Being the Empress of Iran is more than glittering tiaras, palatial residences, dazzling receptions and state visits. For Farah Pahlavi, 36, the first Empress in Iran's 2,500-year history to be officially designated regent (she will assume power in the event that the Shah dies before Crown Prince Reza turns 20 in 1980), life involves long days of official workincluding answering about 50,000 letters a year. "My husband is interested in Iran's G.N.P.," she says. "I am interested in its G.N.H.
Gross National Happiness."
Intelligent, sensitive and elegant, Farah calls herself "a working Empress."...