Question
Tesla produces small cars in a perfectly competitive market using labour (L) and capital (K). Tesla's production function is given by: f(L,K) = min {0.05L,
Tesla produces small cars in a perfectly competitive market using labour (L) and capital (K). Tesla's production function is given by:
f(L,K) = min {0.05L, K1/2}
where q is the number of cars produced.
(a) Starting from L > 0, K > 0, suppose you double the amount of L and K. Is it possible for output (q) to more than double (i.e., increase from q to Aq where A > 2)?
(b) Find the minimum cost to produce q cars when the price of labour (w) is 400 and price of capital (r) is 10? [Hint: the answer would involve q.]
(c) Using the answer to part (b), we can show that Tesla's supply function is of the following form:
q = { a + bp for p > AVCmin and
0 for p less than or equal to AVCmin
where AVC stands for average variable cost. Find a, b, and AVCmin
(d) A new technology of producing cars has come to the market which only uses capital
g(K) = 0.5K1/2
As in part (c), continue to assume w = 400 and r = 10.
Tesla maximises profits. It uses both technologies and sells q* cars in a perfectly competitive market where the price of small cars is p*. If 1/3 of cars are produced using new technology and 2/3 of the cars with old technology, then p* = ___________________; q* = _______________
How many cars do Tesla produce in total? What must be the price of cars (assuming that the market for cars is perfectly competitive)?
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