations and a high resolution (5 km) Climate Hazards Group InfraRed Precipitation with Station (CHIRPS) data. The CHIRPS gridded precipitation data’s ability in reproducing the climatology of the catchment was evaluated. The extreme rainfall and temperature indices were computed using a RClimdex package by considering seventeen (17) climate change indices from the Expert Team on Climate Change Detection Monitoring Indices (ETCCDMI). Trend detection and quantification in the rainfall (frequency and intensity) and temperature extreme indices were analyzed using the non-parametric Mann–Kendall (MK) test and Sen’s slope estimator. The results show a very high seasonal correlation coefficient (r = 0.99), Nash–Sutcliff efficiency (0.98) and percentage bias (4.4% and −8.1%) between the stations and the gridded data. An investigation of dry and wet years using Standardized Anomaly Index shows 45.5% frequency of drier than normal periods compared to 54.5% wetter than normal periods in the catchment with 1999 and 2003 been extremely wet years while the year 1990 and 2013 were extremely dry. The intensity and magnitude of extreme rainfall indices show a decreasing trend for more than 78% of the rainfall locations while positive trends were observed in the frequency of extreme rainfall indices (R10mm, R20mm, and CDD) with the exception of consecutive wet days (CWD) that shows a decreasing trend. A general warming trend over the catchment was observed through the increase in the annual number of warm days (TX90p), warm nights (TN90p) and warm spells (WSDI). The spatial distribution analysis shows a high frequency and intensity of extremes rainfall indices in the south of the catchment compared to the middle and northern of part of the catchment, while temperature extremes were uniformly distributed over the catchment.

6 February 2018 in Hydrology
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Journal Article
Open access
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JAJoshua Amuzu
Joshua Amuzu
BJBubu P. Jallow
Bubu P. Jallow
AKAmos Tiereyangn Kabo-Bah
Amos Tiereyangn Kabo-Bah
SYSidat Yaffa
Sidat Yaffa
Global Climate Change is one of the dire challenges facing the international community today. Coastal zones are vulnerable to its impacts. An effective approach with long-term prospects in addressing climate change impacts is it’s mainstreaming into development agenda of sectoral policies. A comprehensive risk and vulnerability assessment is a pre-requisite to ensure that the right adaptive response is taken for effective integration into developmental plans. The objective of this study is to evaluate and prioritize risks, vulnerability and adaptation issues of current and anticipated impacts of climate change on the coastal zone of The Gambia. The study will also give a methodological contribution for assessing risks, vulnerability and adaptation from the sub-national to local levels. The relevance of this study will be to create a link between the sub-national and local levels in order to facilitate the integration and mainstreaming of climate change into sectoral and local policies for more climate-resilient communities. This will aid in the promotion of strategic investment of constrained developmental resources to actualize successfully dynamic coping strategies, elude ‘maladaptation’ and less compelling responsive measures. A purposive expert sampling technique was used in selecting respondents for the study. The findings of the study reveal that by the end of the 21st century, the climatic variables likely to have the highest impact on the coastal zone of The Gambia are ‘increased flood severity’ and ‘increased temperature’. The coastal zone of The Gambia showed a high vulnerability to these climate change variables. The suggested adaptive response in addressing the impacts of increased flood intensity in the study area includes; improving regulations for restricting agriculture and livestock grazing activities to improve land cover; strengthening of early-warning systems, among others. The suggested adaptive response in addressing the increase in temperature includes: increase crop diversification and rotation to reduce total crop failure; switching to drought-tolerant crop and animal species, among others.

31 October 2019 in Emerald Emerging Markets Case Studies
Verified
Journal Article
Closed access
KAKwaku Atuahene-Gima
Kwaku Atuahene-Gima
JAJoshua Amuzu
Joshua Amuzu
Learning outcomes: The Farmcrowdy case pursues the following aims: familiarizing students with the concept of business models for agricultural businesses and explaining the key decisions and activities within a business model; recognizing different opportunities for business model innovation by farmers and stakeholders in the agricultural sector; identifying concepts and tools from the business world that can be used in farming and other agribusiness-related ventures; highlighting opportunities for agribusiness firms to engage in business model innovation; and developing a business model canvas that highlights key components of a business model. Case overview/synopsis: Agriculture stands as the leading driver of economies in most African countries. Most people depend on this sector directly or indirectly for their livelihoods on a daily basis. However, due to challenges like climate change and its variability, high initial startups capital, poor pricing, pest attacks, among other factors, people are gradually opting out of this sector. This has implications for employment, food and human security issues for farmers, their families and the society at large. Individual farmers that opt to remain in this sector are often met with challenges accessing technology in adapting to the challenges aforementioned. This decreases their resilience to the impact of climate change and its variability, pest and disease attack, securing loans to expand farming operations, among others. This raises the risks associated with investment in this sector as one cannot be assured of a fixed return on investment at the end of each crop cycle. Investors who opted to manage this risk associated with investment in the agriculture sector had challenges getting an official database of farmers to invest in as well as knowing whether individual farmers are experienced enough and committed to fixed agreements. It is against this backdrop that Onyeka Akumah founded Farmcrowdy in Nigeria with the aim of empowering farmers and connecting investors to right farmers with an assured return on investment at the end of every crop growing or animal-rearing season using online technological packages. The Farmcrowdy business model allowed Nigerians to venture into farming and other agricultural ventures at the touch of a button while empowering local farmers and boosting food production, creating employment for all stakeholders in the agricultural value chain. With ensuing challenges and competitors in the agro-technological industry, Farmcrowdy aims at extending their business model to other West African countries like Ghana. A few suggestions are made to help improve Farmcrowdy business model. First, they can add novel activities to the business model. Second, they can change one or more parties that perform business model activities. Finally, they can link business model activities in new ways like the development of model farms as a training ground for new farmers and the development of a go-back-to nature campaign to end-users of the products from farms. This case can be used by different audiences. The case can be used for teaching students at the graduate level, especially in the development of executive courses on innovation and entrepreneurship, strategy, agricultural technology and innovation. A wealth of supporting materials is available to the Professor, including videos and background information. Complexity academic level: PhD, Doctor of Business Administration, Executive MBA Supplementary materials: Teaching Notes are available for educators only. Please contact your library to gain login details or email support@emeraldinsight.com to request teaching notes. Subject code: CSS 3: Entrepreneurship

30 April 2024 in Management Research Quarterly
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Journal Article
Open access
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SQSetor Quashigah
Setor Quashigah
JAJoshua Amuzu
Joshua Amuzu
Since Millennials form the largest part of today’s workforce, it is prudent to know Millennials' motivation and characteristics that support their retention. Based on data from 348 team leaders and line managers, a hierarchical regression analysis was used to examine the impact of Millennial-specific characteristics and organizational environmental factors on their turnover intentions (MTI). While teamwork and technology orientation had a negative effect on MTI, achievement orientation had a negative impact on MTI. The results revealed a negative relationship after testing the organizational environmental factor, innovation culture, and MTI. Thus, firms should engage in the development of a culture of innovation and teamwork to support Millennials with a high achievement orientation to succeed in an open, transparent organizational structure.

1 February 2018 in Natural Resources and Conservation
Verified
Journal Article
Open access
PDF file
JAJoshua Amuzu
Joshua Amuzu
BJBubu P. Jallow
Bubu P. Jallow
AKAmos Tiereyangn Kabo-Bah
Amos Tiereyangn Kabo-Bah
SYSidat Yaffa
Sidat Yaffa
Coastal systems are predominantly delicate to three key drivers related to Climate Change (CC): Sea Level Rise (SLR); ocean temperature and; ocean acidity. This study focused on the impacts realized from SLR. These variables are anticipated to increase with significant threats to the populace and structures of social, cultural or economic importance along Coastal Zones (CZ). This study seeks to: characterize the trend of annual rainfall, minimum and maximum temperatures from 1986-2016; estimate the land at-risk of being lost to inundation under a 1m SLR scenario and the estimation of the rate of annual land loss for each coastal cell in The Gambia. This study estimates the monetary value of land to be lost and the population at risk of CC impacts in the study area. The results of the study reveal mean annual rainfall increased at a rate of 0.237mm per annum over the CZ. The annual minimum temperature showed a decreasing trend of 0.026 o C while the maximum temperature showed an increasing trend of 0.028 o C annually. By the end of this century, under a 1m SLR scenario, the total land to be lost due to inundation is ~12.46 km 2 (1,246 ha) with a corresponding economic loss of ~US $788 Million (GMD37 Billion) over the CZ. This land loss is predicted to occur at an approximate rate of 6m annually along the CZ of The Gambia. Over 15,560 people per km 2 of land are estimated to be at risk of coastal flooding events in the study area.

5 July 2024 in Management Research Quarterly
Verified
Journal Article
Open access
PDF file
MBMoses Tiffa Baio
Moses Tiffa Baio
JAJoshua Amuzu
Joshua Amuzu
MSMary Sabbah
Mary Sabbah
This study examines the impact of dysfunctional follower behavior on organizational performance in state-owned enterprises (SOEs). Data from a cross-sectional survey design based on 315 responses were analyzed using structural equation modeling, which allowed the formulation of several recommendations. First, the evidence suggests that managers seeking to increase organizational performance should not devote many resources to addressing employees' political deviance. Second, managers aiming to increase or maintain organizational performance in SOEs should devote more time and resources to establishing policies that control employee ownership deviance. Third, managers aiming to increase or maintain organizational performance in SOEs should devote more time and resources to establishing measures to control employee personal aggression.