Sources of Productivity Growth in rainbow Trout Aquaculture in Iran: Technical Efficiency Change or Technological Progress?

Hassanpour, Behrooz and Ismail, Mohd Mansor and Mohamed, Zainalabidin and Kamarulzaman, Nitty Hirawaty (2010) Sources of Productivity Growth in rainbow Trout Aquaculture in Iran: Technical Efficiency Change or Technological Progress? Aquaculture Economics & Management, 14 . pp. 218-234. ISSN 1365-7305

Full text not available from this repository.


This study investigates the sources of total factor productivity (TFP) growth in rainbow trout production in Iran using data envelopment analysis (DEA). The Malmquist index is then employed to decompose the TFP growth into technical efficiency change and technological progress. We utilized panel data of 207 trout farms in the country over a 5-year period from 2003 to 2007. The results of this study revealed that TFP growth of rainbow trout farming has an increasing trend over the period at an average annual rate of 3.7%. The trend of cumulative technological change is negative and tends to be contrary to cumulative technical efficiency change. Although there is no technological change or innovation on trout farming, the technical efficiency change was found to be the sole source for TFP change, whereas the mean of technical efficiency was estimated to be about 66%. Therefore, there is still a great relative potential for increasing trout production through improvement in managerial efficiency as well as technological progress. The study suggests that Iran also has considerable room to enhance trout aquaculture’s TFP growth by shifting the production frontier with adoption of new technologies and improving innovation.

Item Type:Article
Keyword:DEA, Malmquist index, rainbow trout, technical efficiency, technological changes, TFP growth
Faculty or Institute:Faculty of Agriculture
Publisher:Taylor & Francis Group
DOI Number:10.1080/13657305.2010.503474
ID Code:12038
Deposited By: Norhazura Hamzah
Deposited On:25 Apr 2011 07:21
Last Modified:25 Apr 2011 07:23

Repository Staff Only: Edit item detail

Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.