Final answer:
A trade surplus occurs when more money flows into an economy than out.
Step-by-step explanation:
When more money is flowing into an economy than out, it is known as a trade surplus. A trade surplus occurs when a country's exports exceed its imports, resulting in a net inflow of financial capital.
For example, if a country exports more goods and services than it imports, it will receive payments from other countries, which increases its financial capital. This surplus of money can be used for investment or savings within the country.
The primary topic of this question is trade surpluses, which is a concept in economics that relates to the flow of money into and out of an economy.