Perhaps you should try some spelling variations:
economics departments » economics department, economics experiments, economics payments
economies departments » economics department, economies developments, colleges departments
departments working » department working, departments wrong, department nursing
departments using » compartments using, department nursing, departments auditing
oecd economics » oecd economic, kcd economics, world economics
oecd economies » oecd economic
working papers » working paper
using papers » using paper, using panels, being papers

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( oecd economics departments using papers ) OR ( oecd economies departments working papers )).
• Adding a wildcard symbol may retrieve word variants: (( oecd economics departments using papers ) or ( oecd economies departments working papers ))*.