20 curated questions
Start with the question you cannot stop asking.
Each answer begins with one sentence, then reveals the causal chain, concepts, evidence and limits beneath it.
Does peace require everyone to want peace?
No. Wanting war and choosing war are different things. Rules, defensive capability, information, and credible collective commitments can make aggression costlier and less likely to succeed, so even a hostile actor may prefer restraint or bargaining. But deterrence is conditional: threats that lack credibility may fail, while threatening preparations can make opponents feel less safe and produce escalation instead.
money - 5 minWhy does the dollar dominate the world?
US economic scale, legal and institutional credibility, open capital markets, and the supply of Treasury securities created a strong foundation. On top of it, a coordination loop developed: firms invoice in dollars because suppliers, customers, banks, and hedging markets already use dollars; that use deepens dollar funding and asset markets, making the next dollar transaction cheaper and safer. The loop is powerful, but it is conditional rather than permanent.
money - 5 minWhat really causes inflation?
Sustained inflation can emerge when total spending outruns productive capacity, when supply or energy shocks raise costs, and when wages, prices and expectations propagate the initial shock. The mix changes across episodes.
money - 5 minWhy does raising interest rates tend to reduce inflation?
Higher policy rates feed into borrowing costs, saving returns, asset prices, exchange rates and credit supply. Spending and investment tend to weaken, easing demand pressure - but with long, variable and uncertain lags.
trade - 5 minWho really pays a tariff?
Customs collects the tariff from the importer, but the final burden can be split among foreign producers, importing firms, downstream businesses and consumers depending on bargaining power, substitution and market structure.
energy - 5 minWhy does the Strait of Hormuz matter so much to the world economy?
Hormuz concentrates a large share of globally traded oil and LNG in a route with limited bypass capacity. A disruption changes expected availability, freight and insurance costs, so global prices can move even for countries buying elsewhere.
energy - 5 minWhy did Europe depend so heavily on Russian gas?
Nearby pipeline gas was commercially attractive and became embedded in power, heating, industry, long-term contracts and infrastructure. Replacing it required scarce LNG, terminals, interconnectors, storage and demand reduction - not just a different seller.
technology - 5 minWhy did semiconductors become a national security issue?
Advanced chips and manufacturing tools enable AI, communications and weapons, while production depends on a specialised, concentrated chain. Governments therefore treat access, denial and domestic capacity as security instruments.
technology - 5 minWhy does Taiwan matter so much to the world economy?
Taiwan hosts exceptional semiconductor fabrication and advanced-packaging capacity, including much of TSMC's leading-edge investment. Because chips feed products from phones to data centres, disruption would propagate through global production.
markets - 5 minWhy does a bond's price fall when interest rates rise?
A fixed-rate bond keeps promising the same cash flows. When new bonds offer higher yields, investors will buy the old bond only at a lower price that makes its unchanged payments competitive.
markets - 5 minWhat are futures, and why do they matter even if you don't invest?
A futures contract standardises a price for a later transaction. Producers and users hedge uncertain prices, while trading helps form benchmarks that influence physical contracts, planning, inventories and eventually the prices households face.
everyday life - 5 minWhy did housing become so expensive?
In high-demand places, incomes, credit and population can raise what buyers can bid faster than zoning, permits, construction, land and infrastructure add homes. Tax incentives and investor demand can amplify the gap, but the mix is local.
money - 5 minWhy is oil priced in dollars?
Oil is usually quoted and traded in dollars because the dollar is already the common currency of global trade and finance. Dollar funding, benchmarks, derivatives and liquid assets reinforce that choice. It is a durable convention, not a universal legal rule.
trade - 5 minHow can a ship stuck far away raise prices here?
A blocked chokepoint delays many ships, not just one. Rerouting consumes time, fuel, vessels and containers. Freight and insurance costs rise, inventories arrive later, and firms facing scarce inputs may cut output or pass part of the cost into prices.
power - 5 minHow do international sanctions work?
Sanctions work by making selected trade, finance, technology or travel illegal for people under the sender's jurisdiction. Their reach grows when banks and firms need access to the sender's currency and markets. Pressure can be large without guaranteeing political compliance.
money - 5 minWhy can the United States sustain such a large public debt?
The United States borrows in its own currency, has a large tax base and issues the world's deepest pool of liquid government securities. That creates exceptional demand and refinancing capacity, but not unlimited fiscal space: interest costs, inflation, politics and confidence still constrain it.
energy - 5 minWhy can energy prices affect almost everything else?
Energy powers transport, heating, machinery and many industrial processes. A price shock therefore raises direct household bills and the cost of producing and moving other goods. The final effect depends on energy intensity, contracts, substitution and how wages and expectations respond.
trade - 5 minWhy do countries trade instead of producing everything themselves?
Countries gain by specialising where their relative opportunity cost is lower and exchanging for the rest. Scale, variety and access to resources add further gains. But aggregate gains do not ensure that every worker, region or strategic sector benefits.
everyday life - 5 minWhy are wages so different between countries?
Wages depend not only on individual effort or skill but also on the value workers can produce with local technology, capital and infrastructure, plus labour demand, bargaining institutions and alternative jobs. Exchange rates and prices also change how international comparisons look.
everyday life - 5 minWhy does raising interest rates affect mortgages?
Central banks set a short-term policy rate, not each mortgage. That decision changes market yields, bank funding, expectations and credit demand. Variable mortgages can reset quickly; fixed mortgage rates reflect longer-term yields and may move before or differently from the policy rate.