Impacts of introduced aquaculture species on markets for native marine aquaculture products : the case of edible oysters in Australia

Economic competition between introduced and native aquaculture species is of interest for industry stakeholders since increased production can affect price formation if both aquaculture species are part of the same market or even substitutes. In this study, we focus on the Australian edible oyster industry, which is dominated by two major species—the native Sydney rock oyster (grown mainly in Queensland and New South Wales) and the non-native Pacific oyster (grown mainly in South Australia and Tasmania). We examine the integration of the Australian oyster market to determine if there exists a single or several markets. Short- and long-run own, cross-price and income flexibilities of demand are estimated for both species using an inverse demand system of equations. The results suggest that the markets for the two species are integrated. We found evidence that the development of the Pacific oyster industry has had an adverse impact on Sydney rock oyster prices. However, our results show that both species are not perfect substitutes. Demand for Sydney rock oysters is relatively inelastic in the long run, yet no long-run relationships can be identified for Pacific oysters, reflecting the developing nature of this sector.

Clothing Cultures, Volume 3, Issue 3

Tiziana Ferrero-Regis, guest editor of Vol. 1, issue 3, of Intellect journal Clothing Cultures. "Welcome to the third issue of Clothing Cultures. We are honoured to have served as the guest editors for this issue. The authors in this issue explore three intersecting themes in using various methods: identity, cross-cultural encounters and everyday practices related to designing, branding and wearing clothing. These themes are at the core of fashion and dress: as an everyday individual and social project, and as a system in which people and objects (clothing) globally circulate. The performance of identity (Goffman 1979; Butler 1990), social practices and the movement of people and commodities (Appadurai 1986, 1996) create and transfer cultural meanings..."

Competition Law in Australia [6th ed.]

Competition Law in Australia, 6th edition provides a comprehensive discussion of the provisions of the Competition and Consumer Act 2010 (Cth) (CCA) dealing with the regulation of competition and markets in Australia. This book covers disparate topics, such as restrictions in horizontal and vertical agreements, horizontal mergers and acquisitions, misuse of market power, and access to services necessary to compete in upstream or downstream markets. However, the unifying theme of this text is that it is not possible to use a formalistic approach in applying the CCA. The decisions of the courts, and the competition authorities responsible for implementing and enforcing the CCA, underline the need to undertake a detailed substantive economic analysis of the effect of the agreement or conduct at issue on competition, efficiency and consumer welfare.

Special Issue : Media/Politics in Indonesia [Editors]

Emma Baulch and Julian Millie are editors of this special issue.

“This is not a burning issue for me”: How citizens justify their use of wood heaters in a city with a severe air pollution problem

Although wood smoke pollution has been linked to health problems, wood burning remains a popular form of domestic heating in many countries across the world. In this paper, we describe the rhetoric of resistance to wood heater regulation amongst citizens in the regional Australian town of Armidale, where wood smoke levels regularly exceed national health advisory limits. We discuss how this is related to particular sources of resistance, such as affective attachment to wood heating and socio-cultural norms. The research draws on six focus groups with participants from households with and without wood heating. With reference to practice theory, we argue that citizen discourses favouring wood burning draw upon a rich suite of justifications and present this activity as a natural and traditional activity promoting comfort and cohesion. Such discourses also emphasise the identity of the town as a rural community and the supposed gemeinschaft qualities of such places. We show that, in this domain of energy policy, it is not enough to present ‘facts’ which have little emotional association or meaning for the populace. Rather, we need understand how social scripts, often localised, inform identity and practice.

Causal factors of hot air ballooning incidents : identification, frequency, and potential impact

Background: Hot air ballooning incidents are relatively rare, however, when they do occur they are likely to result in a fatality or serious injury. Human error is commonly attributed as the cause of hot air ballooning incidents; however, error in itself is not an explanation for safety failures. This research aims to identify, and establish the relative importance of factors contributing towards hot air ballooning incidents. Methods: Twenty-two Australian Ballooning Federation (ABF) incident reports were thematically coded using a bottom up approach to identify causal factors. Subsequently, 69 balloonists (mean 19.51 years’ experience) participated in a survey to identify additional causal factors and rate (out of seven) the perceived frequency and potential impact to ballooning operations of each of the previously identified causal factors. Perceived associated risk was calculated by multiplying mean perceived frequency and impact ratings. Results: Incident report coding identified 54 causal factors within nine higher level areas: Attributes, Crew resource management, Equipment, Errors, Instructors, Organisational, Physical Environment, Regulatory body and Violations. Overall, ‘weather’, ‘inexperience’ and ‘poor/inappropriate decisions’ were rated as having greatest perceived associated risk. Discussion: Although errors were nominated as a prominent cause of hot air ballooning incidents, physical environment and personal attributes are also particularly important for safe hot air ballooning operations. In identifying a range of causal factors the areas of weakness surrounding ballooning operations have been defined; it is hoped that targeted safety and training strategies can now be put into place removing these contributing factors and reducing the chance of pilot error.

Do Big-Four affilitates earn audit fee premiums in emerging markets?

The paper investigates whether Big-Four affiliated (B4A) firms earn audit premiums in an emerging economy context, using Bangladesh as a case. The joint determination of audit and non-audit service fees is also examined using a sample of 122 companies listed in the Dhaka Stock Exchange. Our findings reveal that although the B4A firms do not generally earn a fee premiumin Bangladesh, they charge higher audit fees for clients not purchasing non-audit services. This suggests that the B4A firms may actually lower audit fees to attract non-audit services, and cross subsidizes audit fees through non-audit-services fees. The lack of a B4A premium implies that there is lack of quality audit in emerging markets. We also document that audit and non-audit service fees are jointly determined in Bangladesh. Thus, we provide evidence of joint determination of audit and non-audit service fees in an emerging economy context.

Cryptic marketing : strategic targeting of subculture markets

This research aims to understand what factors influence consumers' behaviour to subculture marketing and how companies can strategically overcome potential brand alienation. Findings validate cryptic marketing as a strategy for organizations to communicate effectively with their chosen market through the use of cryptic cues, symbols and messages while circumventing negative responses from non-target audiences. The thesis contributes to extending current understanding of marketing communication through the use of covert strategies, employing covert tactics on the non-target, wider market instead of the target, subculture market.

Investigating tween children's capacity to conceptualise the complex issue of wellbeing

Wellbeing is an area that has gained increased global focus, particularly when considering children’s lives. With the growing focus on children’s wellbeing, it is apparent that this is an important aspect that is being considered in the policy and provision designed for children. The decision-making surrounding wellbeing provision for children typically occurs without the direct input of the children that these services are designed to benefit. With the children’s capacities being variably considered in wider society, opportunities for children to participate in decision-making on matters that affect them are often limited. The absence of children’s perspectives on matters that affect their lives, such as wellbeing, reveal that adults may be missing a key perspective when seeking to understand and cater for children’s wellbeing needs. This article outlines the results of a study that investigated how children aged 8 to 12 years o age (tweens) defined and conceptualised wellbeing. This article proposes that children can be included in the conceptualisation and development of policy and provision designed to benefit them and argues for increased presence of the voice and participation of children in wider societal initiatives.

Sustainability of public health interventions to reduce the risk of dioxin exposure at severe dioxin hot spots in Vietnam

Severe dioxin contamination at Bien Hoa and Da Nang airbases, Vietnam is of international concern. Public Health risk reduction programs were implemented in Bien Hoa in 2007-2009 and in Da Nang in 2009-2011. In 2009 and 2011 we reported the encouraging results of these interventions in improving the knowledge, attitude and practices (KAP) of local residents in reducing the dioxin exposure risk through foods. In 2013 we revisited these dioxin hot spots, aimed to evaluate whether the results of the intervention were maintained and to identify factors affecting the sustainability of the programs. To assess this, 16 in-depth interviews, six focus group discussions, and pre and post intervention KAP surveys were undertaken. 800 respondents from six intervention wards and 200 respondents from Buu Long Ward (the control site) were randomly selected to participate in the surveys. The results showed that as of 2013, the programs were rated as "moderately sustained" with a score of 3.3 out of 5.0 (cut off points 2.5 to <3.5) for Bien Hoa, and "well sustained" with a score of 3.8 out of 5.0 (cut off points 3.5 to <4.5) for Da Nang. Most formal intervention program activities had ceased and dioxin risk communication activities were no longer integrated into local routine health education programs. However, the main outcomes were maintained and were better than that in the control ward. Migration, lack of official guidance from City People's Committees and local authorities as well as the politically sensitive nature of dioxin issues were the main challenges for the sustainability of the programs.

Assessing the impact of crime on residential property markets

The aim of this research is to determine if a range of crimes in a suburb have an impact on the residential property sectors in that particular suburb. With the increasing media coverage of crime in specific locations, this knowledge of crime in Brisbane Australia is more available to potential residential property buyers This research is based on the analysis of the crime statistics for 30 suburbs in Brisbane across a range of major crime activities and compares the level of crime to property median prices, sales volume and in a range of suburbs the volume of sale and lease listings. The results of the research show a significant variation in the response of buyers in residential property markets based on the type of crime and the socio-economic status of the suburb. In a range of suburbs, value factors other than crime are the major drivers of the market. The study provides an insight into consumer behaviour in a major city and the response of residential property buyers to an increasing level and awareness of crime statistics in the suburbs they are considering to buy. Implications of this research are that with a greater level of awareness of factors that could be a disadvantage to some potential buyers are not always reflected across a full residential property market. Valuers, property financiers and the public need to be aware of the type of crime and locations that have a direct impact on property prices and saleability These results expand on the current knowledge of value drivers in major residential property markets.

Vision-based operations of a large industrial vehicle : autonomous hot metal carrier

Hot metal carriers (HMCs) are large forklift-type vehicles used to move molten metal in aluminum smelters. This paper reports on field experiments that demonstrate that HMCs can operate autonomously and in particular can use vision as a primary sensor to locate the load of aluminum. We present our complete system but focus on the vision system elements and also detail experiments demonstrating reliable operation of the materials handling task. Two key experiments are described, lasting 2 and 5 h, in which the HMC traveled 15 km in total and handled the load 80 times.

Women at work! evaluating equal employment policies and outcomes in construction

Purpose The purpose of this paper is to examine equal employment policies in Australia’s male-dominated construction industry and categorise the types of activities undertaken against an equal employment typology to identify links to outcomes for women in the form of increased participation and management. Design/methodology/approach To explore the issue of low representation of women in construction through the content analysis of 83 construction organisations’ equal employment opportunity (EEO) reports. Findings This industry is not engaging with equal employment issues and the numbers of women working in the industry and/or management are based on individual decision rather than an institutional commitment to equality in diversity. Research limitations/implications Australian legislation mandates organisational reporting of relevant data and offers public access to this information offering a unique data set. Practical implications An ageing population means that the predominately older male workforce is leaving construction in greater numbers with fewer potential replacements making new labour markets a vital consideration. Social implications Legislation and organisational policies designed to promote EEO for women have existed in numerous countries for decades. One objective of this legislation was to reduce male domination in senior positions and industries/occupations where women were under-represented. Despite this, few women are employed in construction in operational or management roles worldwide. Originality/value This study offers a comprehensive analysis of a male-dominated industry in one jurisdiction rather than a few selected cases and uses a broader rigorous typology for analysis that acknowledges both equal and different treatment options.

The influence of abrasive pretreatment on hot air drying of grape

The drying of grapes is a more complex process compared to the dehydration of other agricultural materials due to the necessity of a pretreatment operation prior to drying. Grape drying to produce raisins is a very slow process, due to the peculiar structure of grape peel, that is covered by a waxy layer.Its removal has benn so far carried out by using several chemical pre-treatments. However, they cause heterogeneity in the waxes removal and create microscopic cracks. In this paper an abrasive pretreatment for enhancing the drying rate and preserving the grape samples is proposed. Two cultivars of grape were investigated: Regina white grape and Red Globe red grape. The drying kinetics of untreated and treated samples were studied using a convective oven at 50 C. Fruit quality parameters such as sugar and organic acid contents, shrinkage, texture, peel damage (i.e. by SEM analysis) and rehydration capacity were studied to evaluate the effectiveness of abrasive pretreatment on raisins. Abrasive pretreatment contributed to reduce drying time and rehydration time. The treated and untreated dried grapes were significantly different (p<0.05) in sugar and in tartaric acid content. On the contrary, no significant differences (p<0.05) in malic and citric acids in texture peoperties between untreated and treated samples were observed.