Context: During Hayek's years at the University of Vienna, Carl Menger's work on the explanatory strategy of social science and Friedrich von Wieser's commanding presence in the classroom left a lasting influence on him. Upon the completion of his examinations, Hayek was hired by Ludwig von Mises on the recommendation of Wieser as a specialist for the Austrian government working on the legal and economic details of the Treaty of Saint Germain. Between 1923 and 1924 Hayek worked as a research assistant to Prof. Jeremiah Jenks of New York University, compiling macroeconomic data on the American economy and the operations of the US Federal Reserve.

Question: What work did Hayek begin in 1923?
Answer: research assistant

Question: Where did Carl Menger and Friedrich von Wieser influence Hayek?
Answer: University of Vienna

Question: For whom did Hayek work upon being hired by Ludwig von Mises?
Answer: the Austrian government

Question: What was Hayek gathering during his time as a research assistant?
Answer: macroeconomic data

Question: What was the name of the professor Hayek worked for as a research assistant?
Answer: Jeremiah Jenks