AndreyPopov / Getty Images A monopoly and an oligopoly are market ... monopolizing the debit card market and thus driving up prices for businesses and consumers. Gas and electric utilities ...

In the narrow middle between growers and eaters sit a handful of giant corporations, what economists call an oligopoly ... It is a consumer's world, a world full of choices and options, right?

From Wikipedia: An oligopoly ... consumers. From Goldman Sachs: Dreams of oligopoly. There is a natural pull toward consolidation among mature or maturing industries. An oligopolistic market ...

It reports the supermarket sector is highly concentrated and is an oligopoly. That means a market where just a few sellers control prices, at a cost to competition and consumers. The ACCC also ...