By Horrace William   in Journal of Productivity Analysis

ISSN:0895-562X|35|2|129-141

Springer Publishing Company ‎(2011)‎

Access to resources Favorite 19.057583

By Horrace William C.   in Journal of Economic Literature

ISSN:0022-0515|52|3|869-870

American Economic Association‎(2014)‎

Access to resources Favorite 15.246066

By Ural Beyza   Horrace William   Jung Jin Hwa   in Applied Economics

ISSN:1466-4283|41|11|1437-1452

Routledge Ltd‎(2009)‎

Access to resources Favorite 11.434549