The Stock Market Capitalization (SMC) of a country, defined as the aggregated market value equity of companies in the respective equity market, is commonly used to measure the widening and deepening of stock market activity. SMC also influences economic growth predictions and public consensus...

Purpose: The authors develop new quantitative methods to estimate the level of speculation and long-term sustainability of Bitcoin and Blockchain. Design/methodology/approach: The authors explore the practical application of speculative bubble models to cryptocurrencies. They then show how the...