When you consider something from a market perspective (like babysitting for money), you consider it in the context of your own financial situation and its impact on you in an impersonal way (“I can earn sixty dollars, but it may not be worth my time”). In contrast, when you consider something from the social perspective (like doing your friend a favor), you consider it in the context of whether it is the right thing to do (“My friend needs my help for four hours, so I am going to help her”).
