Arnold Kling (born 1954) is an American economist, scholar, and blogger known for his writings on EconLog, an economics blog, along with Bryan Caplan and David R. Henderson. Kling also has his own blog, askblog, which carries the motto: "taking the most charitable views of those who disagree." The "ask" in askblog stands for "Arnold S. Kling." He is an Adjunct Scholar for the Cato Institute and is affiliated with the Mercatus Center. Kling has commented on hydraulic macroeconomics and he is also the author of a number of books on economics and politics. He identifies as a libertarian.