Before interacting with any given asset, it may be important to look up the asset’s type and function depending on your goals. Not all digital assets were created for investment purposes.
The SADF test finds the largest ADF statistic from all the windows considered. If this value exceeds a critical value, the null hypothesis can be rejected, and it is deemed the series displays explosive behaviour in at least one of the windows (taken as indication of a bubble occurring).

Liquidity measures how easy (or difficult) it is to swap one asset for another. Traders want to be able to convert one asset for another asset while having a minimal impact on the price. The more illiquid an asset is, the harder it will be to trade it without causing a major price change. Therefore, liquidity is an extremely important factor to consider before deciding where to trade.
A cryptocurrency transaction is usually a rapid and straightforward process. Bitcoin, for example, can be exchanged between digital wallets using only a smartphone or computer. Public and private keys and various incentive schemes such as proof-of-work and proof-of-stake are used to safeguard these transfers. Payments in cryptocurrencies are growing more popular among large corporations and in industries such as fashion and pharmaceuticals.