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Description
Random Forests is a statistical learning method which has been proposed for propensity score estimation models that involve complex interactions, nonlinear relationships, or both of the covariates. In this dissertation I conducted a simulation study to examine the effects of three Random Forests model specifications in propensity score analysis. The results suggested that, depending on the nature of data, optimal specification of (1) decision rules to select the covariate and its split value in a Classification Tree, (2) the number of covariates randomly sampled for selection, and (3) methods of estimating Random Forests propensity scores could potentially produce an unbiased average treatment effect estimate after propensity scores weighting by the odds adjustment. Compared to the logistic regression estimation model using the true propensity score model, Random Forests had an additional advantage in producing unbiased estimated standard error and correct statistical inference of the average treatment effect. The relationship between the balance on the covariates' means and the bias of average treatment effect estimate was examined both within and between conditions of the simulation. Within conditions, across repeated samples there was no noticeable correlation between the covariates' mean differences and the magnitude of bias of average treatment effect estimate for the covariates that were imbalanced before adjustment. Between conditions, small mean differences of covariates after propensity score adjustment were not sensitive enough to identify the optimal Random Forests model specification for propensity score analysis.
ContributorsCham, Hei Ning (Author) / Tein, Jenn-Yun (Thesis advisor) / Enders, Stephen G (Thesis advisor) / Enders, Craig K. (Committee member) / Mackinnon, David P (Committee member) / Arizona State University (Publisher)
Created2013
Description
Owner organizations in the architecture, engineering, and construction (AEC) industry are presented with a wide variety of project delivery approaches. Implementation of these approaches, while enticing due to their potential to save money, reduce schedule delays, or improve quality, is extremely difficult to accomplish and requires a concerted change management effort. Research in the field of organizational behavior cautions that perhaps more than half of all organizational change efforts fail to accomplish their intended objectives. This study utilizes an action research approach to analyze change message delivery within owner organizations, model owner project team readiness and adoption of change, and identify the most frequently encountered types of resistance from lead project members. The analysis methodology included Spearman's rank order correlation, variable selection testing via three methods of hierarchical linear regression, relative weight analysis, and one-way ANOVA. Key findings from this study include recommendations for communicating the change message within owner organizations, empirical validation of critical predictors for change readiness and change adoption among project teams, and identification of the most frequently encountered resistive behaviors within change implementation in the AEC industry. A key contribution of this research is the recommendation of change management strategies for use by change practitioners.
ContributorsLines, Brian (Author) / Sullivan, Kenneth (Thesis advisor) / Wiezel, Avi (Committee member) / Badger, William (Committee member) / Arizona State University (Publisher)
Created2014
Description
Qualifications based selection (QBS) of construction services uses a variety of criteria to evaluate proponents and select a contractor for the project. The criteria typically fall into three categories: past performance and technical capability, key personnel, and price, with price often being considered the most important factor in selection. Evaluation and the merits of the key personnel category is not well described or discussed in research. Prior research has investigated the evaluation criteria elements and their ability to differentiate proponents. This case study uses QBS evaluation data from fifty-eight construction projects to show that use of a structured interview process provides the highest level of differentiation of qualifications of proponents, as compared to the proposed price and the technical proposal. The results of the analysis also indicate: 1) the key personnel element (the interview) is statistically more important than price,
2) Contractors who propose on projects using QBS should use their best people in proposal response, and 3) Contractors should educate/prepare their teams for interviews, people count.
2) Contractors who propose on projects using QBS should use their best people in proposal response, and 3) Contractors should educate/prepare their teams for interviews, people count.
ContributorsSawyer, Jeff T (Author) / Sullivan, Kennth S (Thesis advisor) / Wiezel, Avi (Committee member) / Badger, William (Committee member) / Arizona State University (Publisher)
Created2014
Description
ABSTRACT Facility managers have an important job in today's competitive business world by caring for the backbone of the corporation's capital. Maintaining assets and the support efforts cause facility managers to fight an uphill battle to prove the worth of their organizations. This thesis will discuss the important and flexible use of measurement and leadership reports and the benefits of justifying the work required to maintain or upgrade a facility. The task is streamlined by invoking accountability to subject experts. The facility manager must trust in the ability of his or her work force to get the job done. However, with accountability comes increased risk. Even though accountability may not alleviate total control or cease reactionary actions, facility managers can develop key leadership based reports to reassign accountability and measure subject matter experts while simultaneously reducing reactionary actions leading to increased cost. Identifying and reassigning risk that are not controlled to subject matter experts is imperative for effective facility management leadership and allows facility managers to create an accurate and solid facility management plan, supports the organization's succession plan, and allows the organization to focus on key competencies.
ContributorsTellefsen, Thor (Author) / Sullivan, Kenneth (Thesis advisor) / Kashiwagi, Dean (Committee member) / Badger, William (Committee member) / Arizona State University (Publisher)
Created2011
Description
Current information on successful leadership and management practices is contradictory and inconsistent, which makes difficult to understand what successful business practices are and what are not. The purpose of this study is to identify a simple process that quickly and logically identifies consistent and inconsistent leadership and management criteria. The hypothesis proposed is that Information Measurement Theory (IMT) along with the Kashiwagi Solution Model (KSM) is a methodology than can differentiate between accurate and inaccurate principles the initial part of the study about authors in these areas show how information is conflictive, and also served to establish an initial baseline of recommended practices aligned with IMT. The one author that excels in comparison to the rest suits the "Initial Baseline Matrix from Deming" which composes the first model. The second model is denominated the "Full Extended KSM-Matrix" composed of all the LS characteristics found among all authors and IMT. Both models were tested-out for accuracy. The second part of the study was directed to evaluate the perception of individuals on these principles. Two different groups were evaluated, one group of people that had prior training and knowledge of IMT; another group of people without any knowledge of IMT. The results of the survey showed more confusion in the group of people without knowledge to IMT and improved consistency and less variation in the group of people with knowledge in IMT. The third part of the study, the analysis of case studies of success and failure, identified principles as contributors, and categorized them into LS/type "A" characteristics and RS/type "C" characteristics, by applying the KSM. The results validated the initial proposal and led to the conclusion that practices that fall into the LS side of the KSM will lead to success, while practices that fall into the RS of the KSM will lead to failure. The comparison and testing of both models indicated a dominant support of the IMT concepts as contributors to success; while the KSM model has a higher accuracy of prediction.
ContributorsReynolds, Harry (Author) / Kashiwagi, Dean (Thesis advisor) / Sullivan, Kenneth (Committee member) / Badger, William (Committee member) / Arizona State University (Publisher)
Created2011
Description
Company X is one of the world's largest manufacturer of semiconductors. The company relies on various suppliers in the U.S. and around the globe for its manufacturing process. The financial health of these suppliers is vital to the continuation of Company X's business without any material interruption. Therefore, it is in Company X's interest to monitor its supplier's financial performance. Company X has a supplier financial health model currently in use. Having been developed prior to watershed events like the Great Recession, the current model may not reflect the significant changes in the economic environment due to these events. Company X wants to know if there is a more accurate model for evaluating supplier health that better indicates business risk. The scope of this project will be limited to a sample of 24 suppliers representative of Company X's supplier base that are public companies. While Company X's suppliers consist of both private and public companies, the used of exclusively public companies ensures that we will have sufficient and appropriate data for the necessary analysis. The goal of this project is to discover if there is a more accurate model for evaluating the financial health of publicly traded suppliers that better indicates business risk. Analyzing this problem will require a comprehensive understanding of various financial health models available and their components. The team will study best practice and academia. This comprehension will allow us to customize a model by incorporating metrics that allows greater accuracy in evaluating supplier financial health in accordance with Company X's values.
ContributorsLi, Tong (Co-author) / Gonzalez, Alexandra (Co-author) / Park, Zoon Beom (Co-author) / Vogelsang, Meridith (Co-author) / Simonson, Mark (Thesis director) / Hertzel, Mike (Committee member) / Department of Finance (Contributor) / Department of Information Systems (Contributor) / School of Accountancy (Contributor) / WPC Graduate Programs (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
We were driven by the question: what is happening to the popularity of Major League Baseball? In order to answer this question we compared the league structure of Major League Baseball with that of the National Football League. We were able to speak with five former or current members of the respective leagues in order to gain some insight into how the two leagues operate. The main focus of our research was around the payroll structures of the two leagues as well as their revenue sharing policies. In the end, we discovered that Major League Baseball is becoming highly regionalized. The sport is still growing in popularity in terms of revenue and fan involvement, but it is becoming less popular on a national stage. The league is benefitting greatly from factors like the increasing importance of "TiVo proof programming" and a lack of competition. Each league is very different in its own right. While the NFL promotes a perception of competitive balance, Major League Baseball can be plagued by the negative perception it creates surrounding some of its smaller market teams.
ContributorsHeath, Cameron (Co-author) / Linamen, John (Co-author) / Eaton, John (Thesis director) / Mokwa, Michael (Committee member) / Barrett, The Honors College (Contributor) / WPC Graduate Programs (Contributor) / Department of Marketing (Contributor) / Department of Finance (Contributor) / Department of Information Systems (Contributor) / School of Accountancy (Contributor)
Created2015-05
Description
In the field of Accountancy, recruiting is highly competitive among firms and prospective employees alike. This is particularly true when it comes to the firms Deloitte, Ernst & Young, KPMG, and PWC, the largest accounting firms that comprise what is known as the "Big Four." These firms maintain a large presence and recruit heavily on the Arizona State University (ASU) campus. There exists a defined path for recruiting with these firms; some of the opportunities offered include Office Tours, Externships, Internships, and Volunteer Service. However, as clear as the path may seem to someone who has researched these opportunities, it is murky for most students. Without direction, both students and the firms miss out on crucial relationship development. As an Accountancy major in the W.P. Carey School of Business, I had a difficult time understanding the recruiting process; much of my knowledge came from my peers. As a result, I researched what students know about the recruiting process, and how they learned this information. I also queried the Big Four firms and the student organization, Beta Alpha Psi, to learn what they want from students and how they organize their recruiting process. I surveyed Accountancy majors including both those who went through the recruiting process and those who had yet to go through the process. Overall, the results were consistent with my original understanding; many students lack knowledge of recruiting opportunities and those who did have such knowledge mainly learned of it from their peers and word of mouth. These results show room for growth in connecting students to the firms. A suggested course of action developed based on these findings can be integrated into the ACC101: Accountancy LEAP Program, as well as be incorporated into a student guide in order to better give students direction, a roadmap to the aforementioned path.
ContributorsWhitson, Jillian Layne (Author) / Faurel, Lucile (Thesis director) / Bonfiglio, Thomas (Committee member) / School of Accountancy (Contributor) / WPC Graduate Programs (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
Description
At a time when the national and world community is viewing collegiate business programs as complicit in many recent business scandals rooted in ethical violations and breaches of trust, improving ethics education is a high priority. Review of current research on techniques for effectively teaching ethics highlights the importance of incorporating conversational learning, decision models, and relevant, personalized case discussions into undergraduate ethics lessons. Focusing exclusively on ethics education in the first-year business seminar WPC 101, we evaluated the current ethics/academic integrity module and found it to be lacking many research-supported techniques. To develop an updated curriculum, we first used the EthicsGame Ethical Lens Inventory in a survey of 114 W. P. Carey students to explore whether a connection between students' majors and primary ethical lenses would demonstrate the effectiveness of designing different, tailored ethics curricula for students in each major. Regression analysis of the survey responses indicated that this research was inconclusive for every major except for Accountancy, which already has a specific (upper-division) ethics course. This initial research stage led to the creation of a universally applicable ethics curriculum based on the Baird Decision Model. Incorporating techniques from the literature review, the new WPC 101 Academic Honesty & Ethics curriculum includes a presentation on the Baird Decision Model, a small-group discussion of a relevant ethical dilemma, and a class role play. The curriculum additionally includes detailed Facilitator Guidelines for educators. The curriculum was piloted in WPC 101 classes during Spring 2016, and we present student and facilitator feedback as well as suggestions for further research and improvement. Use of this research-backed curriculum and further study into its impact on student decision making will allow W. P. Carey to continue advancing in pursuit of training students to be effective ethical leaders.
ContributorsMcClelland, Allison (Co-author) / Mayper, Rebecca (Co-author) / Samuelson, Melissa (Thesis director) / Parker, John (Committee member) / Department of Information Systems (Contributor) / Department of Management (Contributor) / School of Accountancy (Contributor) / WPC Graduate Programs (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
The thesis titled "Exploring Undergraduate Admissions through the Development of Shadowing Programs" is an organizational study and analysis of a shadowing program developed by Krista Moller, Ryan Johnson, and Kean Thomas. It resulted in the creation of a 25+ person student organization in the W.P. Carey School of Business called "Explore". The organization received backing and support from the admissions department in W.P. Carey, notably Dean of Admissions, Timothy Desch. The organization's members (titled "ambassadors") host a high school student interested in the business school for a day of class. High school students are matched with an ambassador based on majors they might be interested in, and ideally the result of the day of shadowing is the high school student having a better understanding of the opportunities available at W.P. Carey. The organization began in the fall of 2013, and was intended to be used as a thesis project from its inception. As a result, the founder's experiences were carefully documented and this allowed for a detailed analysis to take place. The analysis delves into the difficulties faced by the organization's members and executive board as a result of internal and external influences. The successes and experiences they were fortunate enough to have are also detailed, and plans for the organization's future are included as well. In addition, the Explore program is analyzed in comparison to other programs around the country and even in Canada, with the goal being to see where we could potentially strengthen our program. The founders of the Explore program (and authors of this thesis) hope other students might learn from it so that more programs such as Explore can be created, benefiting the local community and ASU itself.
ContributorsMoller, Krista (Co-author) / Johnson, Ryan (Co-author) / Thomas, Kean (Co-author) / Suk, Mina (Thesis director) / Desch, Timothy (Committee member) / School of Accountancy (Contributor) / W. P. Carey School of Business (Contributor) / WPC Graduate Programs (Contributor) / Department of Supply Chain Management (Contributor) / Department of Finance (Contributor) / Barrett, The Honors College (Contributor)
Created2015-12