the president of the Dominican Republic from May 1978 to July 1982.

At the age of 15, Guzmán was working in his family's textile store. By age 17 he was already managing stores for the Curaçao Trading Company. He invested in land and started growing rice, soon expanding into other agricultural exports. Guzmán was a wealthy cattle rancher by 1940. After the death of Rafael Trujillo, dictator of the Dominican Republic, Guzmán joined the left-of-centre Dominican Revolutionary Party (PRD).

When Juan Bosch (Bosch, Juan), founder of the party, was elected president in December 1962, Guzmán was made secretary of agriculture, serving until Bosch was deposed in September 1963. In 1966 Guzmán was the unsuccessful candidate for vice president as the running mate of Juan Bosch. The PRD boycotted subsequent elections, but by the elections of 1978, the PRD and Bosch were heading for a final rift. Bosch still preferred to boycott the elections, but most members of the PRD wished to rejoin the political process. Bosch left the PRD to form a new party, and the PRD chose Guzmán as its candidate.

As candidate of the PRD, Guzmán promised to cut back the expensive urban public-works program of the current president, Joaquín Balaguer. In the election of May 1978 Balaguer's supporters in the military ordered the counting of the election vote halted when it appeared that Guzmán was winning. Warnings issued by President Jimmy Carter (Carter, Jimmy) made it clear that the United States would oppose a coup in favour of Balaguer. The point was reinforced when Carter sent a high-level civilian and military delegation to attend Guzmán's inauguration. Having inherited a $1,800,000,000 debt, Guzmán installed a cabinet of technocrats in order to deal with the Dominican Republic's severe economic problems, which were aggravated by the collapse of world sugar prices. The administration's aggressive agricultural policy was successful in its first year when, for the first time in its history, the country became self-sufficient in two important staple crops, rice and beans. Guzmán also undertook an ambitious program of rural school and health-centre construction and adopted measures to repair the nation's crumbling road system.

In 1981 Guzmán became the first elected president since the country's founding to declare he wouldn't run for reelection. Although his candidate of choice did not get the party's nomination, the PRD's candidate won the peaceful May 1982 presidential election. Before the inauguration, Guzmán was found shot to death. He apparently committed suicide, although officially his death was called accidental.

After nearly half a century of ruthless dictatorship, foreign intervention, and repressive oligarchy, Guzmán can be given the credit for having moved the military out of politics in the Dominican Republic. He had inherited a turbulent political and economic situation and left a stable economy and democratic institutions guaranteeing civil liberties.