Plain-language explanation.
International political economy (IPE) examines how politics and economics interact at the global level. How does the world economy work? Why are some countries rich and others poor? Who benefits from globalisation? IPE theories — mercantilism, liberalism, structuralism — offer competing answers with radically different policy implications for development, trade, aid, and debt.
Core concepts and standard treatment.
IPE theoretical frameworks: mercantilism/economic nationalism (state manages economy to maximise national power — industrial policy, trade protection, strategic sectors); liberalism/economic liberalism (free trade, comparative advantage, international institutions reduce transaction costs — Heckscher-Ohlin-Samuelson factor price equalisation, Ricardo); and structuralism/neo-Marxism (dependency theory — core exploits periphery through unequal exchange; Wallerstein's world-systems theory — core, semi-periphery, periphery in the capitalist world-system; development blocked by structural position, not policy failures). Hegemonic stability theory (Kindleberger, Gilpin): a dominant hegemon provides global public goods (reserve currency, open markets, security) — Britain in the 19th century, the US since 1945; what happens when hegemony declines?
Deeper theory, debates and edge cases.
Development theory and practice: modernisation theory (Rostow's stages of economic growth — traditional, preconditions, take-off, maturity, mass consumption; Western model as universal path); structural adjustment and Washington Consensus (1990s IMF/World Bank conditionality — fiscal austerity, privatisation, trade liberalisation; critique: social costs and policy space reduction); post-Washington consensus and capabilities approach (Sen: development as freedom — human capabilities not just GDP; Nussbaum's capability list). Aid effectiveness debate: Sachs (big push, aid can end extreme poverty); Easterly (aid undermines institutions, creates dependency — planners vs. searchers); Moyo (Dead Aid — aid kills African private sector, promotes corruption); and randomista revolution (Banerjee, Duflo, Kremer — RCTs to test what development interventions actually work).
How it is applied in practice.
Contemporary development challenges: debt trap diplomacy debate — Chinese lending through Belt and Road Initiative; HIPC and MDRI (Heavily Indebted Poor Countries debt relief initiatives); the debt crisis in Global South after COVID-19 and high interest rates. Global value chains (GVCs): fragmentation of production across countries (Apple assembles in China, designs in US, sources components across Asia); "smile curve" of value (design and branding capture more than assembly); upgrading challenges for developing country firms. Climate and development: loss and damage (vulnerable countries suffering costs of climate change they did not cause); just transition finance; and the tension between development needs and climate commitments. The SDGs (Sustainable Development Goals): 17 goals, 169 targets, agreed 2015; measurement challenges; financing gaps; and the political economy of who sets the development agenda.