. Citigroup's Ajay Kapur applies the term "plutonomy" to, primarily, the United States, although Britain, Canada and Australia also qualify. He notes that America's richest 1 percent of households own more than half of the nation's stocks and control more wealth ($16 trillion) than the bottom 90 percent. When the richest 20 percent account for almost 60 percent of consumption, you see why rising oil prices have had so little effect on consumption.