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).
Virtual currencies. Like fiat currency, virtual currencies such as Bitcoin, Litecoin, and Ether are intended as a medium of exchange that enables two parties to transact business. But there are important differences: No physical coins or bills. Virtual currencies exist only in computer code. Except for visual representation of Bitcoin and altcoins in advertising and displays, and coin-like tokens that may be produced for marketing purposes, there are no actual coins or bills. Not legal tender. Virtual currencies are not legal tender and are not issued or backed by a government. However, many virtual currencies, which are called convertible virtual currencies, can be redeemed for fiat currency on a number of exchanges. No regulation. Virtual currencies are not regulated by any government agency or authority. However, regulation is being considered, especially where virtual currencies function as securities when they’re used to raise capital and when traded on exchanges.

The decision to buy cryptocurrency should always have a long-term outlook, as crypto prices can be particularly volatile. Safemoon is no different, as in its short lifespan, the price has already exhibited some significant price swings. To get a better sense of Safemoon’s outlook, let’s take a look at the technical and fundamental factors that could shape price in the future.
Argentina’s Energy Secretary in 2002, and subsequently its World Bank representative. Fiscal Fallacies – The Root of All Sovereign Debt Crises: Amar Bhidé & Edmund Phelps