I don't regularly follow anyone. (Should I? Would love to have your recommendations.) But in my occasional reading, leaving aside economics professors who write columns, I like Tim Harford, Martin Wolf, Rana Faroohar, Catherine Rampell, Peter Coy, and several anonymous editors, article authors and columnists for The Economist. But the single best journalistic article I remember, which pinned down pretty much all aspects of the politics and economics of trade protectionism, and did it with brilliant humor, was Barry Newman, "The Greeks have a word for banana but lack bananas", in the Wall Street Journal, some time in 1983.