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Demand function for tickets for a rock concert has been estimated to be ln Q = 2.327 - 1.215 ln P +1.
Demand function for tickets for a rock concert has been estimated to be
ln Q = 2.327 - 1.215 ln P +1.417 ln I
where Q denotes number of tickets (in thousands), P the (average) ticket price and I the average income of the concert goers.
Determine the values of the price elasticity of demand and the income elasticity of demand.