The maritime economy is no longer only about ships and ports. It is the economic system built around oceans, coasts, shipping lanes, ports, fisheries, offshore energy, shipbuilding, marine tourism, maritime finance, naval logistics, and increasingly offshore wind, seabed cables, marine data, and blue carbon. The OECD defines the ocean economy as activities that take place on the ocean, depend on ocean resources, or benefit from proximity to the sea. In practical terms, this includes both traditional sectors such as shipping, fishing and offshore oil, and emerging sectors such as offshore renewables, ocean monitoring, marine biotechnology and digital maritime services. Globally, the maritime economy is strategically important because it connects trade, food, energy and security. Around 80% of global trade by volume moves by sea, and maritime chokepoints such as the Strait of Hormuz, Suez Canal, Bab el-Mandeb and Malacca Strait can influence inflation, energy prices and supply-chain stability. During wars and conflicts, maritime industries are often among the first to feel pressure: freight rates rise, insurance premiums increase, shipping routes shift, naval security becomes costlier and ports face uncertainty. No single country leads every dimension of the maritime economy. Instead, leadership is distributed. This Tatvita Country Column explains the global maritime economy, comparing China, the United States, Norway, South Korea, Japan, and Greece across shipping, shipbuilding, ocean GDP, sustainable governance, jobs, ports, and conflict resilience. China leads in scale; the United States leads in ocean GDP value; Norway offers a best-practice model in sustainable ocean governance; South Korea and Japan […]