consumerism

Short definition from Wiktionary

Noun

1. 1
   A materialistic attachment to possessions with a heavy use of consumables; a lifestyle based on such tendencies.
2. 2
   An economic theory that increased consumption is beneficial to a nation's economy in the long run.
3. 3
   A policy or social movement of protecting and informing consumers through honesty in advertising and packaging, as well as improved safety standards, among other measures.