The island's traditional economy was based around
sugarcane plantations; of the 516,730 jobs on the island in 1940, almost half of them were agriculture-based, with 124,076 of these based on sugar-cane farms. However, Esteban Bird described in detail the misgivings of the sugarcane industry and the monoculture economy in general. By the middle of the twentieth century it remained one of the poorest in the Caribbean. After possession of the island was transferred to the United States in 1898 after the Spanish-American War, it remained mostly neglected. Conditions in Puerto Rico worsened during the world wars, after years of neglect. Pressure grew in the U.S. to address the worsening situation, influenced by journalists like John Gunther who described the island in 1941 as such: "I saw, in short, misery, disease, squalor, filth. It would be lamentable enough to see this anywhere...to see it on American territory...is a paralyzing jolt to anyone who believes in American standards of progress and civilization." In May 1947, the
Puerto Rican legislature passed the Industrial Incentives Act eliminating all corporate taxes, to encourage U.S. investment in industry. The initiative granted private and foreign investment a ten year period of exemption from taxes on many of the expenses for businesses involved in the industrial economy. These exemptions included: • "license fees, excises, or other municipal taxes levied by any ordinance of any municipality," • "property devoted to industrial development, • "income tax on income from industrial development," and more. This was proposed by Senator
Luis Muñoz Marín of the
Popular Democratic Party, and became known as Operation Bootstrap. Based on 1930s
New Deal economic relief reforms and infrastructure provided by the programs such as the
Puerto Rico Reconstruction Administration, Operation Bootstrap intended to move Puerto Rico away from its
agrarian system and into an industrial economy. The government's Administration of Economic Development — today known as the
Puerto Rico Industrial Development Company (PRIDCO) — encouraged the establishment of factories. Following the Elective Governor Act of 1947 (also known as the Crawford-Butler Act), Muñoz was elected the first governor of Puerto Rico while under U.S. control, paving the way for the full establishment of Operation Bootstrap across the island. According to Virginia Sanchez Korrol from the Center for Puerto Rican Studies, Operation Bootstrap was based on 3 essential elements: “1) industrialization by invitation: the inducement of American corporations to relocate in Puerto Rico in exchange for lucrative tax benefits; (2) a cheap labor pool, educated in the English language and under a U.S. imposed curriculum; (3) proposed emigration of over a third of the island’s population, a security measure to insure the plan’s viability.” The US government in Puerto Rico enticed US companies by providing labor at costs below those on the mainland, access to US markets without import duties, and profits that could transfer to the mainland free from federal taxation. The Administration of Economic Development invited investment of external capital, importing the
raw materials, and exporting the finished products to the mainland. To entice participation, tax exemptions and differential rental rates were offered for industrial facilities. As a result, Puerto Rico's economy shifted labor from agriculture to manufacturing and
tourism. The manufacturing sector has shifted from the original labor-intensive industries, such as the manufacturing of food, tobacco, leather, and apparel products, to more capital-intensive industries, such as pharmaceuticals, chemicals, machinery, and electronics. Through this project, a rural agricultural society was transformed into an industrial working class. Although initially touted as an economic miracle, by the 1960s, Operation Bootstrap was increasingly hampered by a growing
unemployment problem. As
living standards and wages in Puerto Rico rose, manpower-intensive industries faced competition from outside the United States. As of 2005 the continental United States remains Puerto Rico's major trading partner, received 86% of Puerto Rico's exports and providing 69% of its imports. ==Effects==