946 resultados para Decision Theory


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he prominence of global warming as an environmental issue has illustrated the close relationship between natural resources, ecosystems and global security. Whilst environmental decision making often uses techniques such as economic valuation and risk management, the security component is often not considered, at least not from a security analyst&rsquo;s perspective. Yet environmental security considerations can be global, regional and/or national in impact. Environmental change and policy can effect human health and well being as well as initiating conflict; it can affect the existence of life itself. These aspects are firmly in the domain of the security discipline although the protection of the global ecosystem has not traditionally been considered by those who create security policy. The idea of environmental/ecological security ranges from the eco-centric approach which examines the impact of human activities that impact on the security of the natural systems to the more traditional anthropocentric perspectives that look at varied issues such as conflict caused by natural resource competition and environmental degradation, and the greening of military operations. This paper will assert that the inclusion of the security factor in policy creation and environmental assessments is essential to give richer solutions to these complex socio-economic and ecological situations. Systems theory over the last few decades has emphasised the inclusion of as many perspectives on messy problems as possible to provide truly systemic outcomes. It is posited that the addition of such concepts as threat analyses will produce more effective and sustainable outcomes.<br />

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This study examined the criteria used by venture capitalists to evaluate business plans in order to make investment decisions. A literature survey revealed two competing theories: &ldquo;espoused criteria&rdquo; where evaluation decisions are based on what venture capitalists say are the decisive factors; versus the use of &ldquo;known attributes&rdquo; that successful ventures actually possess. Brunswik&rsquo;s Lens Model from Social Judgment Theory guided an empirical investigation of several different evaluation methods based on information contained in 129 business plans submitted for venture capital over a 3 year period. Data evaluation culminated in the comparison of the percentage of correct decisions (&ldquo;hit-rate&rdquo;) for each method. We found that decisions based on the known attributes of successful ventures have significantly better hit-rates than decisions made using espoused criteria. Discussion centred on the goal of achieving consistency in the conduct of venture analysis. Process standardization can aid in the achievement of consistency. Future research will both deepen and broaden insights.<br />

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The objective in this study is to examine the existing literature regarding the antecedents to public sector accountability performance by including a new variable: preparer-commanders&rsquo; beliefs about the usefulness of whole-of-government consolidated financial reporting. Goldberg&rsquo;s (1965) Commander Theory was used as a relevant theoretical framework. Survey results provided insights into the beliefs of preparer-commanders as to the usefulness of whole-of-government consolidated financial reports for the discharge of accountability. While there appears to be a view that such reports may be useful for decision-making purposes, there is relatively less evidence to suggest that this type of information is suitable for the purposes of government resource allocation decisions.<br />

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A recent conceptualisation of corporate citizenship by Matten and Crane (2005) shifts focus onto the corporation's role in providing individuals with the rights they are entitled to as citizens. This expanded corporate role is depicted as filling an institutional vacuum resulting from the withdrawal of the state. Marking an innovation to the corporate citizenship literature, we devise a three-part analytical framework from political institutionalism to question the concept's ideological and empirical groundings. Incorporating a constrained game theory perspective, we use an example of the provision of Western corporate services by low-labour-cost nation-states to argue that the concept as strategy would in some circumstances exacerbate the implications of globalisation on individual citizenship rights. The analytical framework has application for research directed toward proposals to extend the reach of corporations in traditional public services and, more generally, for studies of corporate responsibilities. Future research on corporate citizenship would be strengthened in recognising, as we do, institutional incentives, constraints, decision-making modes and resources as used by the transnational corporation.<br />

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Provides a synthesis of human rights theory and human services practice and offers a rights based model to aid professional decision making and practice.

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This study compares the effectiveness of Bayesian networks versus Decision Trees in modeling the Integral Theory of Female Urinary Incontinence diagnostic algorithm. Bayesian networks and Decision Trees were developed and trained using data from 58 adult women presenting with urinary incontinence symptoms. A Bayesian Network was developed in collaboration with an expert specialist who regularly utilizes a non-automated diagnostic algorithm in clinical practice. The original Bayesian network was later refined using a more connected approach. Diagnoses determined from all automated approaches were compared with the diagnoses of a single human expert. In most cases, Bayesian networks were found to be at least as accurate as the Decision Tree approach. The refined Connected Bayesian Network was found to be more accurate than the Original Bayesian Network accurately discriminated between diagnoses despite the small sample size. In contrast, the Connected and Decision Tree approaches were less able to discriminate between diagnoses. The Original Bayesian Network was found to provide an excellent basis for graphically communicating the correlation between symptoms and laxity defects in a given anatomical zone. Performance measures in both networks indicate that Bayesian networks could provide a potentially useful tool in the management of female pelvic floor dysfunction. Before the technique can be utilized in practice, well-established learning algorithms should be applied to improve network structure. A larger training data set should also improve network accuracy, sensitivity, and specificity.

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To date, many of the models and theories that seek to explain problem solving and decision making, have tended to adopt an overly reductionist view of the processes involved. As a consequence, most theories and models have proved unsuitable in providing managers with a practical explanation of the dynamics that underpin problem solving. A substantial part of a managers time is taken up with problem solving and decision making issues. The question of whether managers possess the necessary problem solving skills, or have access to tools, which can be used to manage different types of problems, has become an issue of some importance for managers and organisations alike. This paper seeks to contribute to the current literature on problem solving and decision making, by presenting a conceptual model of problem solving, which is intended to assist managers in developing a more holistic framework for managing problem solving issues.

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<b>Background:&nbsp;</b><div><span style="font-size: 12px;">Knowledge translation strategies are an approach to increase the use of evidence within policy and practice decision-making contexts. In clinical and health service contexts, knowledge translation strategies have focused on individual behavior change, however the multi-system context of public health requires a multi-level, multi-strategy approach. This paper describes the design of and implementation plan for a knowledge translation intervention for public health decision making in local government. <br /><br /><b>Methods: <br /></b>Four preliminary research studies contributed findings to the design of the intervention: a systematic review of knowledge translation intervention effectiveness research, a scoping study of knowledge translation perspectives and relevant theory literature, a survey of the local government public health workforce, and a study of the use of evidence-informed decision-making for public health in local government. A logic model was then developed to represent the putative pathways between intervention inputs, processes, and outcomes operating between individual-, organizational-, and system-level strategies. This formed the basis of the intervention plan. <br /><br /><b>Results: <br /></b>The systematic and scoping reviews identified that effective and promising strategies to increase access to research evidence require an integrated intervention of skill development, access to a knowledge broker, resources and tools for evidence-informed decision making, and networking for information sharing. Interviews and survey analysis suggested that the intervention needs to operate at individual and organizational levels, comprising workforce development, access to evidence, and regular contact with a knowledge broker to increase access to intervention evidence; develop skills in appraisal and integration of evidence; strengthen networks; and explore organizational factors to build organizational cultures receptive to embedding evidence in practice. The logic model incorporated these inputs and strategies with a set of outcomes to measure the intervention's effectiveness based on the theoretical frameworks, evaluation studies, and decision-maker experiences. <br /><br /><b>Conclusion: <br /></b>Documenting the design of and implementation plan for this knowledge translation intervention provides a transparent, theoretical, and practical approach to a complex intervention. It provides significant insights into how practitioners might engage with evidence in public health decision making. While this intervention model was designed for the local government context, it is likely to be applicable and generalizable across sectors and settings.</span></div>

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In this chapter, the authors consider some of the issues regarding the rational choice decision framework in neoclassical economics and how it can particularly be found wanting in the absence of due consideration for some of the underlying critical neurobiological factors which govern decision making. They develop a critical decision problem and explore the scenario where the solution predicted by formal economic theory may be in conflict with the decision that actually occurs. Such conflict is especially relevant in the context of economic decision making in emerging markets where there can be a lack of trust in the system by the agents operating within it. Based on logically consistent arguments derived from the extant literature, the authors argue that non-consideration of underlying neurobiological factors is a direct cause of this conflict.

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The theory of planned behaviour is one of the most widely used models of decision-making in the health literature. Unfortunately, the primary method for assessing the theory's belief-based expectancy-value models results in statistically uninterpretable findings, giving rise to what has become known as the &lsquo;expectancy-value muddle&rsquo;. Moreover, existing methods for resolving this muddle are associated with various conceptual or practical limitations. This study addresses these issues by identifying and evaluating a parsimonious method for resolving the expectancy-value muddle. Three hundred and nine Australian residents aged 18&ndash;24 years rated the expectancy and value of 18 beliefs about posthumous organ donation. Participants also nominated their five most salient beliefs using a dimensional salience approach. Salient beliefs were perceived as being more likely to eventuate than non-salient beliefs, indicating that salient beliefs could be used to signify the expectancy component. The expectancy-value term was therefore represented by summing the value ratings of salient beliefs, an approach that predicted attitude (adjusted R 2&thinsp;=&thinsp;0.21) and intention (adjusted R 2&thinsp;=&thinsp;0.21). These findings suggest that the dimensional salience approach is a useful method for overcoming the expectancy-value muddle in applied research settings.

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This study investigates the application of consumer behaviour theory to young Australian adults&rsquo; voting decision-making. Previous decision-making studies identified constructs of subjective knowledge, involvement, information seeking, satisfaction, confidence, and stability as key factors in voting decision-making. This research tests the relationship that these factors have with the consumer behaviour concept of usage. A new concept, commitment to vote, is also considered for Australia&rsquo;s compulsory voting context. Data were gathered from a sample of 257 Australian citizens between the ages of 18 and 25. Exploratory factor analysis produced nine factors, and MANOVA and ANOVA were used to test the differences between three usage groups: voluntary users, involuntary users, and never trieds. The results illustrate that usage has a significant influence on information seeking, commitment to voting, satisfaction with voting choice, and stability in voting decision-making. Therefore, usage is a key element in voter decision-making and needs to be included in future studies.

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A person-centred approach to care in residential aged care facilities should uphold residents&rsquo; rights to independence, choice, decision-making, participation, and control over their lifestyle. Little is known about how nurses and personal care assistants working in these facilities uphold these ideals when assisting residents maintain continence and manage incontinence. The overall aim of the study was to develop a grounded theory to describe and explain how Australian residents of aged care facilities have their continence care needs determined, delivered and communicated. This paper presents and discusses a subset of the findings about the ethical challenges nurses and personal care assistants encountered whilst providing continence care. Grounded theory methodology was used for in-depth interviews with 18 nurses and personal care assistants who had experience of providing, supervising or assessing continence care in any Australian residential aged care facility, and to analyse 88 hours of field observations in two facilities. Data generation and analysis occurred simultaneously using open coding, theoretical coding, and selective coding, until data were saturated. While addressing the day-to-day needs of residents who needed help to maintain continence and/or manage incontinence, nurses and personal care assistants struggled to enable residents to exercise choice and autonomy. The main factor that contributed to this problem was that the fact that nurses and personal care assistants had to respond to multiple, competing, and conflicting expectations about residents&rsquo; care needs. This situation was compounded by workforce constraints, inadequate information about residents&rsquo; care needs, and an unpredictable work environment. Providing continence care accentuated the ethical tensions associated with caregiving. Nurses&rsquo; and personal care assistants&rsquo; responses were mainly characterised by highly protective behaviours towards residents. Underlying structural factors that hinder high quality continence care to residents of aged care facilities should be urgently addressed.

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Purpose - This study aims to specifically focus on the lower-involvement young adult voters within the Australian compulsory voting context. It explores voters&rsquo; political decision-making by considering the influence of the consumer behaviour theory of involvement. Design/methodology/approach - A thematic analysis was conducted to analyse the interviews within the two research questions: information seeking and decision-making. Findings - Key themes within information seeking are the reach of the information available, the frequency of the information presented, the creativity of the message and one-way versus two-way communication. Key themes within evaluation are promise keeping/trust, achievements or performance and policies. Lower-involvement decision-making has the potential to be a habitual, limited evaluation decision. However, issues of trust, performance and policies may encourage evaluation, thereby reducing the chances of habitually voting for the same party as before. Practical implications - This new area of research has implications for the application of marketing for organisations and political marketing theory. Considering voting decision-making as a lower-involvement decision has implications for assisting the creation and adaptation of strategies to focus on this group of the population. Originality/value - The compulsory voting environment creates a unique situation to study lower-involvement decision-making, as these young adults are less likely to opt out of the voting process. Previous research in political marketing has not specifically explored the application of involvement to young adult voting within a compulsory voting environment.

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Purpose&ndash; This paper aims to explore the issue of corporate governance mechanisms by including the importance of stakeholders, primary objectives of the firm and the ownership of top financial managers of listed firms in Kuwait in the survey tool. It attempts to investigate whether theory aligns with the behaviour of financial managers in practice in an emerging market case.Design/methodology/approach&ndash; A survey was developed to focus primarily on the current corporate finance practices implemented by CFOs in listed companies in Kuwait. The target respondents are listed firms in the Kuwaiti Stock Exchange (KSE). The survey includes questions on topics that are closely related to capital budgeting, capital structure, cost of capital and dividend policy. For example, the survey asks the managers how they estimate their cost of equity (CAPM or other methods) and whether the impact of the weighted average cost of equity is taken into consideration in their capital structure choices.Findings&ndash; A surprising number of firms are now widely using IRR for decision making. CAPM is also in use, whereas WACC remains the most popular method used. There is some support for the &ldquo;birdinhand&rdquo; dividend theory in the taxfree environment. Firms in Kuwait do not have any particular source of capital structure choices when it comes to how best to finance their projects as is the case in the US market. Firms in Kuwait are consciously striving for maximizing profits and those managers are regarded as their most important stakeholders. This may indicate the existence of agency problems.Research limitations/implications&ndash; The limitation of this study lies in the absence of empirical investigation on how corporate finance decisions may affect firms' performance in Kuwait. Hence, empirical validation will be performed by the authors in the next stage of this research, which will form the basis for further research. Empirical validation for the impact of corporate governance on performance is needed.Practical implications&ndash; This research may benefit managers and decision makers in many aspects, including having an understanding of applying popular and the most suitable corporate finance and corporate governance techniques in the management of their companies. In this research, the authors have identified the gap between practice and academia.Originality/value&ndash; To the best of the authors' knowledge, this is the first study to examine comprehensively major areas of financial policies and practices and corporate governance in an emerging market case, especially in the Middle East. Kuwait provides a unique institutional setting in its taxation system. Therefore, this study will make a contribution to the general literature in this field.

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BACKGROUND: Homeopathy is a major modality in complementary and alternative medicine. Significant tensions exist between homeopathic practice and education, evident in the diversity of practice styles and pedagogic models. Utilizing clinical reasoning knowledge in conventional medicine and allied health sciences, this article seeks to identify and critique existing research in this important area. MATERIALS AND METHODS: A literature search utilizing MEDLINE,(&reg;) Allied and Complementary Medicine (AMED), and CINAHL(&reg;) (Cumulative Index to Nursing and Allied Health Literature) was conducted. Key terms including clinical thinking, clinical reasoning, decision-making, homeopathy, and complementary medicine were utilized. A critical appraisal of the evidence was undertaken. RESULTS: Four (4) studies have examined homeopathic clinical reasoning. Two (2) studies sought to measure and quantify homeopathic reasoning. One (1) study proposed a reasoning model, based on pattern recognition, hypothetico-deductive reasoning, intuition, and remedy-matching (PHIR-M), resembling much that has been previously mapped in conventional medical reasoning research. The fourth closely investigated the meaning and use of intuition in homeopathic decision-making. CONCLUSIONS: Taken together, these four studies provide valuable insight into what is currently known about homeopathic clinical reasoning. However, despite the history and breadth of practice, little is known about homeopathic clinical reasoning and decision-making. Building on the research would require viewing clinical reasoning not only as a cognitive phenomenon but also as a situated and interactive one. Further research into homeopathic clinical reasoning is indicated.