Krugman writes:But neither I nor most economists are going to make the effort of puzzling through difficult writings unless we’re given some sort of proof of concept — a motivating example, a simple and effective summary, something to indicate that the effort will be worthwhile. Sorry, but I won’t commit to sitting through your two-hour movie if you can’t show me an interesting three-minute trailer.Indeed. Krugman concludes with the admonition that "nobody has to read what you write." I wish this were more generally understood. I've read articles in Political Analysis about things I don't...