Economists and politicians have turned him into a mascot for free-market ideology. Some on the left say the right has badly misread him. Prepare for a very Smithy tug of war. (Part 2 of “In Search of the Real Adam Smith.”)

How did an affable 18th-century “moral philosopher” become the patron saint of cutthroat capitalism? Does “the invisible hand” mean what everyone thinks it does? We travel to Smith’s hometown in Scotland to uncover the man behind the myth. (Part 1 of a series.)