the purpose of this article is the measurement of technical efficiency and returns to scale using data envelopment (dea) approach. in this study, we have measured efficiency quantity and economies of scale for state owned insurance and private companies for 1384-1385 periods. the results reveal that in the dea with the assumption of variable returns to scale, iran, tosee and razi companies have...

the purchase of insurance may cause the insureds to increase the costs of insurance companies, compared to their estimation of costs. if after the demand of insurance services, the loss ratio of insurance companies increases because of consumer behavior, moral hazard will be evident. in this paper, after introducing the literature, the presence of moral hazard in iran insurance company is teste...

Facing the trend of increasing population, how to increase maize grain yield is a very important issue ensure food security. In this study, 28 nationally approved hybrids were evaluated across 24 different climatic conditions for two consecutive years (2018–2019). The purpose study was select high-yield with stable genotypes and identify agronomic traits breeding program improvement. results sh...

this research was investigated to analyze genotype × environment (ge) interaction for grain yield in durum wheat multi-environment trials (met) conducted in dryland agricultural research stations (dari) using gge (g + ge interaction) biplot methodology and joint regression analysis (b +  s2di). the environment, ge interaction and genotype effects were accounted for 84%, 7.7% and 2.3% of total s...

<em>Shallots are one of the commodities with high economic value. This study aims to determine (1) effect each dose and genotype sulfur on growth yield shallots, (2) interaction tested genotypes comparison varieties. research was carried out from August November 2019 at screenhouse Faculty Agriculture, Jenderal Soedirman University, Grendeng Village, North Purwokerto District, Banyumas Re...

The impact of three levels of sea salt (0.0, 8.0, and 16.0 mS/cm2) on six varieties of soybean (Crawford, G21, G22, G35, G82, and G83) was studied. Growth criteria, photosynthetic pigments, soluble sugars, soluble protein, free amino acids, free proline, and protein profile of soybean varieties were investigated under sea salt stress. Results of this study showed a considerable decrease in grow...