How does one spot the bottom of a bear market? What brings a bear to its end? There are few more important questions to be answered in modern finance. Financial market history is a guide to understanding the future. Looking at the four occasions when US equities were particularly cheap - 1921, 1932, 1949 and 1982 - Russell Napier sets out to answer these questions by analysing every article in the Wall Street Journal from either side of the market...