This dissertation is composed of three essays examining adoption and impact of agricultural technologies. The first two papers estimate adoption and impact of iron-biofortified bean varieties in Rwanda. These varieties are bred to have high iron content and high yields to improve the health and livelihoods of rural households. The third essay estimates the spillover effects of seed producer groups (SPGs) in Nepal on nearby non-SPG member households. These SPGs were established to produce and sell stress tolerant rice varieties (STRVs) and other improved rice varieties and were trained on a number of improved management practices for rice cultivation. The first essay, titled "Promoting rapid and sustained adoption of biofortified crops: What we learned from iron-biofortified bean delivery approaches in Rwanda" uses duration modeling to estimate how a number of delivery approaches designed to distribute iron-biofortified bean varieties to farmers have increased the speed of adoption, reduced the speed of disadoption, and increased the speed of readoption of iron-biofortified bean varieties. We find that these delivery approaches have been very effective at promoting adoption and reducing disadoption. Policy makers can learn lessons from this research regarding distribution of biofortified crops in Rwanda and elsewhere. The second essay, titled "The impact of iron-biofortified bean adoption on bean productivity, consumption, purchases and sales" examines the impact of adoption of the most popular iron-biofortified bean variety, RWR2245, on adopting households. We use a control function approach with instrumental variables related to iron-biofortified bean delivery approaches to control for selection bias of adoption. We find that adoption increases yield, household bean consumption from own-production, and bean sales while reducing bean purchases. This implies that iron-biofortified bean adoption has a strong potential to improve nutrition and food security of adopting households, as beans make up a large portion of the average Rwandan diet. The third and final essay, titled "The spillover effects of seed producer groups on non-member households in local communities in Nepal" examines the spillover benefits of SPGs onto non-member farmers in villages with an SPG or are adjacent to a village with an SPG. We find that SPGs have increased adoption of STRVs, improved the seed replacement rate, and increased use of some best management practices among non-members within SPG villages, and have increased adoption of the STRVs in at least one past seasons among non-members in adjacent villages. / Doctor of Philosophy / This dissertation consists of three essays that examine adoption and impact of agricultural technologies that are designed to help rural households in developing countries improve their livelihoods. The first two papers focus on iron-biofortified bean varieties in Rwanda. These bean varieties have high iron content and are also high yielding. They are designed to combat iron-deficiency within the country. The government of Rwanda distributed the bean varieties to households using a number of different delivery approaches. We study the influence of these approaches and find that households who are closer to them adopt the varieties faster and disadopt the varieties more slowly, indicating that they have been successful in promoting adoption. The second paper of this dissertation studies the impact that one of the iron-biofortified bean varieties has had on adopting households. We find that adoption increases household bean yields and bean consumption from own-production, while reducing bean purchases and increasing the likelihood that a household sells beans. This provides evidence that iron-biofortification improves iron consumption for households that adopt the varieties, because they consume greater quantities of their iron-rich bean harvests, and improves household income through reductions in purchases and increased likelihood of sales. Finally, our third paper examines Seed Producer Groups (SPGs) in Nepal in which member farmers produce and sell rice varieties that are tolerant to drought. We find that for non-SPG members, living in or near a village with an SPG increases their likelihood of growing a drought-tolerant variety. Overall, this dissertation contributes to the literature on adoption and impacts of agricultural technologies and provides useful guidelines for policy makers wishing to promote these and other technologies. This can inform future funding allocation and maximize impacts of development projects.

No / The available literature suggest that the research on radio frequency identification (RFID)-related issues is largely concentrated on technical, organizational and implementation aspects, and comparatively lesser attention has been invested in understanding the use aspect of such library management systems. The purpose of this paper is to gain an understanding into the factors that influence the use of RFID systems in the library context by empirically testing the relevant constructs from the extended technology acceptance model (TAM). A questionnaire-based survey approach was employed for collecting the relevant data from 197 respondents. The respondents were the active users of a RFID-based library system. Findings from this study suggested that perceived usefulness and system quality positively influence the user attitude, and user attitude and system quality significantly influence the use of the RFID services. The paper concludes with outlining the salient points, limitations, and future research directions. The paper evaluates the role of a set of innovation attributes on the acceptance of RFID integrated systems in libraries. Owing to the scant literature availability in empirical investigations on adoption of RFID systems in libraries, the findings from this paper add value to the existing literature in this field, and also to the literature on the TAM model, with the empirical findings being of use to the aspirant libraries looking toward integrating RFID enabled systems.

Yes / Despite the rapid growth of Internet banking (IB), customers in developing countries still hesitate to adopt this technology and its use in the Middle East remains low. This study aims to identify and examine the factors that predict behavioural intention and adoption of IB in Jordan. Four factors – hedonic motivation, habit, self-efficacy and trust – are proposed in a conceptual model. Data was collected by means of a survey with bank customers in Jordan. Structural equation modelling (SEM) was used to analyse the data. The results strongly supported the conceptual model. Further, hedonic motivation, habit, self-efficacy and trust were all confirmed to have a significant influence on behavioural intention. Trust was found to be strongly predicted by both hedonic motivation and self-efficacy. This study provides both academics and practitioners with an insight into the factors that can be used to encourage customer adoption of IB specifically in a Middle East context.

Based on grounded theory and thematic analysis of 70 in-depth interviews conducted over 32 months (from November 2007 to June 2010) with domain scientists, computational technologists, supercomputer center administrators, program officers at the National Science Foundation, social scientists, policy analysts, and industry experts, this dissertation explores the rationalities behind initial adoption of cyberinfrastructure for e-science in the early 21st century U.S. This dissertation begins with Research Question 1 (i.e., how does cyberinfrastructure's nature influence its adoption process in early 21st century U.S.?) and identifying four areas of challenging conditions to reveal a lack of trialability/observability (due to the participatory/bespoke nature), a lack of simplicity (due to the meta/complex characteristic), a lack of perceived compatibility (due to the disruptive/revolutionary quality), and a lack of full control (due to the community/network property). Then analysis for Research Question 2 (i.e., what are the rationalities that drive cyberinfrastructure adoption in early 21st century U.S.?) suggests that there are three primary driving rationalities behind adoption. First, the adoption of cyberinfrastructure as a meta-platform of interrelated technologies is driven by the perceived need for computational power, massive storage, multi-scale integration, and distributed collaboration. Second, the adoption of cyberinfrastructure as an organizational/behavioral practice is driven by its relative advantages to produce quantitative and/or qualitative benefits that increase the possibility of major publications and scientific reputations. Third, the adoption of cyberinfrastructure as a new approach to science is driven and maintained by shared visions held by scientists, technologists, professional networks, and scientific communities. Findings suggests that initial adoption by pioneering users was driven by the logic of quantitative and qualitative benefits derived from optimizing cyberinfrastructure resources to enable breakthrough science and the vision of what is possible for the entire scientific community. The logic was sufficient to drive initial adoption despite the challenging conditions that reveal the socio-technical barriers and risky time-investment. Findings also suggest that rationalization is a structuration process, which is sustained by micro individual actions and governed by macro community norms simultaneously. Based on Browning’s (1992) framework of organizational communication, I argue that cyberinfrastructure adoption in the early 21st century lies at the intersection of technical rationalities (i.e., perceived needs, relative advantages, and shared visions) and narrative rationalities (i.e., trialability, observability/communicability, simplicity, perceived compatibility, and full control). / text

Thesis advisor: Ruth McRoy / Thesis advisor: Summer Hawkins / Adoptive parenting contributes to the dramatic growth in lesbian and gay (LG) parenting. Research on adoptive families has mostly focused on heterosexual parent families and the limited research on LG parenting has primarily emphasized child adjustment outcomes. This three-paper dissertation utilized subsamples from a large (N=1616) and recent (2012-2013) comprehensive dataset, The Modern Adoptive Families Study, designed to compare family characteristics, experiences, and adjustment outcomes across different types of adoptive families, especially families headed by sexual minority parents. The Minority Stress model is used to frame a deeper understanding of parenting processes in heterosexual and lesbian and gay parent adoptive families. This framework takes into account the potential for families, led by sexual minority parents, to encounter discrimination and suggests processes may exist within the family to help buffer interpersonal and systemic bias. Paper 1 used logistic regression to examine the associations of adoptive parents’ satisfaction with their mental health services and their pediatrician. Pediatrician satisfaction was specifically related to the parental perception of their provider’s understanding of their minority status; based on 1) adoptive family status, 2) parental sexual orientation, and 3) transracial adoption status. Overall, 51% of the sample of parents who sought mental health services reported satisfaction. Satisfaction was positively associated with being a gay father, having a higher household income, and having a child whose race was identified as Asian. Satisfaction was negatively associated with having a child older than 11 years old. Of parents who reported on their satisfaction with pediatricians, 82% of parents reported satisfaction. Having a higher household income was positively associated with respondents’ satisfaction. Paper 2 used confirmatory factor analysis (CFA) to explore how findings from two racial socialization measures compared across parental sexual orientation, in transracial adoptive families. The scales measured parental endorsement of cultural competency pertaining to race and related self-efficacy enacting racial socialization practices. In Paper 3, cultural socialization theory was used to investigate parents’ endorsement of socialization related to being raised in a same-sex headed family with two newly developed scales using exploratory factor analysis (EFA). Results of these studies will help to inform policy and practice by addressing critical questions impacting a growing number of adoptive families, especially those headed by sexual minority parents. Contributions to the literature include findings about parenting practices, perceptions, experiences, and relationship dynamics within lesbian, gay, and heterosexual adoptive parent families. / Thesis (PhD) — Boston College, 2018. / Submitted to: Boston College. Graduate School of Social Work. / Discipline: Social Work.

This thesis explores the experiences that birth mothers face in adoption proceedings within a socio-legal context. With analysis of data from interviews with 32 birth mothers synthesised with the relevant provisions of the Adoption and Children Act 2002, it is argued that ingrained unfairness and a lack of accountability exists in the legal and administrative system where birth mothers' rights are concerned. The requirement for fairness in adoption practice is an underlying principle of jurisprudence from the European Court of Human Rights, with emphasis on the right to family life under Article 8 of the Convention. Analysis extends to the social problems of blame and stigmatizing of birth mothers which originates from those agencies involved in the adoptions. It highlights the perspectives and voices of birth mothers, who are seldom the focus in leading discourses of professional practice in this area. This research moves some way towards equalising this disparity by acknowledging their experiences and arguing that what they have to say should be noted by professionals involved in adoption practice. The findings demonstrate the interrelationship between birth mothers and the law, with critical examination of the results in relation to previous research and jurisprudence from the family courts. This is work by a researcher with 'insider status' of one who shares the 'birth mother' identity with the participants. In order to validate the study, the research methodology is underpinned with reflexivity which demands that the researcher examines her own feelings, reactions, and motives and how this influences the analysis and the findings. This approach lessens the risk of bias and authenticates research by ensuring transparency. The original contribution to knowledge required for a doctoral thesis is the socio-legal approach to the methodology, the primary data generated from interviews with birth mothers and the subsequent findings which demonstrate the inconsistency between the law and their experiences of adoption practice.

The purpose of this quantitative research project was to examine what services birthparents identified as needed prior to the adoption and post-adoption, what mental health issues and symptoms they are facing, and what the impact of adoption is on birthparents. Data were gathered through an online quantitative survey that relied on a convenient, purposive, and snowball sampling. The surveys were distributed through various birthparent support group websites, and Facebook pages and groups. Results of the research showed that participants that placed a child for adoption prior to 1990 had less access to services than those participants whose adoption occurred after 1990. However, participants in both year groups valued and wanted therapy/counseling, case management services, and support groups equally. The most common mental health symptoms among participants were depression and generalized anxiety and the majority of participants felt that their adoption experience contributed to their mental health symptoms. With this comprehensive understanding, adoption professionals can tailor pre and post-adoption services to meet the unique mental health needs of birthparents.

This dissertation investigates the capacity required by an internet application in tandem with the network connection type (dial-up or broadband). An internet user’s experience in accessing various types of applications with either high bandwidth or low bandwidth is examined in a consumer choice model of broadband adoption. A consumer implicitly values the time-saving benefits derived from a higher speed internet connection used to access a particular internet application, and compares those utility benefits to the higher price of high speed connection services in making the decision to shift to broadband or remain with a dial-up connection. We find that using broadband rather than dial-up to run bandwidth intensive applications presents considerable gains in the implicit value of time saved. Assuming that internet users are rational utility maximizing agents, a logit model is used to calculate the likelihood of broadband adoption as a function primarily of the nature/type of the internet applications (“elastic or inelastic”). While the empirical results are generally consistent with our hypothesis that consumers are more likely to subscribe to broadband if they regularly run applications that are bandwidth intensive, the results vary somewhat by model specification, and are potentially sensitive to controlling for endogeneity. Correcting for endogeneity remains the major challenge in extending this research. Research Question: What is the relationship between consumer valuation of the net benefits of using bandwidth intensive applications and the adoption of broadband internet? Hypothesis: The less a consumer requires bandwidth intensive applications; the lower is the likelihood of switching from a low level bandwidth internet service like dial-up to a high level bandwidth internet type like broadband. While this relationship may appear obvious, it has not been systematically investigated or measured, nor has its importance in affecting lags in broadband adoption been adequately appreciated.

Organizational adoption of information technology is an important decision for modern enterprises. Proper use of technology can increase benefits and competitive advantage. Inappropriate use could cause failure. Most previous literature focuses on treating technology adoption as a rational decision based on the functional needs of an organization. In many cases, however, technology adoption is not due to functional needs but environmental or peer pressure (called symbolic or ceremonial adoption). Different motivations for adoption may lead to different outcome. In addition, there is no generally accepted organizational adoption model that can include all key factors into consideration. Therefore, this study tries to understand what factors will affect an organization¡¦s adoption of a new information technology or use an information technology and whether different purposes (intangible value vs. tangible value) will affect the adoption or usage of information technology in organizations. The framework of this study was extended from the Fit-Viability Model to include the internal organizational factors and external environmental factors. We conducted a survey study and use PLS to analyze the collected data. The results show that the extended FV model can interpret organizational IT adoption and IT usage. The purpose of adoption did have effect on the intention to adopt information technology. In the symbolic adoption situation, TEF and viability had significant impacts on organizational intention to adopt; and in the functional adoption situation, TTF and viability had significant impacts on organizational intention to adopt. Different purposes of adoption have less significant effect on the actual use and performance of information system. TTF and actual use had significant impacts on organizational performance, and viability also had significant impacts on actual use of information technology in both situations. In other words, organizations can also benefit from IT adoption even if the original motivation was symbolic.

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