Enchantment Cosmetics, Inc., offers a line of cosmetic and perfume products marketed through leading department stores. Product Manager Erica Kane recently raised the suggested retail price on a popular line of mascara products from $9 to $12 following increases in the costs of labor and materials. Unfortunately, sales dropped sharply from 16,200 to 9,000 units per month. In an effort to regain lost sales, Enchantment ran a coupon promotion featuring $5 off the new regular price. Coupon printing and distribution costs totaled $500 per month and represented a substantial increase over the typical advertising budget of $3,250 per month. Despite these added costs, the promotion was judged to be a success, as it proved to be highly popular with consumers. In the period prior to expiration, coupons were used on 40% of all purchases and monthly sales rose to 15,000 units.
A. Calculate the arc price elasticity implied by the initial response to the Enchantment price increase.
B. Calculate the effective price reduction resulting from the coupon promotion.
C. In light of the price reduction associated with the coupon promotion and assuming no change in the price elasticity of demand, calculate Enchantment's arc advertising elasticity.
D. Why might the true arc advertising elasticity differ from that calculated in part C?

  • CreatedFebruary 13, 2015
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