weakest

Very environmental unfriendly....

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But is it the case that patent have time limit? Is it something like 50 years (but forgotten if it is copyright, or patent...)

weakest

咁個通訊業者唔啱la....搶咗chruch的monopoly profit (變咗duopoly的market structure)....., 何苦呢...

P.S.: 1. Monopoly profit > 2 x cournot duopoly profit > 2 x bretrand duopoly profit = 0
2. Therefore, if the chruch will share half of the monopoly profit to the 通訊業者, they will both be better off....