نتایج جستجو برای: genetic algorithmauto regressive distributed lag total factors productivity agriculture iran

تعداد نتایج: 2679016  

2007
ALAN mATTHEWS CAROL NEWmAN FIONA THORNE

While detailed analysis of the productivity of many sectors of the Irish economy are not possible because of a lack of data, the quality and volume of data on agricultural outputs and inputs allows such an analysis. In this chapter, a picture of the productivity performance of the Irish agriculture sector based on various different measures is presented and compared with the performance of Irel...

Journal: :Zootaxa 2013
Parisa Lotfollahi Karim Haddad Irani-Nejad Mohamad Khanjani Mohamad Moghadam Enrico De Lillo

PARISA LOTFOLLAHI, KARIM HADDAD IRANI-NEJAD, MOHAMAD KHANJANI, MOHAMAD MOGHADAM & ENRICO DE LILLO Department of Plant Protection, Faculty of Agriculture, University of Tabriz, Tabriz, Iran. E-mail: [email protected] Department of Plant Protection, Faculty of Agriculture, University of Bu-Ali Sina, Hamadan, Iran Department of Crop Production and Plant Breeding, Faculty of Agriculture, Univ...

2016
Uris Lantz Caldo Baldos Thomas W. Hertel Raymond J.G.M. Florax Nelson B. Villoria Hao Zhang Kenneth A. Foster

Baldos, Uris Lantz Caldo. Ph.D. Purdue University, December 2014. Essays on Productivity Growth in Agriculture. Major Professor: Dr. Thomas W. Hertel This dissertation aims to explore the current trends in agricultural productivity and analyse its impact on the global farm and food system. Chapter 2 in this dissertation looks at the current trends in agricultural productivity in India – one mos...

Journal: :تولید گیاهان زراعی 0

drought stress is one of the most important dangers for increasing the yield and good production of crops in iran and the world. to evaluate the genetic diversity of rapeseed genotypes, identifying the drought resistance indices and drought tolerant genotypes, 16 genotypes were tested in a randomized complete block design (rcbd) with three replications and two different water regimes (irrigated...

Journal: :چغندرقند 0
مرتضی تهامی پور دانشجوی دکتری اقتصاد کشاورزی، دانشکده اقتصاد و توسعه کشاورزی، دانشگاه تهران ایرج صالح دانشیار اقتصاد کشاورزی ، دانشکده اقتصاد و توسعه کشاورزی، دانشگاه تهران مهدی نعمتی دانشجوی کارشناسی ارشد اقتصاد کشاورزی، دانشکده اقتصاد و توسعه کشاورزی، دانشگاه تهران

the purpose of this study is measuring total factor productivity (tfp) growth of sugar beet for different provinces of iran and then decomposing it to the changes in technical change, managerial efficiency change and scale efficiency change. for this purpose we used the data envelopment analysis (dea) method and malmquist productivity index. results showed that average growth of total factor pr...

2015
Mehdi Esfandiari Neda Mehravar Hossein Motamedi Hamid Rajabi Hossein Rajaei

1Department of Plant Protection, College of Agriculture, Shahid Chamran University of Ahvaz Ahvaz, Iran; E-mail: [email protected] 2Departments of Biology, College of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran; E-mail: [email protected]; [email protected] 3Department of Agronomy and Plant Breeding, College of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran; E-m...

Journal: :Pakistan journal of humanities and social sciences 2023

Agriculture is particularly vulnerable to climate change because it faces open weather conditions. In uncontrolled circumstances, it's difficult attain better total factor productivity (TFP), which characterizes agriculture growth in an economy. The study estimated the TFP of Pakistan’s first step by employing Tornqvist- Theil index number approach for period 1990-2019. time series data thirtee...

Hossein Bakhshandeh, Mohsen Esmaeili, Sayed Abdolmajid Jalayee, Sayed Mehdi Rasoli,

Background. The sports industry plays an important role in the progress of the economy in developed countries. The role of technology is remarkable in the enhancement of the economy. Objectives. The present study investigates the effects of technology spillover on the economic growth of Iran’s sports industry through the import of intermediate and capital goods for the period from 1...

Journal: :middle east journal of digestive diseases 0
homayoon vahedi reza ansari mohammad mehdi mir-nasseri elham jafari

irritable bowel syndrome (ibs) is the most prevalent functional gastrointestinal disorder noted in the general population worldwide. its chronic nature, signs and symptoms which vary periodically from mild to severe have many negative effects on the quality of life for the sufferer; therefore the appropriate treatment of these patients is highly important. patients should be informed by their d...

Farzad Serajzadeh Maryam Shokoohi Mohammad Kavoosi Kalashami

The issue of convergence or divergence of productivity has important policy for regional poverty reduction and increasing standards of living. If productivity converges to a common level without intervention, there is little need for explicit policies in lagging regions to promote catch up. On the other hand, productivity has divergence trend, then explicit policies would be needed to prevent f...

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