US strikes Iranian tankers, India fills Europe's diesel gap, and foreign money keeps leaving Indian equities

This sits squarely in the Global Politics unit on sovereignty, intervention, and the use of force, but it also connects directly to Economics HL's treatment of supply shocks. On the economics side, a military confrontation at Hormuz is a textbook negative supply shock to the global oil market: if the threat of disruption reduces the quantity of oil available at any given price, the supply curve for crude shifts left, pushing the equilibrium price up. You would draw a standard supply-and-demand diagram for crude oil, shift S leftward, and show the new higher equilibrium price — then note that because price elasticity of demand (PED) for oil is low in the short run (economies cannot quickly switch away from oil), the price rise is large relative to the quantity fall. That is why even the *threat* of Hormuz disruption moves markets.

The counter-argument a good candidate raises is that markets have seen Hormuz scares before — in 2019, in 2024 — and full blockades have never materialised, so there is a 'cry wolf' effect that limits how far the risk premium goes. The short-run/long-run distinction matters too: in the long run, higher prices incentivise alternative supply (US shale, renewables) and demand destruction, so the shock is self-limiting. For India specifically, the rupee tends to depreciate when oil spikes because India's import bill rises faster than its export revenues, widening the current account deficit — the RBI may then intervene in FX markets or delay rate cuts to defend the currency. This story is directly usable as a Paper 1 (HL) example of a supply shock and its macroeconomic transmission, or as a Global Politics IA article on the use of force and freedom of navigation. The reflective question worth sitting with: if both sides claim the other fired first, how do we — as analysts, not just as citizens — decide whose account of the 'trigger' to use when we model the causal chain?

This story fits Economics HL's international trade unit, specifically the section on comparative advantage and how trade patterns shift when relative costs change. India does not have a natural comparative advantage in refining over, say, the Netherlands — but it has acquired a cost advantage by accessing discounted Russian crude that European refiners cannot (or will not) buy under sanctions. That is not the static Ricardian model of comparative advantage based on factor endowments; it is a dynamic, policy-shaped advantage. You would explain this by noting that the opportunity cost of producing a barrel of refined diesel is lower for Indian refiners right now because their input cost (crude) is artificially reduced by the sanctions discount. The result is a trade flow that looks, on the surface, like India exploiting comparative advantage — but is actually driven by a third-country sanctions regime.

The evaluation point is important: this advantage is fragile. If the Russia–Ukraine conflict ends and Russian diesel re-enters European markets, or if Western governments pressure India more forcefully to stop buying Russian crude, the cost advantage disappears quickly. There is also a terms of trade risk on the other side: if Hormuz tensions (Story 1) push up the price of non-Russian crude, India's import bill for the crude it *does* buy on open markets rises, partially offsetting the refining margin gain. For India's macroeconomy, the net effect on the current account depends on whether the value of refined product exports grows faster than the crude import bill — the figures we have only cover the directional shift in flows, not the rupee value, so we cannot be precise here. This is a strong Economics HL Paper 2 example on trade patterns and comparative advantage, and a potential IA article given the concrete, recent data. Worth asking: does a trade advantage built on another country's sanctions constitute genuine development of productive capacity, or is it a windfall that crowds out pressure to invest in cleaner energy?

This is a clean application of Economics HL's exchange rate and capital flows material, and it also connects to the monetary policy unit. The mechanism here is interest rate parity — the idea that capital flows between countries until the returns on comparable assets are equalised (adjusted for expected exchange rate movements). When US Treasury yields rise, the return on dollar assets goes up; to attract capital back, Indian assets would need to offer higher returns too, which means either Indian yields rise (bond prices fall) or the rupee depreciates to make Indian assets cheaper for foreign buyers. In practice, both happen to some degree. You would draw this as a foreign exchange market diagram for the rupee/dollar: increased supply of rupees (as FPIs sell Indian assets and buy dollars) shifts the supply curve right, pushing the equilibrium exchange rate down — the rupee depreciates.

The evaluation a good candidate raises is that FPI flows are notoriously volatile and one week of data is thin evidence for a trend — the figures we have cover only the first week of September, so this could easily reverse. The more structural question is whether India's domestic institutional investors (DIIs, including mutual funds) can absorb the selling, which they have done in previous episodes of FPI outflow. There is also a J-curve consideration: a weaker rupee makes Indian exports cheaper in dollar terms, which could eventually improve the trade balance, but the import bill (especially oil) worsens first. This story is directly usable as a Paper 1 or Paper 2 example on exchange rate determination and the macroeconomic effects of capital flows, and it connects to the global bond sell-off thread that has been running through this briefing. The question worth holding onto: if the RBI cuts rates to support growth but that accelerates FPI outflows and weakens the rupee, which objective should take priority — and who decides?