Hundreds of thousands marched across French cities on Saturday protesting underfunded schools, crumbling infrastructure, and a cost-of-living crisis sharpened by fuel prices up 36% this year. The proximate trigger is the US-Israel war on Iran sending European gas prices soaring as winter approaches. But the structural cause runs deeper: France has not balanced a budget since 1974, and public debt has ballooned to nearly 120% of GDP. Australian economists are reading France not as a foreign curiosity but as a trajectory warning. Luke Hartigan, a senior economics lecturer at the University of Sydney, frames the situation as "binary" — citizens demanding better services and cost-of-living relief from a government whose fiscal position is increasingly dire. "If you think about trajectories, they give us an idea of where we could potentially be if we continue down this path," Hartigan said. "It's a warning signal." The numbers tell the story in compressed form. Australia's total government debt sits at 53% of GDP — benign next to France's 120%. But a decade ago it was 40%, and a decade before that it was just under 10%. That's a fivefold increase in twenty years. French public spending now accounts for 58% of its economy. Australia's equivalent figure is 40% — the highest on record outside the pandemic, and at parity with the US and UK. Bob Breunig, director of the ANU's Tax and Transfer Policy Institute, identifies the core tension: a growing gap between what voters believe government should deliver and what politicians can actually fund. "One thing that is happening everywhere is this narrative that the government should be able to solve all your problems," Breunig said. "It's failing in both places, but it's pointier there than here." France's bond markets reflect the alarm — the spread between French and German 10-year debt is at its widest since the 2011 European debt crisis. The structural pressures on Australia's budget are enumerable and growing: an ageing population, the NDIS, higher interest rates, and a bipartisan push for greater defence spending. None of these are cyclical. Each represents a ratchet that locks in higher baseline spending regardless of the economic cycle. The opposition attacks high government spending as deadening to economic dynamism; Breunig says he is "agnostic" on whether repair comes through lower spending or higher taxes, but insists the conversation must happen. The French case demonstrates what happens when the conversation doesn't happen for fifty years. Macron's decade in power has produced repeated failed attempts to rein in spending against entrenched public expectations. "All these protesters are asking the government to help them out, but the government has maxxed out the credit card," Breunig said. The federal government in Australia still has borrowing capacity and flexibility. France does not. The core question for Australia is not whether it resembles France today — it plainly doesn't — but whether its debt trajectory, left unchecked, converges toward the same fiscal trap within a generation. Hartigan underlines that a lacklustre economy compounds fiscal problems, making productivity growth not an abstraction but a load-bearing variable. As Breunig puts it: "We need an honest public conversation about what the government can be expected to do and what it can't, and then a conversation about how much that would cost and whether we are willing to pay for that."
