Nice Squirrel
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I was looking at a BS MicroEcon textbook on the pot yesterday that spoke about perfect competition. The author used the personal pronoun "I" throughout the text. Maybe LD knows the book and author.
But he did talk about "perfect competition".
But he did talk about "perfect competition".
ksen's link said:Perfectly competitive markets exhibit the following characteristics:
There is perfect knowledge, with no information failure or time lags. Knowledge is freely available to all participants, which means that risk-taking is minimal and the role of the entrepreneur is limited. (Which means perfect competition can never exist in reality.)
There are no barriers to entry into or exit out of the market.(Can be argued to exist in limited situations)
Firms produce homogeneous, identical, units of output that are not branded.(Also, while they can exist the mere fact that different suppliers identities are known will skew the perceptions due to the irrationality of the market (consumers))
Each unit of input, such as units of labour, are also homogeneous.(Can be argued to exist in limited situations)
No single firm can influence the market price, or market conditions. The single firm is said to be a price taker, taking its price from the whole industry.(Does not exist in the real marketplace. The players in any market interact and make a dynamic marketplace.)
There are a very large numbers of firms in the market.(This would also assume that all firms provide equal access in the same location and same advertising since factors like geography or visibility will influence the market. I cannot see this happening in reality.)
There is no need for government regulation, except to make markets more competitive.(This contradicts itself. You want perfect competition without government intervention, but government should intervene to make it more competitive meaning the natural competitive results if not ideal require government regulation. Would this come in the form of price and profit controls?)
There are assumed to be no externalities, that is no external costs or benefits.(Which means perfect competition can never exist in reality.)
Firms can only make normal profits in the long run, but they can make abnormal profits in the short run.(Somebody help me out with this one. Why does this matter?)