Performance-based contracting (PBC) is an outcome-based product support strategy that provides efficient performance solutions for buyers. Suppliers under performance-based contracting are rewarded after achieving desired performance objectives. While current scholarship has deepened our knowledge of the benefits of PBC, the particular factors behind effective and efficient performance-based contracts (PBCs) are still vague. Thus, this dissertation will focus on essential dimensions for the successful PBC. There remains a great deal that is not understood about the success factors for effective PBCs. When looking at the critical criteria for the selection of suppliers in the context of PBC, even less is known. This dissertation contains three essays with the purpose of: (1) investigating the effect of supply chain collaboration and upfront investments on the benefits of the PBC; (2) exploring supplier selection criteria for successful PBC; and (3) examining the effect of contract length and fleet size on upfront investments for effective and efficient PBC. These three essays offer a solid foundation for theoretical and practitioner understanding for effective PBCs.

The use of analytic rubrics remains popular in the field of writing assessment. Previous work in second-language writing assessment and other fields like economics suggest that ratings produced using this method may have lower reliability on average than other methods. Currently, there is little research on the reliability of ratings of creative writing, specifically creative writing authored by adults. This study evaluated the reliability of ratings from an analytic rubric against those produced by a comparative method called Randomly Distributed Comparative Judgment and the rater experience of the methods. The author administered a science fiction and fantasy contest in which 9 raters rated subsets of 47 total contest entries. Raters used both methods on two occasions for a total of four ratings per assigned artifact. The analytic rubric ratings were analyzed using the Many-Facets Rasch Model to model story, rater, occasion, and interaction effects. The comparisons from the RDCJ method were used in a proprietary version of the Bradley-Terry Model to calculate true scores and rater effects. Analysis showed rater effects in the ratings of both methods, though greater for those associated with the rubric model. The ratings from the rubric also contained occasion effects, but the RDCJ ratings did not. Interviews with the raters found that raters generally favored the RDCJ method, though some would have preferred a modified version. However, they all found the rubric less useful, even though many thought that it covered the generally accepted factors of good creative writing. These findings may influence practitioners' decisions when choosing a rating method for shorter works of creative writing, particularly in contexts like story contests or university admissions. However, rating of creative writing is an understudied field compared to academic writing, and more work is needed in the areas of reliability and rating.

This research adds to the literature and provides insight to practice via three essays that increase understanding about the applications and consequences of the two new approaches to the after-sales service governance: warranty contract and performance-based contracts. First, we attempted to enhance our knowledge of the modeling of the after-sales service process. In the first essay, the research papers with analytical models of after-sales services to present current trends, issues, and future research directions in the literature are classified. In the second essay, the effect of the warranty contract on the supplier's product quality improvement efforts in the context of capital goods is examined. Three sets of optimization models reveal that the existence of a warranty improves product quality. In the third essay, the performance-based contract is examined in the context of the warranty contract. The numerical experimentations conducted demonstrate that the performance-based contract is superior to the warranty contract in terms of the supplier's product quality efforts and the customer's total cost of after-sales services. The alignment of incentives based on the product performance tackles the issues presented in the traditional after-sales service contracting. Collectively, the three studies presented in this research expand our understanding of after-sales service contracts. Thus, the research presents managerial implications and adds to the existing body of knowledge in after-sales service research.

Background: Performance-based financing (PBF) is a healthcare reform that is widely adopted in low- and middle-income countries (LMICs). PBF is an intervention designed to strengthen healthcare systems in LMICs. It represents a fundamental shift towards improving healthcare amongst the most vulnerable, with a focus on maternal and child health services. Broadly, there are gaps regarding PBF’s effect on healthcare systems and various aspect of healthcare, including efforts to implement universal healthcare coverage. PBF introduced an innovative component—the PBF equity instrument—geared towards achieving universal health coverage. The effect of this equity instrument has not been studied. There is significant gap regarding how it is defined and implemented in various context. Cameroon has one of the highest maternal mortality rates in sub–Saharan Africa and with high out-of-pocket expenses that impede access to maternal health services. PBF was introduced in Cameroon in 2012 with a focus on maternal health services and was adopted in 2017 as a national strategy towards achieving universal coverage, however, the definition and implementation of the PBF equity elements remain a gap in Cameroon and sub-Saharan Africa. This dissertation is focused on studying the PBF equity elements in Cameroon in order to get a broader perspective on the effect of the PBF equity elements as a policy tool in improving the lives of the most vulnerable population to ensure no one is left behind in the efforts towards achieving universal health coverage. Objectives: This dissertation aimed (1) to investigate and characterize the effect of the PBF equity elements in improving equity in access to selected maternal services (2) to understand how the equity elements is defined and implemented in Cameroon; and (3) to generate a framework that will facilitate the identification of gaps and challenges, in turn informing policy development that is relevant to PBF equity elements in Cameroon and PBF research on equity in other countries; and (4) to explore health providers experiences before and after the introduction of PBF in Cameroon. Methods: This dissertation employed a mixed methods approach to address the above objectives, involving the use of multiple frameworks and triangulation across and within objectives. First, to investigate the effect of PBF on equity in improving access to maternal services, I designed a systematic review with a focus on one of the equity elements—subsidizing user fees to reduce out-of-pocket expenses to improve access to maternal health services. The aim was to get a broader overview of the PBF equity element and to understand the effect of PBF on out-of-pocket expenses in improving access to selected maternal health services in sub–Saharan Africa. Second, I narrowed the assessment to a specific context-Cameroon. Given the heterogenous nature of care delivery in Cameroon, I investigated the effect of PBF on out-of-pocket expenses in improving access to selected maternal health services across healthcare sectors using a before-and-after study design. The rationale was to address the limitations of an earlier PBF impact evaluation in Cameroon, in particular, potential heterogeneity across settings and sectors which had not been considered. Third, to describe and define the implementation of the PBF equity elements in Cameroon, I conducted a grounded theory study -given that it is a new policy that has not been well studied -to understand the social processes and actions from health facilities, health providers, PBF managers and the community, and generated a theoretical framework to inform the challenges and gaps in the implementation process. Finally, as a newly adopted health reform, I conducted an in-depth qualitative study to understand the experiences of health care provides before -and-after the implementation of PBF and its equity elements and the potential for sustainability of the policy especially the equity strategies in Cameroon. Findings: The findings provide an overarching understanding on the effect of one of the PBF equity elements in improving access to maternal health services in sub–Saharan Africa, and in particular, an understanding of the effect of the PBF equity elements in improving access and utilization of selected maternal services in Cameroon. At the health system level, the findings provide an understanding of the focus of the equity elements within the context of Cameroon and further insight on the gaps and limitations in the implementation of the PBF equity elements and the potential challenges in sustainability towards achieving universal health coverage. At the health facility level, it provides an understanding on how the PBF equity elements is understood, defined, and implemented and provides directions on the challenges to inform policy and to guide research. At the individual level, it provides an overview of the expectations of health care providers from a supply side perspective and the potential effect it has on demand creation from women and households in improving access to maternal health services. Overall, the findings provide insight on how the equity elements are defined and implemented but also provides opportunity and areas of improvement and detailed how PBF equity elements can be further assessed and how delays in payment of PBF incentives can potentially affect the realization of the equity elements in improving access and utilization of maternal health services amongst the poor and vulnerable. Conclusion: Equity is central and essential to the delivery of services to achieve universal health coverage. The adoption of PBF in Cameroon is a step toward achieving universal health coverage with the recognition that universal health coverage cannot be effectively implemented in an institution without good governance. The PBF initiative is viewed as an entry point for universal health coverage, in order to evaluate the level of preparedness of health facilities to embrace universal health coverage in terms of quality of health care, production, good managerial skills, and financial management. However, due to administrative bottlenecks, the government has yet to accept some of the established principles of PBF—this in turn causes delays in payment and this hampers the effective implementation of some of the PBF equity strategies. Therefore, though PBF is a national policy, the actors at the central level, i.e., the Ministry of Public Health, are not playing their role effectively in enabling full implementation of PBF best practices and theories.

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For the last two decades, the road maintenance concept has been gaining tremendous attention. This has brought about new institutional changes, predominant of which is the challenge for maintenance managers to achieve maximum performance from the existing road system. Such challenge makes it imperative to implement comprehensive systems that measure road maintenance performance. However, the road maintenance performance measurement systems developed and implemented by researchers and state departments of transportation (DOTs) mainly focus on the effectiveness measures, e.g., the level-of-service. Such measurement systems do not sufficiently elaborate on the efficiency concept, e.g., the amount of resources utilized to achieve such level-of-service. Not knowing how "efficient" state DOTs are in being "effective" can lead to excessive and unrealistic maintenance budget expectations. This issue indicates the need for a performance measurement approach that can take the efficiency concept into account. Another important concept that is not investigated in the current road maintenance performance measurement systems is the effect of the environmental factors (e.g., climate, location, and etc.) and operational factors (e.g., traffic, load, design-construction adequacy, and etc.) on the performance of the road maintenance process. This issue, again, indicates the need for a performance measurement approach that can take such external and uncontrollable factors into account. The purpose of this research is to develop and implement a comprehensive framework that can measure the relative efficiency of different road maintenance strategies given the (i) multiple inputs and outputs that characterize the road maintenance process and (ii) uncontrollable factors (e.g., climate, traffic, etc.) that affect the performance of such process. It is challenging to measure the overall efficiency of a process when such process is a multiple input-multiple output process and when such process is affected by multiple factors. To address this challenge, an innovative approach to efficiency measurement, Data Envelopment Analysis, is used in this research. It is believed that this research, by taking the efficiency concept into account, will significantly improve the ways that are currently used to model and measure the performance of road maintenance. The findings of this research will contribute new knowledge to the asset management field in the road maintenance domain by providing a framework that is able to differentiate effective and efficient maintenance strategies from effective and inefficient ones. / Ph. D.

In the late 1980s and early 1990s few transportation agencies around the world considered performance-based specifications as an alternative to improve the efficiency of the services provided to the public. These initiatives are better known as Performance-Based Road Maintenance (PBRM). PBRM calls for performance-based work, in which a desired outcome is specified rather than a material or method. This type of specification promises to be an excellent tool to improve government efficiency in maintaining transportation networks; however, without proper monitoring, it could likely yield adverse outcomes. Since PBRM is relatively new, the availability of reliable and comprehensive sets of guidelines to evaluate the effectiveness and efficiency of this type of specifications in the roadway maintenance arena is limited. Transportation agencies currently rely on criteria and procedures they have had developed from their traditional methods used to evaluate performance. Unfortunately, some of these procedures cannot appropriately assess the benefits, if any, accrued by the government as a result of implementing performance-based specifications for the maintenance of the roadway system. This research presents the development of a framework for monitoring PBRM more comprehensively and accurately. The framework considers the assessment of five main areas -- Level of Service Effectiveness, Cost-Efficiency, Timeliness of Response, Safety Procedures, and Quality of Services -- in order to guarantee the comprehensiveness and reliability of the evaluation process. The major contribution of this framework is to provide transportation agencies with guidelines for evaluating the effectiveness and efficiency of PBRM as an alternative delivery method to maintain and preserve the roadway system. / Ph. D.