In a 2006 journal article, "On Hayekian Triangles," Walter Block and William Barnett lists 14 separate objection to the popular device used (in various forms) by Hayek, Rothbard, and Roger Garrison to illustrate how artificially low interest rates lead to an unsustainable boom. Block concludes that the Hayekian triangle can be salvaged, while Barnett thinks it should be abandoned altogether.