There were many villains in this morality tale: the fee-obsessed underwriters who should have known better than to peddle all of the crap they brought to market; the research analysts who were the cheerleaders for the banking departments and who were eager to recommend Net stocks that could be pushed by commission-hungry brokers; corporate executives using “creative accounting” to inflate their profits. But it was the infectious greed of individual investors and their susceptibility to get-rich-quick schemes that allowed the bubble to expand.