IB Geography HL — Global networks and flows

Key Idea: Topic 4.2 is about the flows and networks that bind distant places together in a globalized world. It pulls together two micros: 4.2.1 — trade, finance & TNCs: the economic flows — trade in goods and services, financial flows (FDI, aid, loans including South-South / Belt-and-Road, remittances), and the transnational corporations (TNCs) that organise much of this through supply chains, flows of money and profit, and the diffusion of branded ideas. States raise or restrict these flows; firms increasingly publish responsible-production strategies. 4.2.2 — digital networks: how ICT drives time-space convergence, so data, finance and communication move online almost instantly — while energy, food and raw materials stay physical. Access is uneven (the digital divide), and the same networks carry illicit flows whose data is unreliable yet still worth measuring. This is HL-core content, examined on Paper 3 — synoptic two-part questions: a [12] structured part (Analyse / Examine) plus a [16] markband evaluative essay rewarding named cases, a real counter, synoptic links across Units 4-6, and a clear judgement.

🌐 4.2.1 — Trade, finance & TNCs

No place is self-contained. Economic flows stitch distant places together: trade moves goods and services, financial flows move capital, and TNCs organise the system across many countries at once. The skill examiners test is to think in flows and networks — say what moves where (parts, money, ideas) — and to bring in the concepts of place and scale when you trace a named TNC or financial flow.

Tip: It is not enough to say a TNC operates in many countries. Say what flows where — chips from Taiwan, assembly in India, profit back to California. Each named link is a mark; each one tied to place or scale lifts you into the top band.

📡 4.2.2 — Digital networks & interconnection

ICT — the internet, mobile networks, satellites and undersea cables — has driven time-space convergence: the friction of distance shrinks, so distant places feel close in time and cost. Data, finance and communication now move online almost instantly. But the shift is partial. Energy, food and raw materials must stay physical, digital networks often coordinate physical flows rather than replacing them, access is uneven (the digital divide), and the same networks carry illicit flows whose data is unreliable.

The strongest line is that digital and physical flows work together. The internet plans, prices and tracks the shipment, but the steel and the soybeans still move by sea. Qualify any 'flows have moved online' claim with the digital divide (uneven access) and the unreliability of illicit-flow data — what is unmeasured goes ungoverned.

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