You have been given a choice of paying $20,000 for a new GM car with a $3,000 cash rebate (net cost of $17,000 which you finance separately), or zero percent financing for 48 months with no cash rebate. What is the implicit rate of interest in this deal

Zara, a global retail and apparel manufacturer based in spain that has successfully implemented this idea by having a continuous flow of new products that are typically limited in supply. zara has created a system that draws its clientèle into its stores, on average, 17 times per year as compared to 4 times per year for most stores. how is zara using it to gain competitive advantage? what specific technologies are used by zara to maintain this advantage over its competition?