Which of the following statements about network economics is not true? OA. The law of diminishing returns does not always apply to every situation. OB. In network economics, the marginal cost of adding new members to the network is higher than the marginal gain. OC. From a network economics perspective, the value of a community of people grows as the number of participants in the community increases. OD. Information technology can be strategically useful from a network economics perspective. OE. eBay is an example of a business model that is based on the principle of network economics. The final step in the four-step model of business problem solving is: A. outcome. B. change management. OC. employee retraining. D. feedback. OE. implementation. The effect of the Internet has been to increase a company's bargaining power vis--vis its customers. True False