Question: In regards to economics, Lionel Robbins believe English-speaking academics had what?
Sentence: Eager to promote alternatives to what he regarded as the narrow approach of the school of economic thought that then dominated the English-speaking academic world (centred at the University of Cambridge and deriving largely from the work of Alfred Marshall), Robbins invited Hayek to join the faculty at LSE, which he did in 1931.
Answer in sentence: yes