id	domain	url
fsr-3238	papers.ssrn.com	http://papers.ssrn.com/sol3/papers.cfm?abstract_id�2021598)
fsr-3238	ssrn.com	http://ssrn.com/abstract
fsr-3238	www.ssa.gov	http://www.ssa.gov
fsr-3238	www.bls.gov	http://www.bls.gov/cex/csxann10.pdf)