Multiple subject areas searched simultaneously.
When searching for a broad topic such as GLOBALIZATION your database and internet searches can be strengthened by combining terms that stand in for the main topic (GLOBALIZATION) and your sub-topic (in this case ECONOMY). Since you may be researching for something even more specific you may choose to replace the sub-topic (ECONOMY) with one of your specific topic terms or simply add it onto your search string (particularly useful if you have gotten way too many results).
Keyword suggestions for A Globalized Economy:
GLOBALIZATION: globalization, international, world, global
ECONOMY: economy, trade, wealth, business, industry, market, enterprise