President Robert G. Mugabe of Zimbabwe turned 83 on Wednesday to the strains of the song “God Bless President Mugabe” on state-controlled radio, along with an interview on state television, a 16-page paean to his rule in Harare’s daily newspaper and the prospect of a grand birthday party — costly enough to feed thousands of people for months, his critics argued — on Saturday.

Zimbabwe’s economy is so dire that bread vanished from store shelves across the country on Wednesday after bakeries shut down, saying government price controls were requiring them to sell loaves at a loss. The price controls are supposed to shield consumers from the nation’s rampant inflation, which now averages nearly 1,600 percent annually.