3.1 [related to the Economics in Practice on p. 84] Some airplane manufacturers have merchandise sales the souvenirs such as airplane models. They are available on the official online store. Suppose you are a huge fan of airplane models and wish to purchase an authentic Boeing airplane model. Go to the Boeing Store’s Website at boeingstore.

com and click on “Models”. Select an airplane model and find the price of it. Do the same for the other two types of models. Would the models you found be considered perfect substitutes or just substitutes? Why? Do you think there are other products available that would be considered substitute products for the authentic models you looked up? Briefly explain.