Taheri Reykande1,E. , , Rafiee2,H. , , Mohammadian,F. , and Noroozi,H. . "Investigating the Relationship between the Diversity of Productive Activities and Total Factor Productivity in Agriculture Sector", Agricultural Economics and Development, 25, 3, 2017, 17-40. doi: 10.30490/aead.2017.59084