The cost of children

In the adoption world, there is a little known fact that race does effect the cost of babies for adoption. Adoption in itself is quite expensive but an african american child can cost as much as 10k less than a caucasion child. So Caucasion children are more expensive than hispanic children which are more expensive than african american children. I really don't understand how this can happen in 2010. How can supply and demand enter into the price of adoption? Here's an example: The same agency is offering an AA child for 20k. Caucasion/Hispanic mix for 28k and full caucasion for 33k. Sad but true story.