It costs $1 per song to download music legally. Suppose the effective cost of downloading a song illegally is $0.1 per song, after accounting for the risk of getting caught. Further, imagine a typical consumer has an entertainment budget of I = 900, and there are 100 million consumers that illegally download music in the market.

g,) Calculate the aggregate demand curve for illegal downloaders as a function of P_D if there are 100 million downloaders and each downloader has a budget of I = 900. (Hint: 900^0.5 = 30).

h.) A naive commentator claims that since there are 15 billion illegal downloads every year and each song would cost $1 to download legally, illegal downloading must be costing the industry $15 billion in revenue. Explain in words why this value is incorrect.