The average of Laspeyre’s and Paasche’s Price Index Numbers is called……………..Price Index Number.

Answer

To solve the question regarding the average of Laspeyre’s and Paasche’s Price Index Numbers, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Price Index Numbers**:
- Laspeyre’s Price Index Number (denoted as \( P_0^L \)) is calculated based on the base year quantities.
- Paasche’s Price Index Number (denoted as \( P_0^P \)) is calculated based on the current year quantities.

2. **Calculate the Average**:
- The average of Laspeyre’s and Paasche’s Price Index Numbers is calculated using the formula:
\[ \text{Average Price Index} = \frac{P_0^L + P_0^P}{2} \]

3. **Identify the Type of Average**:
- The average calculated above is known as the **Drobish-Bauli Price Index Number** (denoted as \( P_0^{DBK} \)).
- Therefore, the average of Laspeyre’s and Paasche’s Price Index Numbers is referred to as the Drobish-Bauli Price Index Number.

4. **Final Answer**:
- The fill-in-the-blank answer is **Drobish-Bauli**.