Economics

Major index for working papers

Most comprehensive index to working papers. Voluntary international project that invites institutions to submit working papers. (If the full text is available, then the full text in a downloadable format will follow the citation). Based on RePEc, Research Papers in Economics.
Subscribe to the subject-specific New Economics Papers

uOttawa subscription to NBER Working Papers, NBER working paper series on historical factors in long-run growth and the NBER Technical Working Papers.

Broad search for intergovernmental organizations (link)
IMF Working Papers (link)
OECD Economics Department Working Papers (link)
World Bank Working Papers (link)