The Transitional Middle Ages were a period of foreign trade and economic expansion, though its trends can be seen as a continuation of previous ones. A few particularities arose, however.
- Most city-states and statelets, especially following Alfonso de Albuquerque's Expedition, began implementing protectionist economic policies, limiting the imports of foreign manufactured goods. Enormous sums of money from public treasuries were spent in developing native manufacturing, especially in the arms industry (manufacturing arquebuses, cannons and gunpowder is a laborious process which requires a great degree of infrastructure and access to raw resources which are not always together, necessitating developed trade routes). Other industries which saw significant investments were shipbuilding, metallurgy and textiles (particularly Southern Velvet, a very sought-after type of fabric worldwide).
- Thanks to cultural and technological exchange with the East Asian world, utilities such as paper, gunpowder and the compass became available in Oceanyka, helping numerous industries develop. Trade routes to these states became more developed and even financial culture was affected; Oceanykan low-value mint from this era largely resembled Chinese qián (round copper coinage with an empty square hole to put a string through it). Another aspect in which Asia influenced Oceanyka was in the rise of guilds, enormously powerful proto-corporations made up of craftsmen of a certain trade or merchants of a certain type.
Increasing economic expansion and the threat of European commercial colonialism were some of the main characteristics of the Economy of Late Middle Age Oceanyka.