The study of broad economic aggregates is

1. Analyze the question The question asks for the name of the branch of economics that studies "broad economic aggregates." The key phrase is aggregates, meaning totals or large combined quantities for the whole economy.

2. Explain the concept Economics is divided into two main branches:

• Microeconomics studies individual units such as a single consumer, a household, a firm, or one market. Examples are the price of garri, a firm's output, and the demand for a product.
• Macroeconomics studies the economy as a whole, using broad aggregates such as national income (GDP), the general price level (inflation), total employment and unemployment, money supply, and the balance of payments.

The deductive and inductive methods are not branches of economics. They are methods of reasoning used in economic analysis:

• Deductive method: reasoning from general principles to specific conclusions.
• Inductive method: reasoning from specific observations to general conclusions.

3. Solution

• Option A, Macroeconomics: it deals with aggregates such as GDP, inflation, and total employment. ✔
• Option B, Deductive method: a method of reasoning, not a field of study. ✘
• Option C, Microeconomics: it deals with individual units, not aggregates. ✘
• Option D, Inductive method: a method of reasoning, not a field of study. ✘

4. Answer The study of broad economic aggregates is Macroeconomics, which is option A.

5. Exam tip Remember the Greek roots: macro means "large" and micro means "small." If a question mentions the whole economy, national totals, or aggregates (GDP, inflation, national income), think macro. If it mentions a single consumer, firm, or market, think micro.