问答题 Many individuals think of investing in the stock market as being similar to gambling. When they think of the stock market this way, they miss one big point. A gambler has a negative expected return, while an investor has a positive expected return. Over time, the more money that an individual gambles at a casino, the more money he will lose. In investing, the more money that an individual commits to long-term investing, the more money that the individual will make, because the odds are on the side of the investor. Historically, stocks have returned about 10% per year before taxes. People who view the stock market like a casino tend to act like spectators, trading in and out of stocks every few months, or in extreme cases, every few days.