Geopolitics and Markets
A war thousands of kilometres away can still make petrol more expensive at a pump in Jurong, and understanding how political events travel through global markets to touch your everyday life is what separates a reactive investor from one who sees risk coming.
How political events move markets
Markets are, at their core, a giant pricing machine for future expectations, and few things shift expectations faster than politics. A trade war — when countries impose tariffs (taxes on imported goods) or other barriers against each other, as the US and China have done repeatedly since 2018 — raises costs for companies that rely on cross-border supply chains and can shrink profit margins overnight. Sanctions — restrictions a government places on trade or financial dealings with another country, company, or individual — can cut a company or country off from global markets entirely, as happened to major Russian banks and companies after 2022. Elections move markets because they change expectations about future tax policy, regulation, and government spending; markets often react within hours of a surprising result, repricing entire sectors that a new government is expected to help or hurt.
The petrodollar and energy prices
Oil is priced and traded globally almost entirely in US dollars, a system often referred to as the petrodollar arrangement, which took shape after the US and Saudi Arabia struck an understanding in the 1970s. This matters for two reasons. First, it means oil prices and the strength of the US dollar are deeply intertwined — a stronger dollar can make oil more expensive for countries using other currencies, since they need more of their own currency to buy the same dollar-priced barrel. Second, energy is a foundational input cost across the entire economy — it powers transport, manufacturing, and electricity generation — so a spike in oil or gas prices, whether from conflict, sanctions, or a supply disruption, pushes up costs everywhere at once and is one of the most common triggers of inflation shocks (as you saw in Lesson 5.2).
Safe-haven assets: why gold and the dollar rise in crises
When geopolitical shocks hit, investors often rush toward safe-haven assets — investments expected to hold or gain value when everything else is falling. Gold is the classic example: it's physical, finite, universally recognised, and isn't a promise from any single government or company, so it tends to hold its value even if a currency or a country's financial system comes under stress. The US dollar is, somewhat paradoxically, also considered a safe haven even though the US itself can be a source of political uncertainty — this is because the dollar is the world's dominant reserve currency, used to settle a huge share of global trade and debt, so in a crisis, global demand for dollars actually rises as investors and institutions everywhere seek the most liquid, widely accepted asset available. This "flight to safety" is a recurring pattern: watch gold prices and the US dollar during any major geopolitical shock, and you'll usually see both climb while riskier assets like stocks in the affected region fall.
Supply chain disruptions as investment risk
Modern companies rarely make everything themselves — they rely on global supply chains, networks of suppliers spread across many countries, each providing a component, material, or service. This efficiency comes with a hidden fragility: a single disruption anywhere in the chain — a blocked shipping lane, a factory shutdown, an export ban on a critical material — can halt production thousands of kilometres away. The Covid-19 pandemic exposed this vividly, with a global shortage of semiconductor chips delaying car and electronics production for years afterward. Investors increasingly treat supply chain concentration — relying too heavily on one country or one supplier for a critical input — as a specific risk factor to check for when evaluating a company, alongside the more traditional financial metrics you'll learn in Unit 6.
Case study: the Russia-Ukraine war and European energy
When Russia invaded Ukraine in February 2022, Europe was heavily dependent on Russian natural gas, which supplied a large share of the continent's heating, electricity generation, and industrial energy needs. As the war escalated, Russian gas flows to Europe were cut sharply — partly through Western sanctions and partly through Russia's own supply reductions — and European natural gas prices spiked to many multiples of their pre-war levels within months. This fed directly into a broader European inflation surge, squeezed household budgets, forced some energy-intensive manufacturers to cut production, and pushed European governments to scramble for alternative gas supplies (importing far more liquefied natural gas by ship from the US and Qatar) and accelerate investment in renewable energy. It's a clean, real-world illustration of the whole chain covered in this lesson: a political and military event → a supply shock in a critical commodity → an inflation and growth shock across an entire region → shifts in company profits and government policy that investors had to price in almost in real time.
Why might a Singapore-based company be affected by a US-China trade war even if it sells only in Southeast Asia?
Reveal Answer
Because global supply chains connect economies regardless of where a company's end customers are. A Singapore-based company may source raw materials, components, or manufacturing equipment from Chinese or American suppliers, so tariffs between the US and China can raise its input costs even though it never sells a single product in either country. It could also be indirectly affected if its own regional customers — say, a Southeast Asian manufacturer that exports finished goods to the US or China — see their business shrink because of the tariffs, reducing demand for the Singapore company's products further up the supply chain. Additionally, as a small, extremely trade-dependent economy (recall Lesson 5.1), Singapore as a whole tends to feel slowdowns in major global trade flows quickly, which can dampen the broader business environment the company operates in even without any direct link to the US or China.