(Transcript of audio with descriptions. Transcript includes narrator headings and description headings of the visual content)
(Speaker)
In this part, you're asked to find the volume of music chosen by the sorority assuming they derive all social benefit and pay none of the costs.
(Description)
The following text is briefly written:
Only members of the sorority benefit from the music, and they bear none of the cost. Which volume of music will they choose?
(Speaker)
We will start by reproducing the graph from before.
(Description)
The graph from previous slide is shown.
(Speaker)
Since the marginal costs of playing the music for the sorority is zero, the will turn the volume up to the point where the marginal social benefit is zero.
This will occur between 96 and 97 decibels, or 96.5 decibels.
(Description)
Point at the intersection of the line, MSB, and the horizontal axis, is labeled as The private equilibrium occurs where the marginal social benefit is zero. The point has the coordinates, 96.5 and 0.