105 resultados para COMPARING COURNOT


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There is much debate in community psychology literature as to the dimensions underlying the construct psychological sense of community (PSOC). One of the few theoretical discussions is that of McMillan and Chavis (1986), who hypothesized four dimensions: Belonging; Fulfillment of Needs; Influence; and Shared Emotional Connection. Debate has also emerged regarding the role of identification within PSOC. However, few studies have explored the place of identification in PSOC. In addition, while PSOC has been applied to both communities of interest and geographical communities, to date little research has compared a single group’s PSOC with a community of interest to their PSOC with their geographical communities. The current study explored PSOC with participants’ interest and geographical communities in a sample (N = 359) of members of science fiction fandom, a community of interest with membership from all over the world. Support emerged for McMillan and Chavis' (1986) four dimensions of PSOC, both within participants’ PSOC with their geographical communities and with their community of interest, with the addition of a fifth dimension, that of Conscious Identification. All dimensions emerged as significant predictors of overall sense of community in both community types. Participants reported higher levels of global PSOC with fandom than with their geographical communities, a pattern that also emerged across all factors separately. These results, and implications for PSOC research, are discussed.

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While a range of exogenous and endogenous factors affect the standard of  living of most Australians in a more-or-less uniform way, the different social and economic-policies of each state government are likely to affect the levels of sustainable well-being experienced across the various states. With this in mind, a Genuine Progress Indicator (GPI) - a newly devised measure of sustainable well-being - is calculated for Victoria and the Rest- of- Australia (Australia minus Victoria) for the period 1986-2003. The GPI takes account of the various costs and benefits of economic activity in order to investigate the impact of a growing state or national economy on sustainable well-being.
By analysing the GPI results and the policies undertaken by the Victorian government, it is possible to determine what the state of Victoria is doing differently to the Rest-of-Australia that might be beneficial or detrimental to sustainable well-being. While our study reveals that Victoria is performing better than the Rest-of-Australia, it also highlights flaws in the policy-making process that have resulted in Victoria's Gross State Product (GSP) overstating its genuine progress.

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In the twentieth century, industrialized economies around the world enacted legislation to protect free and fair trade. These legislative initiatives were often precipitated by exposure to unethical business practices. With the fairly recent corporate business scandals around the world, ethics is once again at the forefront of concerns about commercial exchanges. This situation has become more complex with the globalization of commercial trade. Subsequently, there have been various attempts by international organizations to regulate the conduct of global corporations. One key technique to try to regulate the conduct of corporation is the use of codes of ethics. This study examines corporate codes of ethics and the measures in place to communicate the ethos of the codes to both internal and external stakeholders in three countries. A questionnaire that was non-sponsored and unsolicited was sent to the top companies operating in the private sector within Australia, Canada and the USA. Nine key areas of corporate ethics are examined and they are divided into two categories as follows:

Regulation
Consequences for a Breach
Ethical Perfonnance Appraisal
Conduct Ethical Audits

Staff Support

Support of Whistle blowers
Guide to Strategic Planning
Ethics Committee
Ethics Training Committee
Staff Training
Ethics Ombudsman.

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Background: In Australia and internationally, there is concern about the growing proportion of women giving birth by caesarean section. There is evidence of increased risk of placenta accreta and percreta in subsequent pregnancies as well as decreased fertility; and significant resource implications. Randomised controlled trials (RCTs) of continuity of midwifery care have reported reduced caesareans and other interventions in labour, as well as increased maternal satisfaction, with no statistically significant differences in perinatal morbidity or mortality. RCTs conducted in the UK and in Australia have largely measured the effect of teams of care providers (commonly 6–12 midwives) with very few testing caseload (one-to-one) midwifery care. This study aims to determine whether caseload (one-to-one) midwifery care for women at low risk of medical complications decreases the proportion of women delivering by caesarean section compared with women receiving 'standard' care. This paper presents the trial protocol in detail.

Methods/design
: A two-arm RCT design will be used. Women who are identified at low medical risk will be recruited from the antenatal booking clinics of a tertiary women's hospital in Melbourne, Australia. Baseline data will be collected, then women randomised to caseload midwifery or standard low risk care. Women allocated to the caseload intervention will receive antenatal, intrapartum and postpartum care from a designated primary midwife with one or two antenatal visits conducted by a 'back-up' midwife. The midwives will collaborate with obstetricians and other health professionals as necessary. If the woman has an extended labour, or if the primary midwife is unavailable, care will be provided by the back-up midwife. For women allocated to standard care, options include midwifery-led care with varying levels of continuity, junior obstetric care and community based general medical practitioner care. Data will be collected at recruitment (self administered survey) and at 2 and 6 months postpartum by postal survey. Medical/obstetric outcomes will be abstracted from the medical record. The sample size of 2008 was calculated to identify a decrease in caesarean birth from 19 to 14% and detect a range of other significant clinical differences. Comprehensive process and economic evaluations will be conducted.

Trial registration: Australian New Zealand Clinical Trials Registry ACTRN012607000073404.

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This study addresses a gap in much of the research involving stress among high-risk occupations by investigating the effects of linear, non-linear and interaction models in a law enforcement organization that has undertaken a series of efficiency-driven organizational reforms. The results of a survey involving 2085 police officers indicated that the demand-control-support model provided good utility in predicting an officer's satisfaction, commitment and well-being. In particular, social support and job control were closely associated with all three outcome variables. Although the demand × control/support interactions were not identified in the data, there was some support for the curvilinear effects of job demands. The results have implications for the organizational conditions that need to be addressed in contemporary policing environments where new public management strategies have had widespread affects on the social and organizational context in which policing takes place.

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The intraday high–low price range offers volatility forecasts similarly efficient to high-quality implied volatility indexes published by the Chicago Board Options Exchange (CBOE) for four stock market indexes: S&P 500, S&P 100, NASDAQ 100, and Dow Jones Industrials. Examination of in-sample and out-of-sample volatility forecasts reveals that neither implied volatility nor intraday high–low range volatility consistently outperforms the other.

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The model draws from theories of industrial economics and supply chain literature, and is an attempt to advance the construction supply chain field through the development of an industrial organisational methodology to describe construction supply chains.
Empirical studies have examined the industrial organisation of other industries, typically forming descriptions based upon vertical integration and horizontal market concentration. A review of the trends in the supply chain literature indicate there is a need to develop a model to describe the industrial organisation of the construction industry through supply chain structure. The merging of the supply chain concept with the industrial organisation model as a methodology for understanding the structural characteristics is an important contribution to construction economic theory. The paper begins to develop a language for describing the structure and behaviour of supply chains specific to the construction industry and is so doing suggests a neo-industrial organisation approach.

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The term 'methodology' is discussed before we consider the methodological contributions of each team of chapter authors (Cobb, Gresalfi & Hodge; Nathan, Eilam & Kim; and Saxe, Gearhart, Shaughnessy, Earnest, Cremer, ltabkhan, Platas & Young) and examine links between them. We generate questions arising from our analyses of the three chapters in this section and formulate views on classroom learning in mathematics that could be researched through complementary analyses. The subsequent discussion of data-collection instruments appropriate to further analyses is informed by our own research perspectives. This commentary concludes with a summary of what we have learnt through comparing the three methodologies and how simultaneously focusing on data from different theoretical perspectives might help to show the way forward in researching the richness of learning in classrooms.

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We investigate a dynamic Cournot duopoly with intraindustry trade, where firms invest in R&D to reduce the level of iceberg transportation costs. We adopt both open-loop and closed-loop equilibrium concepts, showing that a unique (saddle point) steady state exists in both cases. In the open-loop model, optimal investments and the resulting efficiency of transportation technology are independent of the relative size of the two countries. On the contrary, in the closed-loop case firms’ R&D incentives are driven by the relative size of the two countries. Policy implications are also evaluated.

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Colour patterns and their visual backgrounds consist of a mosaic of patches that vary in colour, brightness, size, shape and position. Most studies of crypsis, aposematism, sexual selection, or other forms of signalling concentrate on one or two patch classes (colours), either ignoring the rest of the colour pattern, or analysing the patches separately. We summarize methods of comparing colour patterns making use of known properties of bird eyes. The methods are easily modifiable for other animal visual systems. We present a new statistical method to compare entire colour patterns rather than comparing multiple pairs of patches. Unlike previous methods, the new method detects differences in the relationships among the colours, not just differences in colours. We present tests of the method's ability to detect a variety of kinds of differences between natural colour patterns and provide suggestions for analysis.

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The article demonstrates the similarity in the ways poets Lesbia Harford and Lorine Niedecker explored radical modernism. It notes the formal and thematic resemblances between the poets' writing and careers. It cites their uncanniness of poetics as an indicator of the effective global dissemination and specific political and aesthetic applications of Marxist ideologies in the early 20th century. The poets' attention to and resistance to the limitations of a gendered agency are also discussed.