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Taxation differs from country to country. For example, in the United States and Japan, a tax on cigarettes and alcohol is an important way for the government to get money. This is sometimes called a "sin tax." In other words, by doing something bad, you do something good: You give money to the government. Yet in Russia, there is almost no tax on tobacco or alcohol.
It is often said that taxes will change in the 21st century. There may be new taxes on bank savings and financial transactions. Trash is likely to be taxed in the future. When you drive your car into a large city, you might have to pay a tax for that. One thing is certain: There will be new taxes for the rich and poor in countries that have fewer and fewer young people to support society.
If you like to save money, you might be penalized for this in the future. This would encourage people not to hold money, but spend it. This might be important in societies such as Japan, where people traditionally save large amounts of money. A strong economy is one in which money changes hands often. Money "grows" in this way.
When you go overseas, you usually exchange yen for another currency, such as dollars or the euro. Not only are tourists a good target for a tax(because it is thought that they have money to spend), but it would help to stop speculators. Speculators are people with large amounts of money who buy one currency, hold it, and then sell it to make money. Imagine that somebody exchanges \10,000,000 at 92 yen per dollar. If he changes this money back to yen at just 93 yen to a dollar, then he has made about \100,000. Any government would love to get some of this profit.
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