Deficit spending and the national debt are different terms for the same concept

Which of the following price indices comes closest to measuring the cost of living of the typical household?

A) GDP deflator B) consumer price index C) producer price index D) household price index

Suppose the production of a good results in positive externalities. If output occurs at the intersection of the supply curve and the marginal social benefits curve, then

A. the socially optimal level of output will be produced. B. society will incur a net social cost. C. society will want less produced, and producers will be willing to satisfy that desire. D. there is market failure.