One of Hague's first books, A Textbook of Economic Theory, brought him to the attention of Margaret Thatcher (later Baroness Thatcher) and he joined the No. 10 Policy Unit under Sir John Hoskyns.
Hague's initial publication, A Textbook of Economic Theory, garnered attention from Margaret Thatcher (who later became Baroness Thatcher), prompting him to join the No. 10 Policy Unit under Sir John Hoskyns.