Essays on Crowdfunding Adoption and Behavior

The aim of this dissertation is to examine aspects of crowdfunding adoption and behavior. Accordingly, the overarching research question answered by this dissertation is: what influences crowdfunding backers’ contribution intentions and behaviors? The dissertation answers this question while focusing on dimensions of trust, community, and technological acceptance. The dissertation is made up of three studies with one conceptual article (study 1), and two empirical studies (study 2 and 3). The conceptual study marries marketing and trust literatures and contextualizes their implications for the crowdfunding context. The result is the development of a framework of trust-based marketing strategies for crowdfunding campaigns, building on the understanding of the critical role played by trust in crowdfunding adoption by prospective backers. The empirical studies (i.e., study 2 and 3), are based on the analyses of empirical data collected from actual platform users, while using Structural Equation Model techniques. These studies examine the antecedents of backers’ contribution intentions and behavior, specifically in the context of reward crowdfunding in Finland. Study 2 explains backers’ intention and behavior by testing the extensive version of the technology acceptance model (TAM). It confirms the relevance of the TAM model for properly capturing influential antecedents of backers’ financial contribution intentions and behavior and further elaborates on the specific influences of backers’ experiences and voluntariness, which challenge existing conceptualizations from other information and communication technology -related contexts. Study 3 builds on the view of crowdfunding as an embedded phenomenon in online communities, to develop a community-based crowdfunding framework for explaining backers’ contribution intentions and behaviors, while highlighting the roles of community identification and community trust.publishedVersio

Multilevel Particle Filters for L\'evy-driven stochastic differential equations

We develop algorithms for computing expectations of the laws of models associated to stochastic differential equations (SDEs) driven by pure L\'evy processes. We consider filtering such processes and well as pricing of path dependent options. We propose a multilevel particle filter (MLPF) to address the computational issues involved in solving these continuum problems. We show via numerical simulations and theoretical results that under suitable assumptions of the discretization of the underlying driving L\'evy proccess, our proposed method achieves optimal convergence rates. The cost to obtain MSE $O(\epsilon^2)$ scales like $O(\epsilon^{-2})$ for our method, as compared with the standard particle filter $O(\epsilon^{-3})$

A Trust-Based Crowdfunding Campaign Marketing Framework: Theoretical Underpinnings and Big-Data Analytics Practice

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Explaining Reward Crowdfunding Backers’ Intentions and Behavior

Earlier research seeking to understand crowdfunding adoption has drawn on social psychology, trust, signaling, and well-being theories. Despite its wide appeal and use, the Technology Acceptance Model (TAM) has received little attention in explaining the adoption of crowdfunding platforms. Accordingly, in the current study we examine the applicability of two versions of this framework, including the original TAM1, and the extended TAM2 frameworks. Data was collected through a survey distributed to the users of Finland’s leading reward crowdfunding website – Mesenaatti. Analyses of 556 observations exhibit support for all hypotheses underlying both TAM frameworks, with two exceptions. Counter to expectations, voluntariness does not moderate the effect of subjective norms on contribution intentions, and the effect of perceived ease-of-use is primarily mediated by perceived usefulness, rather than directly affecting intentions

The impact of private equity on firms in emerging markets : evidence from Ghana

Master's thesis Business Administration BE501 - University of Agder 2017In the last decade, most emerging markets have been associated with new investment opportunities and some growth prospects that attract private equity (hereafter, PE) investors. Regions with growing interest of PE investments include Africa and Asia. Research on PE impact on recipient firms in developed economies are voluminous and has proven that PE plays a remarkable role in firms’ success. Until now, such performance implications on firms in emerging markets are limited in study. Our study focuses on the impact of PE funding on financial performance of firms in emerging markets using Ghana as a case. Using data from both the investors and fund recipients of PE, we empirically assess how the presence and ownership stake of PE investors affect financial performance of recipient firms. We also investigate the influence of post-investment corporate governance mechanisms on the overall financial performance of the recipient firms. We find that, PE backed firms have relatively higher returns on equity (ROE) and growth rate than listed firms though the differences are not statically significant. Also, we find that recipient firms with higher PE ownership stake have high ROE and growth rate than recipient firms with lower PE ownership stake. These findings recapitulate that, though PE investment significantly affects the performance of recipient firms positively, the PE industry is still at a growing stage and young in most emerging markets hence long-term benefits of PE investments would take time to be realized. We also find that PE recipient firms that involve the founders in management irrespective of the stake acquired by the PE investors outperform listed firms in terms of ROE. Finding on the board size of the recipient firms proves that, large board size affects ROE negatively. We therefore conclude that infusion of PE funds, through minority or majority stake, invariably, has a positive influence on recipient firms’ financial performance but higher stake enhances such stimuli. Also, corporate governance mechanisms play a major role in enhancing the positive relationship between PE and financial performance of recipient firms. Our findings are robust and they are empirically and theoretically supported. The findings should however be generalized with caution. This is because, as literature suggests, performance improvements that result from PE may take time to be realized and institutional context may also limit the generalisability of the finding among emerging markets that have vast institutional differences from Ghana. Keywords: Private equity, corporate governance, emerging markets, financial performanc

Cigarette smoking during breastfeeding in Papua New Guinea: Prevalence and demographic and socio-economic predictors

Background Cigarette smoking during breastfeeding is reported to contribute to significant changes in the composition of breast milk not only by reducing its protective features but also affecting infants' response to breastfeeding and breast milk. However, studies on the prevalence of cigarette smoking and associated factors during breastfeeding are limited in Papua New Guinea (PNG). This study estimates the prevalence of cigarette smoking and its association with demographic and economic factors among breastfeeding women in PNG. Methods We used weighted survey data from the 2016-2018 PNG Demographic and Health Survey (PNGDHS). A weighted sample of 3, 822 women who were breastfeeding during the survey were included in the study. The outcome variable in the present study is current cigarette smoking. A multiple logistic regression analysis was used to estimate the association between current cigarette smoking status and socio-demographic and economic variables of breastfeeding women. The regression analysis results were reported using adjusted odds ratios (aOR) with their respective 95% confidence intervals (CIs). Results From the weighted sample, the prevalence of cigarette smoking among breastfeeding women was 21.9%; of which 60.8% smoked daily. The mean number of cigarettes smoked in the last 24 hours preceding the survey was 6.05(SD = 5.99). Multiple logistic regression analysis revealed that breastfeeding women who were from the Momase (aOR: 2.337, CI: 1.786-3.058, p<0.001) and Highlands (AOR: 1.589, CI: 1.213-2.082, p = 0.001), had no religious affiliation (aOR: 3.665, CI: 1.235-10.877, p = 0.019), and households with daughters as household heads (aOR: 1.901, CI: 1.231-2.935, p = 0.004) and being in more than one union (aOR: 2.374, CI: 1.805-3.123, p<0.001) were significantly more likely to smoke cigarette compared to women from southern region, those affiliated to Anglican church, those with husband as household heads, and being in one union respectively. Conclusion Cigarette smoking among breastfeeding women in PNG is relatively high, and region of residence, religion, relationship to household head, and the number of unions remain independent predictors. Interventions should target the individual socio-economic and cultural contexts within which breastfeeding occurs

Substance use and adolescent injuries: a multi-country analysis of the association and mediating effect of interpersonal violence among 122,945 in-school paediatric populations in 29 countries

BackgroundAdolescent use of substances and injury experiences such as head injury have become increasingly prevalent. However, information regarding their association and the potential pathways linking them remains limited. This study examined the association between substance use and injuries, emphasizing the mediating role of interpersonal violence among adolescents.MethodsWe employed a multi-country analysis of Global School-based Health Surveys of 122,945 in-school adolescents aged 11–18 from 29 countries. This study was a cross-sectional school-based, nationally representative study developed by the World Health Organization and the United States Centers for Disease Control and Prevention, other United Nations allies, and country-specific institutions. Random-effects meta-analysis was performed to estimate the overall prevalence of injury and substance use and the I-square (I2) statistic was used to investigate the between-country heterogeneity. Logistic regression models were fitted to examine the association between substance use and injuries. A path analysis was used to examine the potential mediation effect of interpersonal violence and employed decomposition of effects into total, direct, and indirect.ResultsPrevalence of substance use and injuries were 33.6% (95%CI = 28.5, 38.6%) and 41.7% (95%CI = 37.3, 46.1%), respectively. Substance use (37.8% vs. 29.4%, p = 0.001) and injuries (47.3% vs. 36.4%, p = 0.001) were significantly higher among male adolescents than females, respectively. After adjustment, substance users had 40% higher odds of injuries. The path analysis showed a mediation effect of perpetration of and victimization by interpersonal violence on the association of substance use with injuries, with total positive effects of perpetration [β = 0.18; 95%CI = 0.16, 0.19; p = 0.001] and victimization on injuries [β = 0.22; 95%CI = 0.21, 0.24; p = 0.001]. In a further subgroup analysis, tobacco users were 3.98 times more likely to sustain a gunshot wound whiles marijuana users had 2.81 times higher odds of sustaining gunshot wounds. Cigarette smokers had 45% lower odds of sustaining cut/stab wounds. Alcohol users were 53% more likely to sustain concussion/head injury and two and half times more likely to sustain gunshot wound.ConclusionA significant association exists between substance use and severe injuries among adolescents, mediated by interpersonal violence exposure. Our findings may have utility in informing substance use and interpersonal violence control policies and interventions to address adolescent injuries

Preparing for future outbreaks in Ghana: An overview of current COVID-19, monkeypox, and Marburg disease outbreaks

Amidst the ongoing COVID-19 pandemic, Ghana is currently grappling with simultaneous outbreaks of Marburg virus disease and human monkeypox virus. The coexistence of these outbreaks emphasizes the imperative for a collaborative and global approach to enhance surveillance and expedite case detection. While Ghana has made efforts to respond to these outbreaks, this paper outlines the lessons learned and proposes recommendations in this regard. It is crucial to intensify response efforts at the local, regional, and national levels to effectively contain the spread of these infectious diseases. Therefore, this paper suggests prioritizing the following recommendations as crucial for assisting Ghana in adequately preparing for future outbreaks and safeguarding global public health: strengthening surveillance system through digitization, rapid and effective response; risk communication and community engagement; healthcare system readiness; and research and collaboration. Also, prioritizing building healthy public policies and developing personal skills of health personnel across the country is key for future outbreak response

Barriers to formal healthcare utilisation among poor older people under the livelihood empowerment against poverty programme in the Atwima Nwabiagya District of Ghana

Abstract: Background: Even though there is a growing literature on barriers to formal healthcare use among older people, little is known from the perspective of vulnerable older people in Ghana. Involving poor older people under the Livelihood Empowerment Against Poverty (LEAP) programme, this study explores barriers to formal healthcare use in the Atwima Nwabiagya District of Ghana. Methods: Interviews and focus group discussions were conducted with 30 poor older people, 15 caregivers and 15 formal healthcare providers in the Atwima Nwabiagya District of Ghana. Data were analysed using the thematic analytical framework, and presented based on an a posteriori inductive reduction approach. Results: Four main barriers to formal healthcare use were identified: physical accessibility barriers (poor transport system and poor architecture of facilities), economic barriers (low income coupled with high charges, and non-comprehensive nature of the National Health Insurance Scheme [NHIS]), social barriers (communication/language difficulties and poor family support) and unfriendly nature of healthcare environment barriers (poor attitude of healthcare providers). Conclusions: Considering these barriers, removing them would require concerted efforts and substantial financial investment by stakeholders. We argue that improvement in rural transport services, implementation of free healthcare for poor older people, strengthening of family support systems, recruitment of language translators at the health facilities and establishment of attitudinal change programmes would lessen barriers to formal healthcare use among poor older people. This study has implications for health equity and health policy framework in Ghana

Air pollution perception in ten countries during the COVID-19 pandemic

NTNU Norwegian University of Science and TechnologypublishedVersionPaid Open AccessUNIT agreemen