Question: Debra McGahan, a close friend of yours, mentioned to you that to complete a project in one of the courses she is taking this semester, she needs to describe a firm that is using an effective business model. Your immediate response is to recall that you just read this chapter and learned about Quirky's successful business model while reading this chapter's Savvy Entrepreneurial firm feature. Describe Quirky's business model to Debra for the purpose of explaining to her how this particular model allows Quirky to create value for the firm's stakeholders.