TABLE INVENTORY DATA FOR DOGS-R-US AND K-9, INC. STORES DOGS-R-US K-9, INC. Cost of Goods Sold $560,000.00 $640,000.00 Category Average Inventory in Units Value per Unit Average Inventory in Units Value per Unit Dog Beds 200 $55.00 140 $55.00 Dog Bones & Treats 1,200 $2.50 250 $2.50 Pet Feeders 50 $12.50 20 $12.50 Flea & Tick 350 $7.50 75 $7.50 Dog Kennels 10 $65.00 2 $65.00 Dog Pens 10 $220.00 3 $220.00 Patio Pet Doors $120.00 2 $120.00 Dog Ramps $150.00 $150.00 Pet Strollers 10 $40.00 2 $40.00 Pet Supplements 1,400 $4.50 150 $4.50 Dog Toys 250 $2.20 100 $2.20|

Consider a​ three-firm supply chain consisting of a​ retailer, manufacturer, and supplier. The​ retailer's demand over an​ 8-week period was 110 units each of the first 2​ weeks, 220 units each of the second 2​ weeks, 280 units each of the third 2​ weeks, and 400 units each of the fourth 2 weeks. The following table presents the orders placed by each firm in the supply chain.​ Notice, as is often the case in supply chains due to economies of​ scale, that total units are the same in each​ case, but firms further up the supply chain​ (away from the​ retailer) place​ larger, less​frequent, orders.                                                  Week Retailer Manufacturer Supplier 1            110                    220             660 2                        110 3                      220                  440 4                  220 5                    280                  560                1360 6                       280 7                      400                  800 8…

What e-business revenue model(s) does Amazon.com use? Provide all answers that apply to Amazon.com. Also provide evidence or description on how Amazon uses the revenue model(s).

Which of the following descriptions best describe the role of a supply chain? Select one: a. The role varies based on the nature of the environment, but can include sourcing, production, marketing, sales, after-sales service, and the acceptance of risk and responsibility for the product. b. The logistics of an organization's distribution strategy. c. Physical distribution and payment collection. d. The role varies based on the nature of the environment, but can include physical ownership, payment collection, and the inclusion of after-sales service, but never involves risk or responsibility for the product.