Australia’s supermarket sector faces ongoing concerns about a lack of competition, prompting the Green Institute, the research arm of the Greens party, to propose establishing a government-owned chain of supermarkets nationwide. While the initiative aims to address issues such as high grocery prices and limited bargaining power for farmers and suppliers, experts remain skeptical about its feasibility and effectiveness.

Currently, Coles and Woolworths dominate the Australian grocery market, controlling approximately two-thirds of sales. Aldi holds around 9%, with smaller competitors sharing the remainder. This market concentration has led to criticism from consumers and suppliers alike, citing inflated prices and limited alternatives as persistent problems. The Green Institute’s proposal envisions the creation of 624 supermarkets and 13 distribution centres through a combination of new developments and acquisitions, at an estimated cost of $25.1 billion over five years.

Max Chandler-Mather, executive director of the Green Institute and a former member of parliament, argues that public ownership of supermarkets would ensure more affordable prices on essential goods. He draws parallels to publicly funded services like Medicare and public schools, suggesting such an approach could provide a stable, equitable alternative within a market dominated by a few large players. The proposed government chain would aim for about 20% market share—still less than either Coles or Woolworths but substantially larger than other competitors.

However, critics caution that introducing a government supermarket chain may not address the core challenges. Establishing a network that rivals major private players requires more than just price competitiveness; quality, convenience, product range, reliability, and logistics are critical factors. Coles and Woolworths have developed extensive purchasing and distribution infrastructures over decades, while successful newcomers such as Aldi have taken significant time and resources to scale.

There are concerns that government ownership could mask the true costs of operations, with taxpayers underwriting capital expenditures and potential losses. Any short-term savings for consumers might be offset by higher taxes or government debt over time. Some analysts suggest that targeted interventions in remote or underserved communities could be more cost-effective, such as freight subsidies or support for local stores, rather than establishing an extensive government retail network.

Furthermore, public ownership would entail direct government involvement in supermarket pricing decisions, raising questions about political influence in the market. Experts argue that a stronger mechanism for enforcing competition law—such as introducing powers to break up firms that engage in anti-competitive behavior—could provide a more effective regulatory tool.

Efforts to improve competition may also include facilitating access to suitable retail sites for new entrants, enforcing merger laws to prevent further market concentration, enhancing price transparency, and supporting independent supermarkets. Still, significant change would likely require the entry of a major international supermarket group with considerable capital and expertise. Past attempts by large retailers, such as the German chain Kaufland, which withdrew plans to enter Australia in 2020 despite substantial investment, highlight the challenges of penetrating this market.

Given these complexities, Australia is expected to continue grappling with supermarket market concentration. Policymakers are encouraged to pursue incremental reforms that reduce barriers to competition and protect consumer and supplier interests, while maintaining caution regarding resource-intensive proposals like a taxpayer-funded national supermarket chain, which may introduce new fiscal risks without guaranteeing improved market outcomes.