Is inflation a good or bad thing? Why do governments want some inflation?
Although there are some good points made here as to the cause of inflation (mostly related to supply and demand), azcoastal does head in a different direction, one which I myself was going to take. Let me give a different angle, however. Another cause of inflation is the printing of money by the government (not simply replacing old money with new, but adding to the total money in circulation). If the government doubles the amount of currency in circulation (for the sake of argument and easy math), the value of all money decreases by a factor of 2. That's inflation, and the way G. Edward Griffin in The Creature From Jekyll Island puts it, it's really tantamount to a hidden tax. In a nutshell, the federal government wants to buy some cool stuff like new tanks or planes, or they want to give a bunch of food stamps to poor people, or they want to fly their private jets around, but they don't have enough money from taxes. So, they print money and spend it and buy their stuff. Because they've just increased the money in circulation, however, money loses its value. For example, your savings has dropped in value by half, despite the fact that the same number of dollars is in your savings account. This is just a way the government can tax you without taxing you. They buy stuff and you now have less money (i.e., your retirement is worth less) and you don't even know you just got taxed. Makes me sick that we let our "leaders" get away with this.