For 10 points, name this corn-based staple whose inflation has caused consternation in Mexico.
Seventy-five thousand people marched in a February 2007 protest over these items, and economy minister Eduardo Sojo has promised government action to cap their prices, which were fully set by law until 1999. Such suppliers as Cargill and Maseca participated in a 2007 "gentleman's agreement" capping their prices at 78 cents a pound, though the average price for these is expected to rise forty percent this summer, largely due to increased demand for ethanol in fuels. For 10 points, name this corn-based staple whose inflation has caused consternation in Mexico.
Seventy-five thousand people marched in a February 2007 protest over these items, and economy minister Eduardo Sojo has promised government action to cap their prices, which were fully set by law until 1999.
{tortillas}