- The document discusses historical data on bear markets, corrections, and business cycles since the late 19th century. It finds that on average, corrections occur every 2.9 years with a 12.3% loss, while bear markets occur every 5.1 years with a 36.3% average loss. - It also examines stock market performance around recessions and recoveries, finding that stocks typically bottom 1-7 months before the economy and that recoveries are "front loaded" in the first year after a recession low. - The document advocates diversification and asset allocation as ways to reduce risk and increase returns, citing data showing portfolios with a mix of stocks and bonds experienced higher returns and lower volatility than 100