Janet Yellen’s final meeting as Fed chair ended today with the Federal Open Market Committee (FOMC) deciding to leave the interest rate unchanged, which had been universally expected. The accompanying statement indicated the Fed now expects inflation will rise close to its 2 percent target by year’s end rather than stay below as implied by its previous statement. Overall, the Fed’s latest assessment of the U.S. economy and labor market was upbeat, appearing to pave the way for another rate increase at its March meeting. New Fed chair Jerome Powell will preside over that meeting, and he is not expected to deviate much from the policies Ms. Yellen supported. After relatively stout rallies in the wheat, soybean and soymeal m...