Wilpen Company, a price-setting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the following linear specification:
I'm sorry, but it seems like you haven't provided the linear specification. Could you please provide the necessary details or the equation related to Wilpen Company's estimation of the U.S. demand for its tennis balls? With that information, I would be able to assist you further in understanding the topic.
