The expression "everything bubble" refers to the correlated impact of monetary easing by the Federal Reserve (and followed by the European Central Bank and the Bank of Japan) on asset prices in most asset classes, namely equities, housing, bonds, many commodities, and even exotic assets such as cryptocurrencies and SPACs. The term is related to the Fed put, being the tools of direct and indirect quantative easing that the Fed used to execute the monetary easing, and to modern monetary theory, which advocates the use of such tools, even in non-crisis periods, to create economic growth through asset price inflation. The term first came in use during the chair of Janet Yellen, but it is most associated with the subsequent chair of Jerome Powell, and the 2020–2021 period of the coronavirus pan