Unfortunately, the market's ups and downs ultimately depend on the choices of a massive number of people-and you don't know what they're thinking about before they decide to buy or sell a stock.

From this we can see in the National Day period, digital camera prices relatively stable, there is no big ups and downs of the phenomenon, has provided us with a better time to buy.

For instance, if you buy a book at Amazon. com, and UPS is handling the delivery, are you concerned with when package has boarded the UPS plane or when it arrives in your country?