I wouldn't say that I'm an expert on the economics of cryptocurrencies or fiat currencies. However, what I have learned from being involved with crypto currency over the past few years is that investing here is very risky unless you know the right way to invest. Now to know the right path, you need to know how much your ability is, you have to invest depending on your ability, it can be long-term investment or a short-term investment.
Why would you need to learn economics? Most of that has nothing to do with cryptocurrency, and concerns local & global markets instead.
I hear a lot of things along the lines of "cryptocurrency is risky". Yes,
No-name, unknown cryptocurrencies are risky. If you buy one of the more well-known ones, you know exactly what you are going to get.