There is no abstract available for this dissertation.

This thesis studies existence and characterization of optimal solutions to the principal-agent problem with adverse selection for both discrete and continuous problems. The existence results are derived by the abstract concepts of differentiability and convexity. Under the Spence Mirrlees condition, we show that the discrete problem reduces to a problem that always satisfies the linear independence constraint qualification, while the continuum of type problem becomes an optimal control problem. We then use the Ellipsoid algorithm to solve the problem in the discrete and convex case. For the problem without the Spence Mirrlees condition, we consider different classes of constraint qualifications. Then we introduce some easy-to-check conditions to verify these constraint qualifications. Finally we give economic interpretations for several numerical examples. / Graduate

The question that this study addressed was how Catholic educators from diverse experiential backgrounds negotiate personally persuasive and authoritative discourses in fashioning their identities as assistant principals. The inquiry is framed by poststructuralist perspectives on identity and uses as a methodology an ethnographic interview approach in an effort to understand the transition from teacher to assistant principal. Interviews with three first-year assistant principals in two Catholic school districts in a Western Canadian province formed part of the data. To obtain the school district’s perspectives, I also interviewed district-level personnel who were responsible for leadership formation. Documents from the Ministry of Education that included the newly developed provincial standards for principals as well as documents from the two school districts were also analyzed. The research findings reveal that beginning assistant principals negotiate their identities as educational leaders when they assume a role and that the expectations of the role existed before their arrival. These expectations are the authoritative discourses that shape the educational leader within the school district and that are negotiated with the personally persuasive discourses of the leader. The tensions that new assistant principals in the study negotiated were conflicting discourses of leadership and the dissonance between the challenges and affirmations regarding participants’ deeply held values and the traditional institutional demands on administrators and between the role expectations and the autonomous decision making of leaders. The implications of emphasizing questions of identity in leadership development shift the thinking on the assistant principal beyond the organizational structure of the role. School districts must better attend to the development of the identity of their educational leaders by restructuring leadership training programs and ensuring the effectiveness of mentoring programs. New assistant principals must themselves address the differences between role and identity and direct attention to the importance of developing and strengthening their identities as educational leaders.

This thesis introduces the application of discrete Principal Component Analysis (PCA) to corporate governance research. Given the presence of many discrete variables in typical governance studies, I argue that this method is superior to standard PCA that has been employed by others working in the area. Using a dataset of 244 companies listed on the London Stock Exchange in the year 2002-2003, I find that Pearson's correlations underestimate the strength of association between two variables, when at least one of them is discrete. Accordingly, standard PCA performed on the Pearson correlation matrix results in biased estimates. Applying discrete PCA on the polychoric correlation matrix, I extract from 28 corporate governance variables 10 significant factors. These factors represent 8 main aspects of the governance system, namely auditor reputation, large shareholder influence, size of board committees, social responsibility, risk optimisation, director independence level, female representation and institutional ownership. Finally, I investigate the relationship between corporate governance and a firm's long-run share market performance, with the former being the factors extracted. Consistent with Demsetz' (1983) argument, I document limited explanatory power for these governance factors.

Thesis (Ph.D.)--University of Tulsa, 1993. / Bibliography: leaves 55-57.

Thesis (Ed. D.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 143-156). Also available via the Internet.

Thesis (Ph. D.)--University of Hong Kong, 2000. / Includes bibliographical references (leaves 278-292).

Thesis (M.S.)--West Virginia University, 2002. / Title from document title page. Document formatted into pages; contains vi, 67 p. : ill. (some col.), col. maps. Includes abstract. Includes bibliographical references (p. 65-67).

Thesis (Ed.D.)--Liberty University School of Education, 2009. / Includes bibliographical references.

Thesis (Ed. D.)--University of Missouri-Columbia, 2000. / Typescript. Vita. Includes bibliographical references (leaves 105-108). Also available on the Internet.