Carl J. Freidrich, “The Political Thought of Neo-Liberalism” American Political Science Review 49, 2 (1955): 511. A contemporary example of achievement versus impediment competition is to compare the competition on products that occurs between BMW and Mercedes. This competition betters both products such that both firms sell more cars. Now, compare this to the patent battles between Apple and Samsung, which is impediment competition. It is designed to keep the other firm out of the marketplace regardless of the quality of the product.

Mark Blyth, Austerity, loc. 899