Introduction:
The UPSC interview for economics is designed to assess the candidate's knowledge, understanding, and analytical ability in the field of economics. The questions in the interview can cover a wide range of topics, including macroeconomics, microeconomics, international economics, public finance, monetary economics, development economics, and economic policies. Here are some examples of the kind of questions one can expect in the UPSC interview related to economics:

1. Macroeconomics:
- Explain the concept of Gross Domestic Product (GDP) and its significance in measuring a country's economic performance.
- Discuss the various tools and techniques used by the government to control inflation in an economy.
- Describe the relationship between fiscal deficit and economic growth.

2. Microeconomics:
- Define the concept of price elasticity of demand and explain its importance in decision-making by firms.
- Discuss the factors that determine the market equilibrium in a perfectly competitive market.
- Explain the concept of consumer surplus and producer surplus.

3. International Economics:
- Analyze the impacts of globalization on developing economies.
- Discuss the pros and cons of free trade and protectionism.
- Explain the concept of balance of payments and its components.

4. Public Finance:
- Discuss the principles of taxation and their relevance in designing an efficient tax system.
- Analyze the role of government in promoting economic growth and development.
- Explain the concept of public goods and discuss the challenges in their provision.

5. Monetary Economics:
- Explain the functions and objectives of a central bank.
- Discuss the tools used by the central bank to control money supply and manage inflation.
- Analyze the relationship between interest rates, investment, and economic growth.

6. Development Economics:
- Discuss the theories of economic development and their relevance in understanding the growth patterns of different countries.
- Analyze the role of foreign aid in promoting economic development.
- Explain the concept of sustainable development and its challenges.

7. Economic Policies:
- Analyze the impact of fiscal policy on economic growth and inflation.
- Discuss the role of monetary policy in stabilizing an economy.
- Explain the concept of economic reforms and their significance in promoting economic growth.

Conclusion:
The UPSC interview for economics is designed to assess the candidate's understanding of various economic concepts, their ability to analyze economic issues, and their knowledge of economic policies. It is important to have a strong foundation in economics and be well-prepared to answer questions that cover a wide range of topics.