1 What is the marginal social benefit from security lights at each quantity of lights?

The table sets out the marginal benefi ts that Ann, Sue and Zack receive from security lighting of their shared parking area. The marginal social cost of the security lighting ( MSC ) is a constant £12 per light.

Transcribed Image Text:

Ann Number of lights Marginal benefit Sue (pounds per light) Zack 0 5 10 15 1 4 8 12 23 3 6 9 2 4 6 4 1 2 3 5 0 0 0