Blind signatures make anonymity a reality in digital cash systems. However, when deployed in digital cash systems such as eCash, blind signatures raise such drawbacks as bad scalability and unfair anonymity. In this thesis, efforts have been done to combine digital signatures and a mechanism called "money-exchange" found in NetCash to build a new digital cash system. In the new system, two forms of digital cash are introduced: digital notes and digital coins. "Money-exchange" is extended to permit cash exchange from one form to the other. At the side of the digital cash issuer, at least two databases are maintained to detect double-spending. The new digital cash system is secure due to its deployment of both symmetric and asymmetric encryption algorithms. The combination of blind signatures and the extended money-exchange mechanism offers unconditional and fair anonymity, and it makes the system more scalable with the regards to the number of clients served.

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Thesis (M.S.)--Ohio University, August, 2002. / Title from PDF t.p.

Thesis (Ph.D.)--Indiana University, Kelley School of Business, 2007. / Source: Dissertation Abstracts International, Volume: 68-09, Section: A, page: 4005. Advisers: Gregory F. Udell; Xiaoyun Yu. Title from dissertation home page (viewed May 5, 2008).

Thesis (Ph.D.)--Indiana University, 2005. / Source: Dissertation Abstracts International, Volume: 66-08, Section: A, page: 3030. Chair: John W. Maxwell. Title from dissertation home page (viewed Oct. 5, 2006).

This thesis aims to explore the experiences of those individuals involved in the phenomenon of cross-sector collaborations within the Fast-Moving Consumer Goods (FMCG) global food sector. The research is situated within a landscape of diminished availability of funding for Non-profit organizations (NPOs) in which new ways of achieving sustained funding are being sought. Coupled with the emergence of increased Corporate Social Responsibility (CSR) activity from Commercial Entities (CEs), in part driven by societal pressure for companies to ‘do more' and the resultant motivation for CEs to deliver effective CSR programmes, cross-sector collaboration appears to offer a methodology through which both sides can achieve their respective aims. The research gap identified focuses on the lack of understanding of the micro-processes, or attributes of the relationship, at the micro-level of partnership interaction. The sample group was accessed from individuals with extensive experience of NPO-CE collaborations within the area of FMCG global food production. This access allowed the experiences of some of these individuals to be gathered and explored within this study. Data collection techniques took the form of semi-structured interviews with twelve senior executives. An interpretivist approach was employed using a phenomenological research design to elicit an understanding of the experiences of the respondents' involvement with NPO-CE collaborations. The intention was to afford the respondents the opportunity to recount their own experiences in their own terms and with their own emphasis on what was important to them within the broad structure provided by the three core categories drawn from the literature: value creation, partnership processes and relationship dynamics. A thematic data analysis was conducted using the framework developed from the initial literature review and subsequent agenda developed. The findings of the study have numerous implications for both academics and practitioners. Firstly, the study contributes to knowledge through the increased understanding of the nature of NPO-CE collaboration at the micro-process level from the perspective of the individual and provides insight into the nature of such relationships. It suggests a number of attributes that are viewed as significant by those involved in NPO-CE relationships at the individual level, including the confirmation of the importance of trust, effective leadership and formal and informal control measures. Secondly, numerous implications emerge for the practicing manager from the study, including perspectives on the demands, risks and rewards at both the individual and organizational level for managers engaged in cross-sector collaborations. Ultimately the study suggests that the traditional linear temporal framework for cross-sector collaboration development should be viewed as more cyclical in nature, and that the concomitant organizational demands of such an approach should be reflected in the decision-making processes ahead of any potential NPO-CE collaboration. The essence of this revised framework is presented in the form of a conceptual model The exploratory nature of the study has facilitated the identification of areas where future research is required, including: the challenges associated with implementing strategic agility within NPO-CE collaborations; exploring mechanisms for building and maintaining trust within a sustained collaboration; and the potential to develop the conceptual model into a decision-making framework for managers of future NPO-CE collaborations.

<p> A majority of marketers plan to increase their investment in online marketing messaging to reach an expanding population of potential consumers using online social networking platforms. The problem addressed in this study was a marketer&rsquo;s inability to determine the most effective video advertising in a social networking site to increase consumer attitude and engagement. A non experimental quantitative survey study was used to gather data to test a unique hypothesized structural equation model based on the theory of advertising involvement and the affect transfer theory. The purpose was to examine the relationships among the factors of consumer attitude, defined as attitude toward the advertising and attitude toward the brand, the second order construct of advertising involvement, and the consumer engagement behaviors of sharing intention and purchase intention. Participants were recruited from the student body of a community college located in a major metropolitan city in the southwest United States. Data analysis consisted of summary descriptive statistics, confirmatory factor analysis (CFA), and structural equation modeling (SEM). The objective of the research was to contribute to the theoretical body of knowledge by demonstrating the generalizability of the theory of advertising involvement to video advertising. The measurement model was a good fit to the data, CFI = 1.00, RMSEA = 0.000. Findings indicated that the theory of advertising involvement, first validated in the context of static advertising, is useful in understanding the relationship of the factors in the context of video advertising. </p><p> Attitude toward the advertising played a significant mediating role between advertising involvement and the two factors, attitude toward the brand and sharing intention. Attitude toward the brand played a significant mediating role between advertising involvement and the two factors of sharing intention and purchase intention. Attitude toward the advertising had no significant influence on purchase intention. The structural model can serve as a useful tool in evaluating video advertising in a social networking site. Future research with the model should be conducted with different types of products, different types of videos, and different consumer populations.</p><p>

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