Bubbles refer to an area of research that focuses on understanding the occurrence and dynamics of economic bubbles in financial markets. Economic bubbles are rapid increases in asset prices followed by a sharp contraction, typically driven by speculation, exuberance, and irrational behavior among investors. Researchers in this area seek to understand the causes and consequences of bubbles, as well as develop strategies to identify, predict, and potentially prevent them in the future. The study of bubbles draws from various disciplines such as economics, finance, and behavioral psychology.