Conversation so far:
What is an example of a job that William Beveridge held early in William Beveridge's career?
After leaving university, Beveridge initially became a lawyer.
Where did he work as a lawyer?
worked at Toynbee Hall, a settlement house in London.
What year did he work at Toynbee Hall?
1903.
Do we know what he worked on while at Toynbee hall?
becoming active in promoting old age pensions, free school meals, and campaigning for a national system of labour exchanges.
Where else did Beveridge work?
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  Beveridge work on at the London School of Economics and Political Science?