Until one company charges "fair" prices and takes all the business?
> Cargill and just three other agribusiness companies control about 70 percent of the world’s agriculture market, according to Oxfam. Brands like PepsiCo, Nestle, Mondelez, and Conagra produce and market the vast majority of the offerings found in US grocery stores.
> Grocery retailers, too, have become increasingly consolidated. The ongoing Kroger-Albertsons merger, which could be blocked by the FTC, for example, has raised alarm bells from consumer advocates; if the merger goes through, Kroger-Albertsons and Walmart together would control 70 percent of their industry.
There are also enormous barriers to entry if you want to become a Tyson Foods or Kroger competitor.
There are also problems with paying for getting seed in the ground. A lot of farmers are incentivized to sell contracts for their goods for cheap as a way to finance planting.