What graphical tools represent global trade networks?

Global trade networks can be represented using tools such as flow maps, network diagrams, and geographic information system (GIS) maps.

Flow maps are a type of thematic map used in cartography to represent the movement of objects between different areas. In the context of global trade, these objects could be goods, services, or even people. The lines on a flow map typically vary in width to represent the volume of trade between different regions. For example, a thicker line might indicate a higher volume of trade. This allows for a visual representation of trade patterns and volumes, making it easier to understand the global trade network.

Network diagrams are another tool that can be used to represent global trade networks. These diagrams show nodes and links, where nodes represent countries or regions, and links represent trade relationships. The strength of the trade relationship can be represented by the thickness or colour of the links. Network diagrams can be particularly useful for visualising complex relationships and interdependencies within the global trade network.

Geographic Information System (GIS) maps are another powerful tool for representing global trade networks. GIS is a framework for gathering, managing, and analysing data, which is rooted in the science of geography. It analyses spatial location and organises layers of information into visualisations using maps and 3D scenes. In the context of global trade, GIS can be used to map the physical routes of trade, such as shipping lanes and trade corridors. This can provide a detailed understanding of how goods and services move around the world.

In conclusion, flow maps, network diagrams, and GIS maps are all graphical tools that can be used to represent global trade networks. Each of these tools provides a different perspective on the global trade network, and can be used to analyse different aspects of global trade.