Multilingual Repertoires at Play: Structure and Function in Reported Speech Utterances of Alyawarr Children

While there is increasing international interest in approaching language analysis with the prism of repertoire, research on repertoire on the Australian continent is still very much in the shadow of “traditional” language-centric documentary work. This paper will explore the question of how users of Australian, English-lexified contact varieties exploit their multilingual repertoires to achieve local, conversation–organizational ends. Drawing upon a corpus of video recordings from Ipmangker, a Central Australian Aboriginal community, and using the analytical methods of interactional and comparative variationist linguistics, I examine the production of reported speech by four 6- to 7-year-old Alyawarr children in a play session at home. A set of prosodic, phonological, morphological and discourse-pragmatic features are shown to form a coherent set of linguistic elements with which these multilingual children can contrast reported speech from the surrounding talk. Moreover, the use of reported speech in play not only allows the children to organize their interaction, but responds to and constructs the epistemic landscape of play.

A model of population dynamics with complex household structure and mobility: implications for transmission and control of communicable diseases

Households are known to be high-risk locations for the transmission of communicable diseases. Numerous modelling studies have demonstrated the important role of households in sustaining both communicable diseases outbreaks and endemic transmission, and as the focus for control efforts. However, these studies typically assume that households are associated with a single dwelling and have static membership. This assumption does not appropriately reflect households in some populations, such as those in remote Australian Aboriginal and Torres Strait Islander communities, which can be distributed across more than one physical dwelling, leading to the occupancy of individual dwellings changing rapidly over time. In this study, we developed an individual-based model of an infectious disease outbreak in communities with demographic and household structure reflective of a remote Australian Aboriginal community. We used the model to compare the dynamics of unmitigated outbreaks, and outbreaks constrained by a household-focused prophylaxis intervention, in communities exhibiting fluid vs. stable dwelling occupancy. We found that fluid dwelling occupancy can lead to larger and faster outbreaks in modelled scenarios, and may interfere with the effectiveness of household-focused interventions. Our findings suggest that while short-term restrictions on movement between dwellings may be beneficial during outbreaks, in the longer-term, strategies focused on reducing household crowding may be a more effective way to reduce the risk of severe outbreaks occurring in populations with fluid dwelling occupancy.

Impact of three annual tobacco tax rises on tobacco sales in remote Australian Aboriginal community stores

BackgroundThere is strong evidence from many settings that tobacco tax rises which increase prices reduce tobacco consumption, but only limited evidence from Indigenous settings.MethodsWe analysed 3 years (2016–2018) of weekly sales data from 32 stores in remote Aboriginal communities. We used interrupted time series analysis to estimate the immediate impact of the price rice following annual 12.5% tobacco tax rises on sales on (A) stick equivalents of tobacco and (B) fruit and vegetables (kg) per $A1000 of grocery sales, and on the trend in sales between price rises.ResultsWe detected 5.8% and 8.2% immediate declines in tobacco sales following the price rises associated with annual 12.5% tax rises in 2016 and 2018, and a non-significant decline (1.6%) following the 2017 tax rise. Decreased sales were mainly driven by declines in mainstream and premium factory-made cigarettes. Fruit and vegetable sales did not change at the time of tobacco price rises.ConclusionFor the first time, we demonstrated evidence of price-sensitivity and the immediate impact of price rises from tobacco tax rises on tobacco sales in remote Aboriginal communities. We acknowledge that Australia already has very high tobacco taxation and prices, but recommend further increases to the taxation of roll-your-own (RYO) tobacco to prevent smokers and industry using cheaper RYO cigarettes to undermine this impact of high tobacco taxes and prices.