Volume 27 (2023)
Volume 26 (2022)
Volume 25 (2021)
Volume 24 (2020)
Volume 23 (2019)
Volume 22 (2018)
Volume 21 (2017)
Volume 20 (2016)
Volume 19 (2015)
Volume 18 (2014)
Volume 17 (2014)
Volume 16 (2012)
Volume 15 (2011)
Volume 14 (2010)
Volume 13 (2010)
Volume 12 (2009)
Volume 11 (2007)
Volume 10 (2006)
Volume 9 (2005)
Volume 8 (2004)
Volume 7 (2003)
Volume 6 (2002)
Volume 5 (2001)
Measure of effectiveness degree of R&D and physical investment on industries and mines sectors value added

Hedyeh Vojdani Tehrani; Abdolreza Roknoddin Eftekhari

Volume 9, Issue 20 , October 2005, , Pages 245-264

Abstract
  The role of research in the process of economic development has been proved to be very effective and investment on research has varying effects on economic variables including value added and productivity. These impacts are of importance in industry & mine. In this paper several hypotheses are tested ...  Read More