The story
From the parable of the broken window, in which destruction of window glass is said to be good because it provides some business for glaziers.
Etymology from Wiktionary, CC BY-SA 4.0.
glazier's fallacy
Today it means: The notion that destruction is good for an economy because it stimulates demand for goods and services. It is generally held to be a fallacy because there is no net benefit macroeconomically, no matter how much money some particular businesses may make. Full definition →