Including definitions of key terms and concepts in Economics Optional answers is highly recommended. Here's why:

1. Demonstrates knowledge:
Including definitions in your answers shows that you have a solid understanding of the subject matter. It demonstrates your ability to define and explain key terms and concepts accurately, which is essential in Economics Optional exams.

2. Clarifies understanding:
Definitions help provide clarity and ensure that your answers are well-understood by the examiner. By clearly defining key terms and concepts, you eliminate any ambiguity or confusion that may arise. This helps the examiner follow your line of reasoning and evaluate your response more effectively.

3. Shows depth of comprehension:
Including definitions also allows you to showcase your depth of comprehension. It enables you to go beyond just providing a superficial answer and delve into the intricacies of the topic. By providing clear definitions, you demonstrate your ability to analyze and critically evaluate the subject matter.

4. Enhances readability:
Including definitions in your answers enhances the readability of your response. It breaks down complex ideas into simpler terms, making it easier for the examiner to grasp your arguments. This can greatly improve the overall coherence and structure of your answer.

5. Provides context:
Definitions provide a context for the key terms and concepts you are discussing in your answer. They set the foundation for your arguments and enable the examiner to understand the relevance and significance of your analysis. This helps you establish a logical flow in your response.

In conclusion, including definitions of key terms and concepts in Economics Optional answers is crucial. It showcases your knowledge, clarifies your understanding, demonstrates your depth of comprehension, enhances readability, and provides context for your arguments. By incorporating definitions effectively, you can significantly improve the quality of your answers and increase your chances of scoring well in the UPSC Economics Optional exams.