Answer: value
Explanation:
From the question, we are informed that Gen-Fast Shoes wants to expand internationally and is deciding if its line of tennis shoes can be sold at a high price in Europe.
One way for Gen-Fast Shoes to assess this is to determine whether these types of shoes in the foreign market offer customers greater value.
Value simply means the worth of something. When people realize that the tennis shoes are worth it, it'll command a high value.