Stagflation Returns: The RBA's View and What It Means for Investors


The Scenario Central Banks Fear

Stagflation is not a term central bankers use lightly. It tends to surface only when economic conditions begin to move in ways that are difficult to manage with conventional policy tools. Recent commentary from the Reserve Bank of Australia suggests that risk is moving back into focus as inflation proves more persistent while growth begins to slow.

Andrew Hauser, Deputy Governor of the Reserve Bank of Australia, described the current environment as a central banker’s nightmare, defined by inflation rising while economic activity weakens. That characterisation is deliberate. Central banks do not use language like this to describe routine conditions.

What it reflects is a shift in underlying dynamics. Inflation has moderated from its peak but remains elevated. Growth is losing momentum as higher interest rates flow through to households and businesses. At the same time, renewed pressure from energy markets is reintroducing cost shocks that monetary policy cannot easily offset. This combination places the economy in a setting where the usual policy responses no longer work cleanly.

What Is Stagflation and Why It Is Categorically Worse

Most economic challenges come with a clear policy direction. When growth slows, central banks can cut rates to support demand. When inflation rises, they can tighten policy to bring it under control. The process is not painless, but the path is defined.

Stagflation breaks that framework. It is the combination of high inflation, slowing growth and rising unemployment risk, conditions that pull policy in opposing directions at the same time. Inflation remains too high to justify easing, yet growth is too weak to absorb further tightening. The result is a constrained environment where every policy decision carries a cost.

The impact is felt across the economy. Households experience a steady erosion of purchasing power as prices rise faster than incomes. Businesses face margin pressure as input costs increase while demand softens. At a policy level, the challenge becomes structural. The Reserve Bank of Australia retains its tools, but their effectiveness is reduced because each action taken to address inflation risks deepening the slowdown.

This is what makes stagflation more difficult than inflation or recession on their own. It also explains why comparisons to the 1970s oil shock are resurfacing. The current environment is different in many respects, but the re-emergence of supply-driven inflation alongside weakening growth is a combination that markets and policymakers cannot ignore.

Why Stagflation Risk Is Rising Now

The current risk is not driven by a single factor. It reflects the convergence of supply shocks, weakening demand and a softer global backdrop.

On the supply side, energy is central. Disruptions to the Strait of Hormuz, which carries around 20% of global oil and LNG flows, have pushed oil prices from roughly USD67 per barrel to above USD100 in a matter of weeks. For Australia, the impact is direct. The country imports close to 90% of its refined fuel and relies heavily on diesel across mining, agriculture and transport. Higher energy prices flow quickly into operating costs across the economy. This is already evident at the corporate level, with Qantas Airways Limited warning its fuel bill for the second half of FY2026 could rise by up to AUD800 million, or around 32% above prior expectations.

At the same time, demand is softening. The Reserve Bank of Australia has lifted the cash rate to 4.10%, and those increases are now feeding through. Consumer sentiment has fallen sharply, with the Westpac-Melbourne Institute index dropping 12.5% to 80.1. Business confidence has also weakened to levels typically associated with periods of stress. Higher borrowing costs are compressing discretionary spending just as essential costs rise, creating a squeeze on both households and corporate earnings.

The global backdrop adds another layer. China’s recovery remains uneven, and its importance to Australian exports means any slowdown flows directly into domestic growth. At the same time, global growth forecasts are being revised lower, and energy demand is expected to contract by around 1.5 million barrels per day in the near term. Trade fragmentation and geopolitical tension are increasing costs across supply chains. Together, these forces create conditions where inflation remains elevated even as growth slows.

The Policy Dilemma: Why the RBA Is Constrained

The Reserve Bank of Australia is navigating a narrow path. Inflation at around 3.7% remains above the 2–3% target band, limiting the scope to cut rates. At the same time, growth is weakening and unemployment is beginning to rise, which constrains how far policy can be tightened without risking a sharper slowdown.

The Bank has made its priority clear. As Andrew Hauser stated, rates will need to reach a level that brings inflation back to target, even if that requires further increases. This reflects a decision to prioritise inflation control over near-term growth support. The credibility of that approach is critical. Allowing inflation expectations to drift higher would create a far more difficult adjustment later.

This does not mean policy is ineffective. It means the trade-offs are unavoidable. Monetary policy can influence demand, but it cannot directly resolve supply-driven inflation. The likely outcome is a period where rates remain restrictive, growth remains subdued and inflation takes longer to return to target. Markets are already pricing a further increase to around 4.35%, with the possibility of rates approaching 4.85% if inflation persists.

Market Implications: A Regime Shift in Progress

Stagflation changes how assets behave. The impact is uneven, and understanding that dispersion is critical.

In equities, growth and consumer discretionary sectors face the most pressure. Higher rates compress valuations, while weaker demand weighs on earnings. Energy and materials are holding up better, supported by commodity prices, while defensive sectors such as healthcare and utilities are attracting flows as investors prioritise stability.

In fixed income, the outlook is less predictable. The path of rates is uncertain, limiting the effectiveness of long-duration bonds as a hedge. Shorter-duration assets and inflation-linked securities are better positioned in an environment where inflation remains elevated and policy stays restrictive.

Commodities remain supported. Oil prices underpin energy producers, while gold continues to benefit from safe-haven demand. Infrastructure assets with inflation-linked revenues offer more stable real returns in an environment where inflation risk remains elevated.

Currency markets reflect the same tension. The Australian dollar is supported by higher rates but remains sensitive to global growth and China. In a risk-off environment, downside pressure on the currency can add to imported inflation, reinforcing the broader challenge.

What Tends to Work in Stagflation

Stagflation tends to reward a different set of characteristics than a typical growth-driven market. While each cycle has its nuances, history provides a consistent guide to what holds up and what comes under pressure.

Energy and commodities are the most reliable beneficiaries. When inflation is being driven by supply-side shocks, elevated input costs flow directly into higher commodity prices, supporting producers even as broader growth slows. Infrastructure and real assets also tend to perform more defensively, particularly where revenues are contractually linked to inflation. Assets such as toll roads, utilities and transport networks can maintain real returns in a way that more cyclical businesses cannot.

At the company level, pricing power becomes critical. Businesses that can pass rising costs through to customers without materially impacting demand are better positioned to protect margins. This typically favours companies with strong market positions, essential products or limited substitutes. Identifying these businesses becomes increasingly important in a stagflationary environment.

By contrast, high-growth equities are more exposed. Rising interest rates compress valuations, while weaker economic conditions challenge earnings expectations. Rate-sensitive and highly leveraged businesses also face headwinds, as higher borrowing costs coincide with a more difficult operating environment. In this setting, balance sheet strength and cash flow resilience become far more important than growth optionality.

Outlook: Navigating a More Difficult Macro Environment

The outlook is best described as uncertain, with a range of plausible outcomes rather than a single clear path. The base case is a period of below-trend growth and persistent inflation, with the Reserve Bank of Australia maintaining a restrictive stance for longer than previously expected.

Risks remain skewed to the downside. Further escalation in energy markets could intensify inflation pressures, while overtightening could push the economy into contraction. These risks are increasingly reflected in market pricing and policy communication.

Periods of volatility also create opportunity. Greater dispersion across sectors allows for more selective positioning, particularly in areas aligned with inflation and pricing power. Market dislocations can provide entry points that are not available in more stable conditions.

The broader shift is clear. Markets are moving away from the low-inflation, low-rate environment that defined the previous decade. Macro conditions are once again a primary driver of returns, and navigating this environment requires a greater focus on resilience, balance sheet strength and the ability to adapt to changing conditions.

Not sure how your portfolio is positioned? Speak to an adviser on positioning your investments through today’s market conditions.

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Disclaimer: This article does not constitute financial advice nor a recommendation to invest in the securities listed. The information presented is intended to be of a factual nature only. Past performance is not a reliable indicator of future performance. As always, do your own research and consider seeking financial, legal and taxation advice before investing.

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April 15, 2026
From Diplomacy to Disruption In geopolitics, sentiment can turn quickly when underlying tensions are unresolved. The collapse of recent United States and Iran negotiations was not a sudden reversal, but the inevitable outcome of positions that were never aligned despite a brief window of optimism. On 8 April, markets rallied on the announcement of a two-week ceasefire. Oil fell 16% in its largest one-day decline since the pandemic, the ASX rose 2.6%, and Qantas Airways Limited gained 9% as investors priced in easing risk. Within seventy-two hours, that optimism reversed. Talks collapsed after 21 hours in Islamabad, the United States imposed a naval blockade on Iranian ports, and markets repriced sharply. Oil moved back above US$104 per barrel, the Australian dollar weakened, and the Reserve Bank of Australia acknowledged rising stagflation risk. This was not a gradual deterioration but a rapid shift from diplomacy to enforcement. Markets had priced in peace, but what existed was only a temporary pause with no shared end state. The failure of talks did not create risk, it revealed it. The blockade represents a decisive escalation, but also a broader signal that economic coercion is once again a primary tool of statecraft. What the Talks Were Trying to Achieve Before examining why the Islamabad talks failed, it is necessary to understand the scale of what they were attempting to deliver. The negotiations aimed to establish a verified framework to constrain Iran’s nuclear programme in exchange for sanctions relief, effectively a successor to the agreement abandoned in 2018. Attempting to reach such an outcome during an active conflict, within a compressed timeframe, left limited room for compromise. The United States entered with clear non-negotiable demands. These included verifiable limits on uranium enrichment, dismantling advanced centrifuge infrastructure, removal of highly enriched uranium stockpiles, and cessation of funding for regional militant groups such as Hezbollah. Iran’s position moved in the opposite direction. Tehran sought full sanctions relief, recognition of its right to enrich uranium, security guarantees against future military action, compensation for war-related damage, and recognition of its influence over the Strait of Hormuz. Despite these differences, expectations remained cautiously constructive. Both sides faced genuine pressure. Iran’s oil revenues had been disrupted, while the United States was managing elevated fuel prices and domestic political sensitivity. Pakistan’s role as a neutral intermediary enabled both delegations to engage. The incentives to negotiate were present, but the underlying positions remained structurally incompatible. The Breakdown: Why Talks Collapsed The collapse of the talks was not a last-minute failure. The structural conditions required for agreement were absent from the outset, and the 21 hours of discussions confirmed this reality. Three fault lines defined the negotiations. The first was a deep trust deficit. Iran’s position was shaped by the 2018 withdrawal from the original agreement and the reimposition of sanctions despite prior compliance. From Tehran’s perspective, any new agreement carried a high risk of being abandoned. The United States viewed Iran’s continued enrichment activity as evidence of bad faith. Both positions were grounded in recent history, making compromise difficult. The second fault line was the absence of a credible enforcement framework. The United States required verifiable nuclear concessions before offering sanctions relief. Iran demanded sanctions relief as a precondition for any concessions. Both positions are internally consistent but incompatible. Without a trusted third-party verification mechanism, sequencing could not be resolved. The third was a mismatch in timelines and strategic priorities. The United States sought rapid, measurable outcomes. Iran’s position reflected a longer-term strategic approach in which its nuclear programme is tied to sovereignty and long-term security. These perspectives could not be reconciled within a compressed negotiation window. The breakdown reflected structural incompatibility rather than negotiation failure. The speed of escalation that followed highlighted how little room there was for delay. The Pivot: Why the United States Chose a Naval Blockade With diplomacy exhausted, the United States faced limited options. Accepting a nuclear-capable Iran with influence over a critical energy corridor was not politically viable. Resuming direct military strikes carried significant escalation and diplomatic risks. Economic pressure emerged as the most viable alternative, targeting Iran’s primary revenue source through oil exports. Iran’s oil sector generates approximately USD45 billion annually, or around 13% of GDP, with exports near 1.85 million barrels per day. Disrupting this flow applies direct economic pressure without the costs associated with military engagement. A naval blockade allows enforcement to take effect immediately through interception and rerouting of vessels. The blockade offers three advantages. It delivers immediate impact, carries lower political cost than military strikes, and provides flexibility. Enforcement can be scaled depending on Iran’s response, maintaining leverage. Its scope is also deliberate. The blockade targets Iranian ports while allowing freedom of navigation through the Strait of Hormuz for non-Iranian traffic. This approach aims to restrict Iranian exports without fully disrupting global energy flows. Its effectiveness depends on the compliance of third-party actors such as China, India and Russia, which remain the key variable in determining outcomes. The First 72 Hours: Theory Becoming Real-World Disruption The events following the collapse illustrate how quickly geopolitical decisions translate into economic outcomes. On 12 April, negotiations ended with conflicting statements and oil moved higher in after-hours trading. Within 48 hours, the blockade was implemented. Shipping routes were adjusted, insurance costs increased, and vessels carrying Iranian crude faced interception risk. Risk-sensitive currencies weakened, oil prices rose, and Asia-Pacific equities declined. By 14 April, the effects had extended into corporate earnings and sentiment. Qantas Airways Limited warned of up to AUD800 million in additional fuel costs. Westpac Banking Corporation and National Australia Bank flagged deteriorating credit conditions. Consumer sentiment declined sharply. The Reserve Bank of Australia warned of a potential stagflationary shock. These developments emerged within forty-eight hours of the blockade, demonstrating how quickly geopolitical risk now feeds through markets and the real economy. Market and Economic Implications: From Global Shock to Domestic Transmission At the global level, the brief removal of the risk premium during the ceasefire has fully reversed. The blockade directly threatens Iran’s oil exports, which were running at approximately 1.7 million barrels per day, tightening already constrained physical markets. Even where actual supply disruption remains contained, the reintroduction of uncertainty has been sufficient to drive price volatility. At the same time, freight and insurance markets are repricing risk across key shipping routes, with disruptions likely to persist well beyond any near-term diplomatic resolution. The situation also introduces new geopolitical flashpoints, particularly around enforcement, including the potential targeting of third-party vessels, which could materially escalate tensions. These global pressures are now transmitting directly into the Australian economy through multiple channels. The most immediate is fuel and inflation. Australia imports close to 90% of its refined fuel, making it highly exposed to sustained increases in oil prices. The cost pressures flagged by Qantas Airways Limited are indicative of a broader dynamic affecting transport, logistics and manufacturing. Persistently elevated oil prices are likely to flow through to headline inflation, complicating the policy outlook for the Reserve Bank of Australia. This feeds directly into interest rate expectations. Markets are increasingly pricing further tightening as the central bank balances rising inflation against slowing growth. The use of stagflationary language by policymakers signals a willingness to prioritise inflation control, even at the expense of economic momentum. At the corporate level, early warnings from institutions such as Westpac Banking Corporation and National Australia Bank point to rising credit stress and deteriorating business conditions as higher input costs and borrowing rates converge. Equity markets are already reflecting these shifts. The rotation observed during the ceasefire period has reversed, with energy producers benefiting from higher prices while banks and consumer-facing sectors come under renewed pressure. More broadly, the environment reinforces a defensive positioning bias, with dispersion increasing across sectors as investors respond to a combination of higher costs, tighter financial conditions and elevated geopolitical risk. Conclusion: A Shift from Hope to Reality The pace of this escalation is the defining feature. Markets moved from a ceasefire-driven rally to pricing an active naval blockade within seventy-two hours, while policymakers shifted from cautious optimism to openly discussing stagflation within the same week. What changed was not the underlying reality, but the market’s understanding of it. Diplomacy created hope, but the structural differences between the United States and Iran meant a durable agreement was never in place. The blockade is now the central fact shaping global energy markets and will remain so until one of three outcomes emerges: a credible return to negotiations, economic pressure forcing Iranian concessions, or escalation into a broader conflict. In the meantime, the reintroduction of a sustained geopolitical risk premium is already feeding through commodities, trade flows, monetary policy expectations and corporate earnings. For Australian investors, the implication is clear. 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