Understanding of basic world economic theory can help you in forex trading. The relative values of currencies around the world in relation to one another change because of a host of economic factors. Some of the factors include:
1. Changes in a country's central bank interest rate.
2. Government and consumer spending
3. Government and consumer debt
4. Gross Domestic Product & Consumer Price Index
5. Money supply and demand for a currency

Economic knowledge is an advantage rather than a necessity in forex trading. Learning how interest rates, inflation, and government policies affect currencies provides useful insight into market trends. Combined with technical analysis, disciplined execution, and sound risk management, this knowledge supports more consistent and informed trading decisions.