As one shows more of the universe is governed by feelings and beliefs are that determine people’s lives, as Andrew Corentt tells us in his book I am happy, I am rich, a recent study seems to indicate that humor, feelings of people determine the performance of the shares in the stock market. Note: This article is based on information taken from the site Smartmoney.com. This is surprising to some, not to human development experts that long time they insist that people should always keep a sense of happiness, optimism, positivity for success, wealth and happiness. A recent study indicates that messages as short as 140 characters can predict the behavior of the market with up to a 90% accuracy. Research of Johan Bollen of Indiana University and two colleagues of his shows that Twitter is a good predictor of the mood of the market. They found that level of calm or anxiety relative in virtual universe of Twitter coincides fairly well with evolution the Dow Jones Industrial average will have four days later. According to research from Johan Bollen of Indiana University, and two colleagues, Twitter turns out to be an accurate predictor of the mood of the market. The researchers found that the level of calm or on anxiety in the Twitter universe in general matches evolution that will take the Dow Jones Industrial average four days later. Bollen study, and his colleagues at the University of Indiana Huina Mao and Xiao-Jun Zeng, of the school of the University of Manchester computer science consisted of the analysis of millions of messages, since 2008, and subsequent classification according to the mood which showed, did the masses that Alexis were happy or sad, calm or anxious, hostile or welcome?with confused or mental clarity? Then the researchers compared the changing moods with the evolution of Dow Jones in 2008. Some pairings as alegre/sad or determined/confused have no power predictive but pairing anxious/calm if it had.