An increase in price is not automatically inflation, though Obama liberal media supporters would like you to think so
? If prices on average increase, you've got inflation. That is, the purchasing power of $1 after the price increase is lower than before. Of course measuring the actual rate of inflation is a much tougher prospect. Typically what is done is to take a 'basket' of goods for the average individual and look at how the prices on those goods change over time. You also have to factor in things such as increasing quality (e.g. a computer today is much better than one 3 years ago. Say it costs 10% more, how do you deal with that - is the inflation on the computer 10%, or do you use the price today of the now 3-year older computer, or something in between), and have problems with inflation then not always being an ideal measure for basing other policy decisions on, since you can have different rates of inflation affecting different groups of society, with various welfare consequences. So for example at the moment you've got spiralling oil prices leading to higher electricity+gas costs. You also have higher food prices. On the other hand you have decreasing prices in other areas, in particular some luxury good items. The average rate of inflation could end up being 5%, but for poor people inflation could be 15% and rich people just 1%, due to their different spending patterns.