The settlement price of wheat per bushel (60 pounds) is $6.13 August 18 at Chicago Board of Trade compared to $7.58 at the start of 2022 before the Ukraine war started. Russia's bumper crop and its ability to continue exporting is one reason. Higher commodity prices also mean producers plant more. This is good news for the cost of living not just in poor countries but also in the US and Europe. Peter Coy looks at the dynamics of wheat pricing and production.