Robert L. Bartley Editor Emeritus, The Wall Street Journal As this collection of essays is published, markets, regulators and society generally are sorting through the wreckage of the collapse in tech stocks at the turn of the millennium. All the more reason for an exhaustive look at our last "bubble," if that is what we choose to call them. We haven't had time to digest the lesson of the tech stocks and the recession that started in March 2001. After a decade, though, we're ready to understand the savings and loan "bubble" that popped in 1989, preceding the recession that started in July...