Although this theory is a popular way to justify inflation amongst central bankers, it does not appear to always hold true and is considered controversial amongst economists. Consumer electronics is one example of a market where prices constantly fall but which is not in depression. Similarly, the value of bitcoins has risen over time and yet the size of the Bitcoin economy has also grown dramatically along with it. Because both the value of the currency and the size of its economy started at zero in 2009, Bitcoin is a counterexample to the theory showing that it must sometimes be wrong. What is Cryptocurrency? Different trading platforms are not synchronized with each other. Meaning their prices are independent of the other. It varies because the price in every platform depends on the traders. These varying prices on different exchanges are due to few things.