The three types of movements or flows within the international economic exchange are trade flows, human capital flows and capital flows or investments. These can be explained as—the trade in agricultural products, migration of labour, and financial loans to and from other nations.
India was a hub of trade in the pre-modern world, and it exported textiles and spices in return for gold and silver from Europe. Many different foods such as potatoes, soya, groundnuts, maize, tomatoes, chillies and sweet potatoes came to India from the Americas after Columbus discovered it.
In the field of labour, indentured labour was provided for mines, plantations and factories abroad, in huge numbers, in the nineteenth century. This was an instrument of colonial domination by the British.
Lastly, Britain took generous loans from USA to finance the World War. Since India was an English colony, the impact of these loan debts was felt in India too. The British government increased taxes, interest rates, and lowered the prices of products it bought from the colony. Indirectly, but strongly, this affected the Indian economy and people.