Conversation so far:
What is an example of a job that William Beveridge held early in his career?
After leaving university, Beveridge initially became a lawyer.
Where did William Beveridge work as a lawyer?
His interest in the causes of unemployment began in 1903 when he worked at Toynbee Hall, a settlement house in London.
What year did William Beveridge work at Toynbee Hall?
1903
Do we know what William Beveridge worked on while at Toynbee Hall?
Working closely with Sidney Webb and Beatrice Webb, Beveridge becoming active in promoting old age pensions, free school meals, and campaigning for a national system of labour exchanges.
Where else did Beveridge work early in his career?
In 1919 he left the civil service to become director of the London School of Economics and Political Science.

Question: What did he work on at the London School of Economics and Political Science?
Self-contained rewrite: What did William Beveridge work on at the London School of Economics and Political Science?