959 resultados para EMPIRICAL-EVIDENCE
Resumo:
The empirical evidence on the Kuznets hypothesis ranges from positive or negative support to insignificant relationships. Most studies typically try this hypothesis in domains different than the one conceived by Kuznets, which pertains to the industrialization-led urbanization (i.e., significant rural-urban migration) phase of societies. In this paper, we offer a specific channel on Kuznets' hypothesis in his suggested domain. First, we establish theoretically that intersectoral urban-rural size differences result in an intersectoral income inequality, increasing the national inequality. This, in turn, prompts an intersectoral migration, which works as an equilibriating mechanism in the economy, decreasing the inequality in due course. We then successfully test the predictions of the model. The theoretical predictions yield a recursive triangular system, in which we test, i) how the sectoral size differences influence the agricultural income, ii) how a change in agricultural income acts on migration, and iii) what happens to the income distribution as a result of migration. We find a very strong support for the theoretical predictions and the Kuznets hypothesis in its own domain.
Resumo:
The education of nurses has traditionally been conducted in the hospital based setting. This changed over the last few decades, with nursing education now being a tertiary based course in many countries. There were numerous reasons for this move, the main goal being to improve the educational experience of students and thus the competence of graduates. Nurse academics whose role is to educate students are faced with the challenge of ensuring their teaching reflects the contemporary nursing environment. One way of doing this is by actively engaging in clinical practice. However there are arguments for and against (as well as barriers to) them doing so and little empirical evidence to support either argument. Individually, nurse academics must make a decision about whether engaging in clinical practice is beneficial to their career and the students they teach.
Resumo:
• This article reports on observation of 18 nurses in urban and rural based critical care settings.
• The purpose of the study was to observe and describe the decision-making activities of critical care nurses within natural clinical settings.
• During the 2-hour observation, the researcher dictated a detailed commentary on to audio-tape of each nurse's actions. Tapes were transcribed and subjected to content analysis.
• Findings indicated three main categories of decisions. Decision frequencies were linked to nurses' critical care experience, appointment level, and location, as well as nursing shifts.
• The findings are discussed in relation to previous empirical evidence and the implications for practice.
• The author concludes that future research should be directed towards measuring the contextual influences on nurses' decision-making on the outcome of patient care.
Resumo:
We examined associations between objective measures of the local road environment and physical activity (including active transport) among youth. There is little empirical evidence of the impact of the road environment on physical activity among children/adolescents in their neighborhoods. Most recent studies have examined perceptions rather than objective measures of the road environment. This was a cross-sectional study of children aged 8–9 years (n = 188) and adolescents aged 13–15 years (n = 346) who were participants in the 3-year follow-up of the Children Living in Active Neighborhoods (CLAN) longitudinal study in Melbourne, Australia. At baseline (2001), they were recruited from 19 state primary schools in areas of varying socioeconomic status across Melbourne. Habitual walking/cycling to local destinations was parent-reported for children and self-reported for adolescents, while moderate-to-vigorous physical activity (MVPA) outside school hours was recorded using accelerometers. Road environment features in each participant’s neighborhood (area of radius 800 m around the home) were measured objectively using a geographical information system. Regression analyses found no associations between road environment variables and children’s likelihood of making at least seven walking/cycling trips per week to neighborhood destinations. Adolescent girls residing in neighborhoods with two to three traffic/pedestrian lights were more likely to make seven or more walking/cycling trips per week as those whose neighborhoods had fewer traffic lights (OR: 2.7; 95% CI: 1.2–6.2). For adolescent boys, residing on a cul-de-sac, compared with a through road, was associated with increases in MVPA of 9 min after school, 5 min in the evenings, and 22 min on weekend days. Speed humps were positively associated with adolescent boys’ MVPA during evenings. The road environment influences physical activity among youth in different ways, according to age group, sex and type of physical activity.
Resumo:
Purpose – This study aims to bring together theoretical concepts from the organizational justice, internal control and fraud literature to develop two distinct models relating to employee fraud and the quality of internal control procedures (ICP), respectively.
Design/methodology/approach – Survey data from 64 Australian firms were used to develop the two models. The first model was tested using a logistic regression analysis, and the second model was tested using a multiple regression analysis.
Findings – The first model reveals that the quality of ICP has a moderating effect on the relationship between perceptions of organizational justice and employee fraud. The second model indicates that ICP quality is significantly and positively related to three key organizational factors: the corporate ethical environment, the extent of risk management training of staff, and the internal audit (IA) activity level.
Practical implications – Risk management strategies relating to employee fraud will need to pay greater attention to organizational factors that affect both perceptions of justice at the workplace and ICP quality, including fostering a more ethical and equitable work environment, increasing IA activities and staff training in risk management.
Originality/value – Using the fraud triangle framework, this study extends previous literature by providing empirical evidence on the role of organizational justice and ICP regarding employee fraud.
Resumo:
The extent and rapidity of global climate change is the major novel threatening process to biodiversity in the 21 st century. Globally, numerous studies suggest movement of biota to higher latitudes and altitudes with increasing empirical -evidence emerging. As biota responds to the direct and consequent effects of climate change the potential to profoundly affect natural systems (including the reserve system) of south-eastern Australia is becoming evident. Climate change is projected to accelerate major environmental drivers such as drought, fire and flood regimes. Is the reserve system sufficient for biodiversity conservation under a changing climate? Australia is topographically flat, biologically mega-diverse with high species endemism, and has the driest and most variable climate of any inhabited continent. Whilst the north-south orientation and aftitude gradient of eastern Australia's forests and woodlands provides some resilience to projected climatic change, this has been eroded since European settlement, particularly in the cool-moist Bassian zone of the south-east. Following settlement, massive land-use change for agriculture and forestry caused widespread loss and fragmentation of habitats; becoming geriatric in agricultural landscapes and artificially young in forests. The reserve system persists as an archipelago of ecological islands surrounded by land uses of varying compatibility with conservation and vulnerable to global warming. The capacity for biota to adapt is limited by habitat availability. The extinction risk is exacerbated. Re-examination of earlier analysis of ecological connectivity through biolink zones confirms biolinks as an appropriate risk management response within a broader suite of measures. Areas not currently in the reserve system may be critical to the value and ecological function of biological assets of the reserve system as these assets change. Ecological need and the rise of ecosystem services, combined with changing socio-economic drivers of land-use and social values that supported the expansion of the reserve system, all suggest biolink zones represent a new, necessary and viable multi-functional landscape. This paper explores some of the key ecological elements for restoration within biolink zones (and landscapes at large) particularly through currently agricultural landscapes.
Resumo:
Objectives: Small businesses are estimated to contribute a significant proportion of global pollution, yet there is little empirical evidence to support this claim. The main aim of this research was to conduct an exploratory analysis of small business’s environmental impact in terms of waste, water and energy.
Prior work: Due to the negative impact small businesses are reported to have on the environment, their disengagement in environmental management practices has caused international concern. Much of the literature has concentrated on identifying the barriers and drivers of small business engagement. Little empirical work being conducted on the actual impact of they have on the environment or on the influence of the local context on their environmental practices.
Approach: A survey was developed and distributed to 466 small businesses within two light industrial areas in Perth Western Australia, which achieved a response rate of 87%. This survey will be replicated after a 12 month intervention is conducted. The two light industrial areas were selected as their Local Government Authorities are looking for businesses within their boundaries to improve their environmental performance.
Results: Initial results suggest that the small businesses do have a considerable impact on the environment in terms of waste disposal. Moreover, their environmental management practices concerning waste, energy and water were found to differ depending on the local contexts in which the small businesses operate.
Implications: As small businesses are both economically and socially important to all major industrialised nations, empirical research that provides evidence of their impact on the environment is critical. The implication here is that if the context in which these businesses operate influences the practices employed, developing strategies that acknowledge the influence and consequences of context may be more effective than those currently available. Differences identified within practices suggest that greater awareness and education is needed on water management than energy or waste, as this is the area where small business owner-managers have shown they have less knowledge and/or active engagement.
Value: This research is valuable in three ways. First, it adds to the knowledge of small business impact on the environment. Second, it identifies that context may be a factor that needs to be considered when developing strategies to engage small businesses in environmental management. Finally, it shows that the environmental management of water is the least well established environmental priority of small businesses at this time.
Resumo:
Leisure self-determination was tested for its capacity to buffer the effects of life stress on the level of depression of older adults. A direct association between leisure-self-determination and level depression was also tested. A sample of 152 individuals aged 49 years and over completed a questionnaire which included measures of stress, leisure self-determination, and depression. Hierarchical multiple regression analysis incorporating an interaction component to represent the buffering effect was used to analyse the data. Higher levels of leisure self-determination were significantly associated with lower levels of depression regardless of life stress. Leisure self-determination also acted as a buffer of the association between life stress and depression. The study has significant theoretical and practical implications. Theoretically, it supports the stress buffering hypothesis of Coleman and Iso-Ahola (1993) when applied to a sample of older adults. The practical implications of the empirical evidence focus on the importance of fostering leisure self-determination dispositions through leisure practices, policies, and leadership styles that facilitate and support older adult autonomy in leisure experiences.
Resumo:
Purpose – The purpose of this paper is to examine how a risk management committee (RMC), as a newly evolving sub-committee of the board of directors, functions as a key governance support mechanism in the oversight an organisation's risk management strategies, policies and processes. However, empirical evidence on the factors associated with the existence and the type of RMCs remains scant.
Design/methodology/approach – Using an agency theory perspective, this study investigates the association between board factors such as proportion of non-executive directors, Chief Executive Officer duality, and board size; as well as, other firm-related factors (e.g. auditor type, industry, leverage, and complexity), and the existence of a RMC, and the type of RMC (namely, a separate RMC versus one that is combined with the audit committee). Data was collected from the annual reports of the top 300 Australian Stock Exchange (ASX)-listed companies.
Findings – The results, based on logistic regression analyses, indicate that RMCs tend to exist in companies with an independent board chairman and larger boards. Further, the results also indicate that in comparison to companies with a combined RMC and audit committee, those with a separate RMC are more likely to have larger boards, higher financial reporting risk and lower organisational complexity.
Research limitations/implications – Data limited to top 200 top ASX-listed companies, thus restricting generalisability of the results.
Originality/value – The findings of this study provide additional information on the use and design of RMCs in a voluntary setting.
Resumo:
This study provides empirical evidence of the effect of a simulated work integrated learning (WIL) program on students’ self-efficacy within an accounting context. An Accounting WIL Program was designed as a two-staged module using information seminars, networking sessions and in-depth workshops that helped develop final year accounting students’ understanding of the accounting profession as well as some basic skills expected of a new recruit. Data from a questionnaire survey of 35 participant students indicates that the students perceived greater self-efficacy upon completion of the WIL program, and that male students appeared to show greater self-efficacy for selected items.
Resumo:
A risk management committee (RMC), as a newly evolving sub-committee of the board of directors, functions as a key governance support mechanism in the oversight an organisation’s risk management strategies, policies and processes. However, empirical evidence on the factors associated with the existence and the type of RMCs remains scant. Using an agency theory perspective, this study investigates the association between board factors such as proportion of non-executive directors, CEO duality, and board size; as well as, other firm-related factors (e.g. auditor type, industry, leverage, and complexity), and (1) the existence of a RMC, and (2) the type of RMC (namely, a separate RMC versus one that is combined with the audit committee). Data was collected from the annual reports of the top 300 ASX-listed companies. The results, based on logistic regression analyses, indicate that RMCs tend to exist in companies with an independent board chairman and larger boards. Further, the results also indicate that in comparison to companies with a combined RMC and audit committee, those with a separate RMC are more likely to have larger boards, higher financial reporting risk and lower organisational complexity. The findings of this study provide additional information on the use and design of RMCs in a voluntary setting.
Resumo:
This paper explores issues that are relevant to the judgements routinely made by clinical psychologists. It first considers the relative merits of clinical and statistical approaches to decision making and notes that although much of the empirical evidence demonstrates the greater accuracy of statistical approaches to making judgements (where appropriate methods exist), they are rarely routinely used. Instead, clinical approaches to making judgements continue to dominate in the majority of clinical settings. Second, common sources of errors in clinical judgement are reviewed, including the misuse of heuristics, clinician biases, the limitations of human information-processing capacities, and the overreliance on clinical interviews. Finally, some of the basic strategies that can be useful to clinicians in improving the accuracy of clinical judgement are described. These include advanced level training programs, using quality instruments and procedures, being wary of overreliance on theories, adhering to the scientist-practitioner approach, and being selective in the distribution of professional efforts and time.
Resumo:
The concept of life balance implies that there is some optimal time allocation between the various forms o(human activity we engage in each day. So life balance can be measured by the size of the discrepancy between how we should and how we do allocate our time.
If someone chooses to spend all of their discretionary time writing poetry, is this a balanced life? Many people would say no. They would judge such a life to be imbalanced because life is full of competing demands, and writing poetry all day means that other aspects of life are neglected.
But is this just an imposed value judgment, or does the concept of a balanced life have deeper meaning? The answer must lie with whatever we use to measure the outcome. Any conclusion that balance is better than imbalance must be based on empirical evidence. So, what should be measured?
Resumo:
The advent of the Internet and the World Wide Web has been instrumental in bringing about the growth in the implementation of web-based information systems (WBIS). Such systems are designed with the aim of improving productivity, data accuracy, and the reduction of paperwork and administrative overheads. Moreover, unlike their conventional non-web-based predecessors, the WBIS are commonly aimed at users who are casual and untrained, geographically distributed and non-homogenous. The dissemination of WBIS necessitates additional infrastructure support in the form of a security system, workflow and transaction management, and web administration. WBIS are commonly developed using an evolutionary approach, whereby the version of the application, acquired from the vendor, is first deployed as a pilot, in order to gather feedback from the target users before the evolutionary cycles commence. While a number of web development methodologies have been proposed by existing research, there is a dearth of empirical evidence that elucidates the experiences of project initiators in pursuing the evolution of web services, a process that undoubtedly involves dealing with stakeholder issues. This research project presents a phenomenological investigation of the experiences of project managers with the implementation of web-based employee service systems (ESS), a domain that has witnessed a sharp growth in Australia in recent times. However, the project managers’ rich, multidimensional account of their experiences with the implementation of ESS revealed the social obstacles and fragility of intra-organizational relationships that demanded a cautious and tactful approach. Thus, the study provides a socio-organizational perspective to web projects in contrast to the functionalist paradigm of current web development methodologies. The research also confirms that consideration of the concerns of stakeholders by project managers is crucial to the successive cycles of ESS evolution. Project managers address stakeholder concerns by pursuing actions that are aimed at encouraging ESS usage, but at the same time, such actions can have consequences necessitating subsequent iterations of system enhancement and improvement. Finally, the research also discovered that despite the different socio-political climate prevalent in various organizations, in which ESS are being implemented, the experiences of project managers in dealing with stakeholder concerns can be captured and independently confirmed in terms of their perceived relevance and usefulness in problem-solving within the application domain.
Resumo:
This thesis concerns the psychological contracts of employees. A psychological contract is an employee’s perception that: 1) an employer has certain obligations to them, and 2) in return, they have obligations as employees. A psychological contract is therefore a set of subjectively perceived reciprocal obligations. The psychological foundations of this construct are linked with cognitive schemas and social exchange theories. While the concept of psychological contracts was first proposed in the early 1960s, it has only been operationalised for empirical study in the last decade. The purpose of the thesis was to increase the understanding of the content and structure of employee psychological contracts and their links with career cognitions. The specific aims of the thesis were to: 1) examine the relational-transactional dimensions of psychological contracts, 2) develop a comprehensive set of workplace obligations for use with employees, 3) consider alternative dimensions of employee psychological contracts, 4) demonstrate reciprocity between obligations, and 5) determine whether psychological contracts directly affect career cognitions. The thesis contains four quantitative studies. Data were collected using self-report questionnaires that contained both established and new measures. Most participants were employees from a large insurance company, government vocational services or educational institutions. The analyses included canonical correlation, factor analysis, development of measurement models and structural analysis. The findings did not strongly support a distinction between relational and transactional obligations. Instead, a five-factor model of psychological contracts emerged from an expanded set of workplace obligations when it was used with two separate employee samples. This model demonstrated reciprocal relationships between the dimensions of employee and employer obligations. It was also found that alternative dimensions of the psychological contract have a direct influence on organisational commitment and career satisfaction. The thesis supports several general conclusions about the nature of employee psychological contracts, appropriate measures and future research. General workplace obligations that apply across different workplaces can be found, and these should continue to be refined. Such workplace obligations group in meaningful ways, and they can be usefully studied in terms of employer support and employee attitudes to work, rather than in terms of relational and transactional dimensions. Furthermore, this thesis shows that reciprocity in psychological contracts can be demonstrated by correlations between dimensions of employee and employer obligations. The measure used for studying reciprocity was new, and it requires further work. However, this measure is as reliable and valid as any currently available. Measurement is the single most urgent issue facing researchers. Finally, this thesis provides sufficient empirical evidence to support the claim that psychological contracts are an important variable for the understanding of careers.