i) Compare and contrast the pricing models of iTunes, which charges per song, and Spotify, which adopts a monthly subscription fee for unlimited song play. Evaluate whether Spotify's pricing model is more conducive to generating profits compared to charging for songs individually. Provide reasoned arguments and support your analysis with relevant economic principles. (8 marks) ii) After years of floating around 1.35 US dollars per Euro, the exchange rate fell below 1.25 US dollars per Euro during the summer of 2014. How would this affect US export to Europe? (5 marks) iii) What impact would this have on European exports to the US? How would this affect American tourism in Europe? (5 marks) iv) When a nation's currency appreciates, it can have a number of different effects on the economy. Assume Your company sells all of its products in the international market. Explain the effect of currency appreciation to your company. (7 marks)