Public goods are not privately provided because when goods are nontrivial, there is too much competition for firms to earn a profit. When goods are no excludable, those people purchasing the good...

Public goods are not privately provided because when goods are nontrivial, there is too much competition for firms to earn a profit. When goods are no excludable, those people purchasing the good could simply allow others the use without requiring compensation. When goods are no excludable, there is too much competition for firms to earn a profit when goods are nontrivial, those people purchasing the good could simply allow others use without requiring compensation.