Step 1: Understand the context of the question
The question is about the foreign exchange market, specifically regarding the USD/JPY currency pair.

Step 2: Recall the definition of a basis point (or pip) in forex
In the foreign exchange market, a basis point, often referred to as a pip, is the smallest unit of price movement for a currency pair.

Step 3: Identify the typical pip value for major currency pairs
For most currency pairs, a pip is equivalent to 0.0001、However, the value of a pip can differ for currency pairs involving the Japanese yen.

Step 4: Recognize the exception for currency pairs involving the Japanese yen
Currency pairs involving the Japanese yen, such as USD/JPY, are typically quoted to two decimal places instead of four、Therefore, for USD/JPY, one pip is 0.01.

Step 5: Relate the definition of a pip to the USD/JPY currency pair
Given that USD/JPY is quoted to two decimal places, a movement of one pip in USD/JPY equals 0.01.

The final answer is: $\boxed{0.01}$