Households In Australia Research Articles

Breaking bread: Assessment of household bread waste incidence and behavioural drivers

Bread, the most consumed floury product in the world, is one of the most wasted food products across the food supply chain. Yet, there is a paucity of research examining the magnitude of bread waste and behavioural drivers associated with it at the household level. This study analyses the incidence, behavioural drivers and disposal pathways of bread waste using a sample of 1462 households in Australia and a 7-day electronic diary method. Behavioural drivers related to bread waste were modelled using logistic regression models. The findings suggest that bread rolls, sliced bread and flat bread are the three most wasted bread products in Australian households. Higher grocery shopping frequency, ‘just-in-case’ buying, family households with young children and takeaway meal ordering are associated with higher bread waste. Bread disposal pathway analysis revealed that 55% of bread and bakery products are discarded through general waste bins, highlighting the immense potential of utilising bread waste in industrial processes such as biofuel production. Addressing bread and bakery waste can significantly contribute to achieving the SDG12.3 goal of halving the per capita food waste by 2030.

The smart TV in low-income migrant households: Enabling digital inclusion through social and cultural media participation

This paper reports on an ethnographic study that examined smart TV use in low-income migrant households in Australia. We find that the smart TV is used by migrant families for diverse forms of social and cultural participation. In addition, we find that YouTube – which is often accessed using the smart TV – is reshaping family media practices. We argue that while digital inclusion scholarship has focussed on access to and use of mobile phones, laptops and computers, the smart TV, perhaps more than any other device in the home, enables digital inclusion through intergenerational media engagement. This paper presents insights for policymakers and offers a new area for investigation for digital inclusion and media scholars.

Cost and Affordability of Habitual and Recommended Diets in Welfare-Dependent Households in Australia.

It is crucial to ensure healthy diets are affordable in low socioeconomic groups, such as welfare-dependent households, who experience higher rates of diet-related disease than others. This study assessed the cost of habitual (unhealthy) and recommended (healthy) diets in six welfare-dependent and six other, comparable Australian households, using either popular branded products or the cheapest available alternatives. It also assessed diet affordability in welfare-dependent households, before and after modest increases in government welfare payments introduced in early September 2023. Results confirmed that recommended diets were less expensive than habitual diets in all households unless the cheapest available products were included. This strategy reduced habitual diet costs by 35-37% and recommended diet costs by 30-32%. The lower cost differential could aid perceptions that healthy foods are more expensive than unhealthy foods. In April 2023, 23-37% of the income of welfare-dependent households with children was required to purchase recommended diets; this reduced only to 20-35% in September 2023. Hence, the increases in welfare payments were insufficient to meaningfully improve the affordability of healthy diets in the most vulnerable Australians. In the current cost-of-living crisis, there is an urgent need for more welfare support to help purchase healthy diets. Monitoring of diet cost and affordability is also required.

Understanding how designing physical data visualisations can influence behaviour change: a case study on consumer food waste reduction in Australia

Data visualisations from physical self-trackers have been studied as persuasive tools for behaviour change by encouraging reflection and action. This paper presents the preliminary findings of a longitudinal nine-week study among 30 households in Australia (104 participants with a control group) using data visualisations from physical self-trackers to reduce food waste. The study focused on households with working parents and their children, identified as the primary contributors to food waste. Combining theories of consumer behaviour psychology, interaction design and data humanism to form the basis of the research methodology, participants were given visual nudges and information to encourage food-saving behaviours, and physical self-trackers to visualise and share their actions. Results were triangulated through content and thematic analysis, and paired samples frequency comparison to provide comprehensive insights. The group with access to the probe was able to sustain newly formed habits for a longer duration compared to the control group. Creating their own methods of encoding data enabled agency, holding households accountable for their own actions and facilitating a deeper understanding of their own unique dynamics and collective behaviours that lead to food waste. Furthermore, the social and physical aspects of the study emerged as the most influential factors in driving long-term behaviour change.

Adoption of energy-efficiency measures by Australian low-income households

Increasing the adoption of energy-efficiency measures (EEM) by households is one of the practical strategies to increase energy efficiency and reduce greenhouse gas emissions. For the 3.24 million low-income households in Australia, partly due to their potentially disproportionately large waste of usable energy, there is a gap between the potential for energy efficiency through existing EEM and the actual energy-efficiency level. Many measures increase energy efficiency in buildings; however, barriers persist for such households to adopt these measures, of which limited research has yet to be conducted. In response, this study examines the relationships involved by a questionnaire survey of 212 low-income households in Australia, showing that financial barriers have the greatest influence followed by split incentive barriers, with the provision of information having no significant role to play. This paper contributes to filling the gap of limited energy-efficiency research involving low-income households, revealing the effect of energy-efficiency barriers on their adoption of EEM.

Moral licensing and habits: Do solar households make negligent choices?

Orienting household behaviors towards more efficient use of energy in the home is crucial to climate change mitigation efforts. The objective of this work is to examine the social-psychological antecedents of energy curtailment in solar households. Using an online survey (n = 257) of solar households in Australia, the study validates an augmented model of planned behavior using partial least squares structural equation modeling (PLS-SEM). The study shows that the path of a standard construct, from perceived behavioral control to intentions, is interrupted by moral licensing, a concept that has been largely ignored in studies applying the standard model of planned behavior. The study provides fresh insight into how consumers vindicate wasteful energy consumption behavior through moral licensing. Amongst its contributions, the study shows that social influence is the most important driver of intentions and behavior. The habitualised use of energy has a significant, negative effect on behavior. This work has several recommendations for retailers and policy makers in global energy markets on how to minimise licensing and negligent habits, and at the same time, it opens up new research avenues in the ethical consumption discourse.

Barriers to Energy Efficiency: Low-Income Households in Australia

Low-income housing plays an important, but frequently overlooked, role in energy use reduction. Barriers persist for low-income households to participate in energy efficiency programs and adopt efficient lifestyles. However, there has been only limited research into energy efficiency barriers faced by low-income households. Existing energy research studies primarily focus on homeowners whose demographic and socio-economic profiles are likely to be very different from low-income households or renters—limiting the applicability of previous findings to low-income households. This study aims to identify and evaluate the importance of the energy efficiency barriers faced by low-income households. A questionnaire survey was conducted with 212 low-income households in Australia. After randomly dividing the data into calibration and validation samples, an exploratory factor analysis (EFA) of the calibration sample identifies four energy efficiency barrier factors of financial, decision-making, information, and split incentives. These four factors are then validated by confirmatory factor analysis (CFA) of the validation sample in terms of goodness-of-fit, reliability, and validity to confirm financial as the most highly rated energy efficiency barrier. This research contributes to bridging the knowledge gap of the energy efficiency barriers of low-income households and providing a validated CFA model as a tool for assessment. The results provide a better understanding of the barriers involved and research evidence to facilitate the formulation of policies to overcome them.

Multiobjective Long-Period Optimal Planning Model for a Grid-Connected Renewable-Battery System

This article develops a practical framework for the multiobjective optimal planning of a grid-connected renewable-battery system considering a long-period operation. The capacities of wind turbine, solar photovoltaic (PV), and battery storage are optimized by minimizing three objective functions: cost of electricity (COE), grid dependence (GD), and total curtailed energy (TCE). A new rule-based energy management is developed for the long-period operation, where: 1) the capacity degradations of PV and battery are applied; 2) purchase and sell electricity prices are updated for each year using interest and escalation rates; and 3) the salvation value of the components is considered to achieve a realistic economic analysis of the planning problem. The developed multiobjective optimal planning model is examined using the long-period (ten years) real data of wind speed, solar insolation, ambient temperature, and load consumption for a grid-connected household in Australia. It is found that a household with the minimum GD (0.008%) results in a COE of 116 ¢/kWh with a TCE of 100 MWh in ten years. The proposed optimal planning framework based on the long-period operation is compared with the short-period operation.

Household food waste and pathways to responsible consumer behaviour: evidence from Australia

PurposeThis paper aims to stimulate the pursuit of waste-free food consumption and develop guidelines to avoid irresponsible consumer behaviours. In doing so, the paper answers the questions: How much food is thrown away by Australian households? What are the causes of food wasted? And, how motivated are Australian household members to reduce food waste?Design/methodology/approachAn online survey was completed by a demographically representative sample of 5,272 households in Australia to address these questions. Using the state-wise data set and a structural equation modelling technique, this paper analyses behavioural and socio-demographic factors that influence household food waste in Australia.FindingsThe study identified that inedible food waste was the most common waste that people threw away (69%). The second-largest contribution towards waste came from meal leftovers (44%). The study identified household members not finishing their meal and cooking too much food as the leading causes of food waste from meal leftovers. Furthermore, household food members were unable to identify whether the food was safe to eat, uncertain whether they would eat prepared food that was saved for later consumption and remained confused about when to discard food. Finally, 42% indicated a high level of motivation to reduce food waste, while 34% indicated a moderated level.Originality/valueThis study's findings contribute to the practical challenges associated with the measurement of food waste in households. Further, the study provides insights to policymakers and practitioners to develop customised interventions to reduce household food waste.

An Actor-Critic approach for control of Residential Photovoltaic-Battery Systems

Abstract The rationale of shifting towards green energy, along with the cost reduction and the increasing capacity of lithium-ion batteries, has motivated the end-users to go for energy storage systems integrated with solar technology solutions. Such systems provide the end-users with greater flexibility, thereby enhancing their role as prosumers in a range of grid-management programs. In this regard, we consider a residential household equipped with a battery and photovoltaic panels, collectively known as the photovoltaic-battery (PV-B) system. We further learn (off-line) a deterministic sub-optimal policy for charging/discharging of the residential battery using an actor-critic reinforcement learning based method. Such proposed approach, named polynomial deterministic policy gradient (PDPG), does not require any model of the system and uses polynomials as function approximator, as opposed to conventional neural networks. The usefulness of the proposed approach is tested on real power data (demand and PV generation) of a residential household in Australia. Numerical simulations indicate that the proposed PDPG algorithm outperforms the OFFON control approach in terms of electricity bill savings and the model-based receding horizon control in terms of computation time.

Refrigerator cost trap for low-income households: Developments in measurement and verification of appliance replacements

Energy efficiency of domestic refrigerators has markedly improved over recent years. Despite these improvements, low-income households in Australia still tend to own older and less energy-efficient refrigerators. Replacement of old refrigerators with energy-efficient appliances presents an important opportunity to reduce both greenhouse gas emissions and the electricity bills of households for sustainable development. This paper presents the measurement and verification of energy savings from a sample of 16 household refrigerator replacements under the Appliance Replacement Offer of the New South Wales Government, Australia. In-home monitoring and laboratory testing were conducted for both old and new refrigerators. A key challenge for this study was to estimate the energy savings of the replacement in each household based on limited in-home monitoring data. The annual energy savings from the refrigerator replacement in the households were estimated using the artificial neural networks (ANN) models for indoor air temperature prediction and the empirical models for the refrigerator energy consumption estimation. The experimental and estimation results both showed that most of the households achieved substantial energy savings from the replacement. The average annual energy cost savings and the average payback period of the refrigerator replacements were 53% and 4.3 years, respectively. It was also found that the energy savings could be compromised if the size of the new refrigerator was much larger than the old unit or if the efficiency of the old refrigerator was reasonably good.

The nature and prevalence of kinship care: Focus on young kinship carers

AbstractYoung kinship carers tend to be overlooked in kinship care policy and practice. This Australian research project explored the prevalence of kinship care households in Australia, with a particular focus on households headed by young kinship carers. Census data were utilized to explore the number of kinship care households across the carer age spectrum and some of their characteristics, including households with Indigenous carers and carers with a culturally and linguistically diverse (CALD) identity. Characteristics of households headed by carers aged 16–30 years were explored in some detail, and comparisons made with young parents. The data pointed to particular challenges for young kinship carers in relation to post‐secondary education, employment and income security. Implications for policy and practice are discussed.

From me to us: Strengthening our Financial Capabilities

For low‐income or precariously employed households in Australia, the re‐allocation of risk over the past forty years has four crucial economic dimensions: the fraying of the social security net; changes in labour market dynamics; heightened uncertainty arising from income volatilities; and new hazards generated by the financialisation of daily life. Household financial capabilities are negatively influenced by the compounding impacts of each of these risks. Case examples from a BSL study illustrate each impact and their interactions. The dominant idea that individual capabilities are malleable (and thus can be optimised) whilst circumstances and norms are fixed is countered by an expanded view of Sen’s/Nussbaum’s capability approach (CA) that includes collective capabilities. Collective capabilities can change norms, and so, the concept provides a needed link between the political and macroeconomic movement of risk re‐allocation and individual or household financial capabilities. The Australian Unemployed Workers’ Union is used as an example to show how collective action can challenge structural conditions, and expand or protect the capabilities of individuals.

Becoming a Female‐Breadwinner Household in Australia: Changes in Relationship Satisfaction

AbstractObjectiveThis study longitudinally investigated the associations between becoming a female‐breadwinner household and changes in relationship satisfaction for men and women.BackgroundFemale‐breadwinner households pose a fundamental challenge to gender norms, particularly in countries such as Australia with a strong male breadwinner culture. Despite an increase in their prevalence, the implications for relationship satisfaction is understudied. Hypotheses were formulated based on specialization, relative resource, role collaboration, and doing gender theories.MethodA total of 17 waves of the Household, Income and Labour Dynamics in Australia household panel survey (76,866 observations, 11,986 people) and fixed effects models were used to study the associations between changes in breadwinner arrangements and relationship satisfaction. Building on previous research our breadwinner typology combined employment and income differences between partners, differentiating single earners from dual earners.ResultsBoth men and women became less satisfied when they transitioned to dual‐earner households where women out‐earned their partners. Becoming a female‐breadwinner household due to male unemployment or illness decreased relationship satisfaction for women. Respondents were most satisfied when they were in male‐breadwinner, female‐homemaker households. For women, but not men, gender role attitudes influenced some of these associations.ConclusionThe results extend our understanding of the consequences of the increasing prevalence of female‐breadwinner households and suggest that they may be contributing to lower relationship quality and stability.

Understanding the experience of social housing pathways

This report is part of an Australian Housing and Urban Research Institute (AHURI) Inquiry examining how social housing pathways could be reimagined to provide more effective assistance for low-income households in Australia. This research sets out to understand the ways in which individuals and households experience pathways into, within and out of the Australian social housing system.

Data Mining to Uncover Heterogeneous Water Use Behaviors From Smart Meter Data

AbstractKnowledge on the determinants and patterns of water demand for different consumers supports the design of customized demand management strategies. Smart meters coupled with big data analytics tools create a unique opportunity to support such strategies. Yet, at present, the information content of smart meter data is not fully mined and usually needs to be complemented with water fixture inventory and survey data to achieve detailed customer segmentation based on end use water usage. In this paper, we developed a data‐driven approach that extracts information on heterogeneous water end use routines, main end use components, and temporal characteristics, only via data mining existing smart meter readings at the scale of individual households. We tested our approach on data from 327 households in Australia, each monitored with smart meters logging water use readings every 5 s. As part of the approach, we first disaggregated the household‐level water use time series into different end uses via Autoflow. We then adapted a customer segmentation based on eigenbehavior analysis to discriminate among heterogeneous water end use routines and identify clusters of consumers presenting similar routines. Results revealed three main water end use profile clusters, each characterized by a primary end use: shower, clothes washing, and irrigation. Time‐of‐use and intensity‐of‐use differences exist within each class, as well as different characteristics of regularity and periodicity over time. Our customer segmentation analysis approach provides utilities with a concise snapshot of recurrent water use routines from smart meter data and can be used to support customized demand management strategies.

The reverse mortgage conundrum: Perspectives of older households in Australia

Ageing populations in the Western World over the last few decades have necessitated the development of financial products to assist older people face the challenges of ageing. One such product is the reverse mortgage where homeowners unlock the equity in their residential property through a mortgage loan, secured over the property. These loans normally have no mortgage payments and are aimed at an older demographic. Such mortgages have been increasing in popularity in the United States and the United Kingdom, but growth in Australia's reverse mortgage market has been slow and the majority of financial institutions that once offered such mortgages have left the market. The purpose of this article is to explore reasons for this observation. To achieve this purpose, 31 people aged 65 and older were interviewed about their views on reverse mortgage and analysed using nVivo. Analysis showed that reverse mortgages are unpopular due to strongly negative views about the product itself and perceived the risks associated with them due to the debt and potential loss of assets as well as high interest and charges. While some participants would not enter a reverse mortgage due to a desire to pass on an estate to children, others were ambivalent about this. While this negativity may be overcome through a redesign aimed toward reducing these perceived risks, inherent characteristics as a debt instrument suggest that reverse mortgages are unlikely to be attractive, to the current generation of people aged over 65.

Recent estimates of the out-of-pocket expenditure on health care in Australia.

Objective The aims of this study were to estimate the average annual out-of-pocket (OOP) expenditure on health care by households in Australia in 2015-16, and to compare this with the estimate for 2009-10. Methods Data from the most recent Household Expenditure Survey (HES) conducted by the Australian Bureau of Statistics were used. Various statistical methods were used to estimate the annual OOP expenditures at the household and national levels. Results The average annual OOP expenditure was A$4290 per household, representing 5.8% of the amount spent on all goods and services. Private health insurance (PHI) premiums, although not a direct expenditure on health care, were 40.6% of the total OOP expenses. Of the remaining 59.4%, nearly half was spent on doctors and other health professionals, and approximately one-third was spent on medicines. Dental treatments and specialist consultations were the most expensive, whereas visits to general practitioners incurred the least OOP expenditure. Households with PHI (58.6%) spent fourfold more on health care than those not insured. Compared with the 2009-10 survey, the biggest increases were in the cost of PHI (50.7%) and copayments to specialists (34.8%) and other health professionals (42.0%). Conclusions OOP expenditure on health care as a proportion of the total household expenditure on all goods and services has increased by more than 25% between 2009-10 and 2015-16. What is known about the topic? Australian households incur OOP expenses for health care in Australia for a wide range of goods and services, such as copayments to doctors and other health professionals beyond the Medicare rebates, the cost of medicines and other pharmaceutical goods not covered entirely by the Pharmaceutical Benefits Scheme and PHI premiums. Although other estimates of OOP expenditure are available in official reports of the Australian Institute of Health and Welfare, they are based on administrative records rather than consumer reports, and cannot be disaggregated by item or the characteristics of households. What does this paper add? This paper provides detailed information on OOP expenditure on health care as reported by a probability sample of households interviewed for the HES conducted by the ABS during 2015-16. These estimates of OOP expenditure, based on consumer reports, add a further dimension to the information available from administrative records only. What are the implications for practitioners? Practitioners should take account of the effect of increasing copayments for their services, especially on patients belonging to the lower socioeconomic categories. Increasing copayments may lead to people foregoing medical care. Health planners and politicians should note the steady upward drift in OOP expenses and factor these into their policies for future funding of health care.

Air-conditioning in low income households; a comparison of ownership, use, energy consumption and indoor comfort in Australia

Air-conditioning and energy use are important topics at present, particularly in Australia where rising electricity prices and a changing climate are placing increasing strain on one of the world's longest interconnected electricity networks. At the same time, there is a concern that some consumers are particularly vulnerable to these changes. This study analyses three data-sets consisting of energy use and survey information from several thousand households, with the aim of better understanding the ownership, use, energy consumption and comfort outcomes related to air-conditioning in low income households in Australia. The findings suggest that low income households do tend to own different types of air-conditioning appliances, are more likely to reside in different types of buildings, be located in non-metropolitan areas, and belong to an older age demographic. These differences may have a greater influence on air-conditioning use behaviours (including energy use and comfort), than simply the fact that a household has a low income. Hence it is suggested that potential vulnerability measures should not be based on income alone.

Exploring the Effectiveness of an Energy Efficiency Behaviour Change Project on Well-Being Outcomes for Indigenous Households in Australia

The Koorie Energy Efficiency Project (KEEP) was a Victoria-based, Australian social marketing initiative designed to provide support to Indigenous households so they could better manage their energy bills by reducing or controlling their energy use. The program was delivered by trained, Indigenous project employees who visited Indigenous households in metropolitan and regional parts of the state. During the home visit, they provided an energy efficiency audit, as well as specific energy efficiency tips and advocacy support. Minor draft-proofing products were also supplied to each household. As part of this project, dwelling and householder information was gathered during each home visit, as well as measures of energy efficiency knowledge, behaviours, and well-being of the main householder before and after a home visit. The results indicate that home visits to support the energy efficiency of indigenous households are effective in terms of encouraging new energy efficiency knowledge, behaviours, and broader elements of well-being. Furthermore, the home visit was found to be effective across all home types, but was significantly more effective in reducing energy related stress and discomfort in traditional houses and traditional apartments. These households were also often small and densely occupied. This suggests that when social marketing programs use methods that are culturally suitable and respectful, such as those used in KEEP, they become a powerful tool to help drive social change in Indigenous communities. The authors conclude that such programs in future will be hindered in their effectiveness unless property owners, such as those of social housing, do not urgently address the maintenance of their properties and ensure they provide fit living conditions for the tenants.