At the current output level, the marginal social benefit exceeds the marginal private benefit is correct.
It is the maximum amount of output that an economy can maintain. It is "natural" because an economy returns to its normal level of output after a recession or period of overheating. Natural level of output is also known as natural level of production, long-run aggregate supply, or full-employment output. Level (dB) Out inside the output block allows you to fine-tune the output level before converting to an analog signal. While the level is still in the digital realm, it is modified. It functions in the same way as a Level control placed before the output block.
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