user: ### NOW ANSWER:
Question: What is the average number of honorary professors in the Economics department with 1 lecturer?
Columns: ['Department', 'Head', 'Full professors', 'Honorary professors', 'Lecturers']
Types: ['text', 'text', 'real', 'real', 'real']
Sample row: ['Finance', 'Christina E. Bannier', 16.0, 1.0, 1.0]
SQL:

assistant: SELECT AVG("Honorary professors") FROM "Table" WHERE "Lecturers" = 1.0 AND "Department" = 'Economics';