Index of /data-appendix/w18581

Apache/2.2.24 (FreeBSD) mod_wsgi/3.4 Python/2.7.3 PHP/5.4.12 mod_ssl/2.2.24 OpenSSL/0.9.8x mod_apreq2-20090110/2.8.0 mod_perl/2.0.7 Perl/v5.14.2 Server at www.nber.org Port 80