It says the price index contained this amount of beef, this amount of sheep wool, this amount of sole leather, and this amount of corn; that was the first consumer price index ever used for financial contracts.
High prices for corn, beef, and other staples right now make it difficult for a one-location restaurant to price competitively and still make a profit.
Problem is you guys force cows to eat corn instead of grass, I even remember as a kid during my first vacations in the US when some waitress at an upscale restaurant was bragging about their AAA grade corn-feed beef steak, which was only slightly less chewy than leather.
Historical trends show that demand for agricultural products like corn, poultry, pork and beef increases with per capita income, especially in India, Russia and China.