"Why Popcorn Costs So Much at the Movies, and Other Pricing Puzzles" seeks to unravel an array of pricing puzzles from the one captured in the book s title to why so many prices end with "9" (as in $2.99 or $179) to why ink cartridges can cost as much as printers to why stores use sales, coupons, and rebates. Along the way, economist Richard McKenzie explains how the 9/11 terrorists have, through the effects of their heinous acts on the relative prices of various modes of travel, killed more Am ...