Inflation refers to the general increase in prices or the money supply, both of which can cause the purchasing power of a currency to decline. From a consumer’s point of view, inflation is often perceived in relation to prices. We call it “inflation” when consumer goods and services across a wide segment of the economy are rising in cost. From a theoretical perspective, however, there are several ways to define inflation and the factors that cause it. (Read Milton Friedman’s Britannica entry on money.) Four prevailing economic theories aim to define and explain inflation: Let’s look at each inflation theory ...(100 of 1608 words)