[jmherbener]

Here is a brief comment by the philosopher David Gordon on someone’s objection to a priori knowledge in economics.

http://mises.org/daily/6582/Human-Reason-and-A-Priori-Economics

Here are a few defenses of a priori knowledge in economics.

http://library.mises.org/books/Hans-Hermann%20Hoppe/Economic%20Science%20and%20the%20Austrian%20Method.pdf

http://library.mises.org/books/Ludwig%20von%20Mises/Human%20Action.pdf (chapter 2)