Since the change in quantity is zero, dividing that by any price change is also zero, meaning that perfectly inelastic demand has a coefficient of zero
Professor Robert West, director of tobacco studies at University College London, explains why the FDA is concerned about menthol cigarettes
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$29.99 USA Gold Menthol Green 100's Box Cigarettes,10 Packs/20 Sticks Of 200 Cigarettes USA Gold Menthol Green 100's Box CigarettesUSA Gold Menthol Green 100'sBox1 carton = 10 packs
According to the latest data, these products generated between 6,000 and 10,000 monthly sales