An article in the Economist noted that while economic growth in China was slowing, Chinese “stocks have more than doubled in value.” The article states that unlike in developed countries, where large institutional investors buy the overwhelming majority of the stock purchased, in China 90% of buying is done by individual investors. The article described the demand for stock by these investors as a “mania.” What does the article mean when it describes stock buying by individual investors as a mania? Would individual investors be more likely than institutional investors to exhibit this behavior? Briefly explain.