问题描述：
1,True or False or Uncertain and discuss thoroughly
Irrespective of the market structure considered,firms are said to break-even in the long-run.2,Just look at how firms and consumers behave,who is to say that selfishness is not a good thing?Discuss.
Irrespective of the market structure considered,firms are said to break-even in the long-run.2,Just look at how firms and consumers behave,who is to say that selfishness is not a good thing?Discuss.
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