A child picked up the stone and broke the window glass of the store. The child who did the wrong thing ran away, and the store owner considered himself unlucky and took out a sum of money to buy the glass and reinstall it; this time, the glass shop had a business And made a small amount of money; the owner of the glass shop used the money to buy bread at the bakery, and the bakery was working again; the owner of the bakery went to the farmer to buy a few pounds of flour . just broke a glass, But it has led to the development of many industries in the society, and even created employment opportunities. This is really a great case of bad things becoming good things! This virtual case is exactly a famous theory in the economics-the theory of broken windows. According to the broken window theory, the following statements are true:. ['According to the theory of broken windows, shattering glass helps socio-economic development.', 'Money used to buy glass can also promote economic development through other channels.', 'If the glass is not broken, the store owner may also actively change the glass.', 'Loss of shattered glass and gains from glass sales have contributed to economic growth.']