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IDA was born on September 24, 1960 to promote economic development by providing finance to less developed countries on more flexible terms than regular International Bank for Reconstruction and Development (IBRD) loans were able to offer. Over its 60-year evolution, IDA supported the world in addressing stubbornly familiar problems–economic shocks, natural disasters, conflict–and challenges that are likely to define a generation: climate change, gender equality, transparent and accountable institutions, and more and better jobs.


The International Bank for Reconstruction and Development (IBRD), better known as the World Bank, was established in 1944 to help Europe recover from World War II devastation. The success of this enterprise highlighted the need for a new organization that would provide financing to low-income countries on more flexible terms than traditional IBRD loans were able to offer.

The International Bank for Reconstruction and Development (IBRD), better known as the World Bank, was established in 1944 to help Europe recover from the devastation of World War II. The success of that enterprise led the Bank, within a few years, to turn its attention to the developing countries. By the 1950s, it became clear that the poorest developing countries needed softer terms than those that could be offered by the Bank, so they could afford to borrow the capital they needed to grow.

As early as 1949, a report from the United Nations (U.N.) proposed a new international organization called the United Nations Economic Development Administration (UNEDA) under the auspices of the U.N. In the 1950s, the U.S. government-supported establishing a program to lend to poor countries on concessional terms with the backing of multilateral donors. After initial deliberations, the idea to create the International Development Association (IDA), an agency to provide ‘soft-loans’ to developing countries, was floated within the Bank under the stewardship of President Eugene Black.

The World Bank

(Explore IDA's history in a timeline developed with the World Bank Group Archives. Through 87 events and nearly 500 archival and informational sources, the timeline explores the origins of IDA, its vital role in providing financial and knowledge resources, and the innovative ways it has supported economic and social development across the poorest countries in the world.) 

Monroney Resolution

The World Bank
As the initiative to launch IDA gained considerable momentum within the Bank, externally it received support from Democratic Senator Mike Monroney of Oklahoma, who was interested in the provision of soft-loans for developing nations with the World Bank as the dispenser of the aid. When appointed chairman of the Senate Subcommittee on International Finance, he proposed what came to be known as the Monroney Resolution.

Articles of Agreement for IDA

The World Bank
After the resolution passed in the U.S. Senate in 1958, the U.S. government welcomed the proposal of a development association housed in the World Bank. After consultations, the Bank’s Board of Governors at its Annual Meeting in 1959 approved a United States resolution calling on the Bank’s Executive Directors to draft the Articles of Agreement for IDA.

Before the end of January 1960, the Bank had circulated the Articles of Agreement to all of the members for ratification, and received approval from member countries including the U.S. under President Dwight D. Eisenhower.

Launch of IDA

The World Bank
With initial funding of $912.7 million, IDA was launched on September 24, 1960, with 15 signatory countries - Australia, Canada, China, Germany, India, Italy, Malaysia, Norway, Pakistan, Sudan, Sweden, Thailand, United Kingdom, United States, and Vietnam. Within its first eight months of launch, IDA had 51 members and allocated credits worth $101 million to four countries: Sudan, Chile, India, and Honduras. In 1961, Honduras became the first country to receive an IDA credit, an $9 million for highway development and maintenance, including a 62-mile extension of the Western Highway.

IDA has grown to include 174 member countries, and has become the leading source of concessional lending to 75 of the world’s poorest countries. Overall, 36 countries have graduated from IDA. Since its inception, IDA credits and grants have totaled $533 billion, averaging $36 billion over the last three years (FY21-FY23).

Last Updated: Sep 12, 2023