Consider a possible mechanism for controlling population. According to an idea first put forth by Kenneth Boulding in 1964, everyone would be given the right to produce one (and only one!) child, so a couple could produce two. Because this scheme over a generation allows each member of the current population to replace themselves, births would necessarily equal deaths and population stability would be achieved. This scheme would award each person a certificate, entitling the holder to have one child. Couples could pool their certificates to have two. Every time a child was born, a certificate would be surrendered. Failure to produce a certificate would cause the child to be put up for adoption. Certificates would be fully transferable. Is this a good idea? What are its advantages and disadvantages? Would it be appropriate to implement this policy now in the United States? For those who believe that it would, what are the crucial reasons? For those who believe it is not appropriate, are there any circumstances in any countries where it might be appropriate? Why or why not?