William Henry Beveridge, 1st Baron Beveridge, KCB (5 March 1879 - 16 March 1963) was a British economist who was a noted progressive and social reformer. He is best known for his 1942 report Social Insurance and Allied Services (known as the Beveridge Report) which served as the basis for the post-World War II welfare state put in place by the Labour government elected in 1945. He was considered an authority on unemployment insurance from early in his career, served under Winston Churchill on the Board of Trade as Director of the newly created labour exchanges and later as Permanent Secretary of the Ministry of Food. He was Director of the London School of Economics and Political Science from 1919 until 1937, when he was elected Master of University College, Oxford.

After leaving university, Beveridge initially became a lawyer. He became interested in the social services and wrote about the subject for the Morning Post newspaper. His interest in the causes of unemployment began in 1903 when he worked at Toynbee Hall, a settlement house in London. There he worked closely with Sidney Webb and Beatrice Webb and was influenced by their theories of social reform, becoming active in promoting old age pensions, free school meals, and campaigning for a national system of labour exchanges.  In 1908, now considered to be the United Kingdom's leading authority on unemployment insurance, he was introduced by Beatrice Webb to Winston Churchill, who had recently been promoted to the Cabinet as President of the Board of Trade. Churchill invited Beveridge to join the Board of Trade, and he organised the implementation of the national system of labour exchanges and National Insurance to combat unemployment and poverty. During the First World War he was involved in mobilising and controlling manpower. After the war, he was knighted and made permanent secretary to the Ministry of Food.  In 1919 he left the civil service to become director of the London School of Economics and Political Science. Over the next few years he served on several commissions and committees on social policy. He was so highly influenced by the Fabian Society socialists - in particular by Beatrice Webb, with whom he worked on the 1909 Poor Laws report - that he could readily be considered one of their number. He published academic economic works including his early work on unemployment (1909) and a large historical study of prices and wages (1939). The Fabians made him a director of the LSE in 1919, a post he retained until 1937. During his time as Director, he jousted with Edwin Cannan and Lionel Robbins, who were trying to steer the LSE away from its Fabian roots.  In 1933 he helped set up the Academic Assistance Council. This helped prominent academics who had been dismissed from their posts on grounds of race, religion or political position to escape Nazi persecution. In 1937, Beveridge was appointed Master of University College, Oxford.

What did he work on at the London School of Economics and Political Science?
he served on several commissions and committees on social policy.