Midterm eve jitters, an Australian rate shock, and a Saudi oil windfall

The RBA's fifth hike is a live demonstration of what the IB syllabus calls contractionary monetary policy, where a central bank raises the price of borrowing to reduce spending across the economy. The mechanism runs like this: a higher cash rate means commercial banks charge more for mortgages and business loans, so households spend less and firms invest less, so demand falls, so firms have less power to raise prices. The RBA is betting that squeezing demand now will bring inflation back to its 2-3% target band before expectations, what people think prices will do next year, become permanently higher.

The honest complication is timing. Rate rises work with a lag of roughly 12 to 18 months, so the five hikes already delivered this year have not yet fully fed through to prices or spending. The RBA may be tightening into a slowdown it has already caused but cannot yet see in the data. Australia's situation also has a specific feature that makes transmission faster than in most countries: a large share of mortgages are variable-rate, meaning repayments rise almost immediately when the cash rate does. That is why families are cutting food spending now, not in 18 months. Whether that speed is a feature or a bug depends on whether the RBA is right that inflation is still the bigger threat.

Markets are pricing in political risk before the votes are counted, which is a good illustration of how forward-looking expectations work in financial markets. Investors do not wait for a policy to pass; they buy or sell assets the moment they update their view of what is likely to happen. If traders believe a Democratic Congress will block further tax cuts, they sell dollars now, because fewer tax cuts mean less fiscal stimulus, which means less upward pressure on US interest rates, which makes dollar assets relatively less attractive. The price move happens before the policy does.

The precedent worth thinking about is the 2018 midterms, when Democrats took the House and markets initially sold off before recovering. The parallel holds in one way: divided government tends to reduce the chance of large fiscal swings in either direction, which can calm bond markets. Where it breaks down is that the 2026 context is different: inflation is still elevated, the Fed is still tightening, and the deficit is already large. A Congress that blocks spending cuts could keep yields higher for longer, which is the scenario bond investors are most nervous about. One month of pre-election positioning is not proof of where yields end up; the direction depends on which party wins and by how much.

Aramco's numbers are a striking illustration of how a supply shock, a sudden reduction in how much of a good can be produced or delivered, can raise prices enough to make the remaining producer better off even while producing less. Normally, selling less means earning less. But when supply falls across the whole market and demand stays roughly the same, the price rises sharply, and a producer with a large enough share of the market can end up with higher revenues on lower volume. That is what the data shows here: attacks cut output, but the resulting price spike more than compensated.

The geopolitical layer matters for how long this lasts. Netanyahu pressing the US for Iran strikes while talks are simultaneously progressing is exactly the kind of ambiguity that keeps a risk premium baked into the oil price. If talks succeed and the threat of a wider conflict recedes, the premium deflates and prices fall, which would hurt Aramco's next set of results but give relief to importers. If talks collapse and strikes happen, supply could fall further and prices spike again. India sits squarely in the middle of that uncertainty: BPCL buying a million barrels of US crude this week is one sign that Indian refiners are already diversifying away from Gulf supply, which is a sensible hedge but not a complete one given the scale of India's import needs.

The concept doing the work here is the difference between tariff barriers, the taxes charged on goods at a border, and non-tariff barriers, the rules, standards and inspections that add cost without being a tax. IB trade theory focuses heavily on tariffs, but in modern trade agreements the non-tariff barriers are often the harder problem. A tariff is a number you can negotiate down. A non-tariff barrier is a whole system of rules, labs, certifications and border posts, and aligning two countries' systems takes years of technical work. The UK-EU food deal is essentially an agreement to treat British food standards as equivalent to EU ones, so the checks become unnecessary.

The obvious pushback is that this is a draft, not a done deal, and the summit has not happened yet. That is half right. But the direction of travel matters: each concrete agreement makes the next one easier, because it builds the political trust and the institutional machinery needed for deeper integration. The precedent that fits is the EU-Switzerland relationship, where a series of bilateral agreements gradually deepened market access without full membership. That process took decades and repeatedly stalled over sovereignty questions. The UK faces the same tension: closer trade ties require accepting more EU rules, and every step in that direction is politically contested at home. This deal is real progress, but it explains why the agreement was signed, not whether the broader reset will hold.