The Kauffman Foundation’s Tim Kane generously included one of my questions on the latest quarterly econ blogger’s survey:

The net externality of the birth of an additional child in the United States is… [POSITIVE, ZERO, or NEGATIVE]

Survey says:


I suspect that left-wing economists are underrepresented in blogging, and would be a lot more likely to answer “zero” or “negative.”  But economists’ acceptance of the Julian Simon position is still amazingly strong.  I expected more like 40/40/20.