3. A few artists, including Taylor Swift, have removed some or all of their music from Spotify because of disputes involving artist compensation. How do the three areas of channel conflict apply to Spotify? Who has the power in the supply chain, artists, labels, or Spotify?

4. Compare and contrast the Spotify music supply chain with Apple's iTunes. How do these supply chains differ? How are they similar? What role does retailer image play in defining these differences?