Introduction: The theory of value of children refers to the needs which children provide for their parents. Considering the close relationship between the value orientation of people with the decisions in organizing life and forming a family, including having children, and according to decreased fertility rate in Iran, the present study was performed with aim of intergenerational comparison of ...

the purpose of the present study is to investigate the relationship between intellectual capital (human capital efficiency, customer capital efficiency, and structural capital efficiency) and economic value added of the listed companies on the tehran stock exchange (tse). the population includes 39 firms selected through systematic sampling. the data is collected from the audited financial stat...

abstract since about 34% of areas under rice cultivation in whole country is attributed to gilan; in this study we pay attention to some economical dimensions, especially economic values of inputs in this region. data were collected from 80 rice producers in 2007-2008. consider to importance the parametric approach in production structure and factors demand, applying seemingly unrelated regress...

BACKGROUND Nearly 40 years of research provides an extensive body of evidence about human health, well-being, and improved function benefits associated with experiences of nearby nature in cities. OBJECTIVES We demonstrate the numerous opportunities for future research efforts that link metro nature, human health and well-being outcomes, and economic values. METHODS We reviewed the literatu...

In the past few years, a fairly substantial literature has emerged addressing the phenomenon of global value chains (GVCs). While one can find various definitions of GVCs, the simple concept proposed by Lunati (2007) seems to capture the spirit of most definitions. Namely, GVCs are international supply chains characterized by fragmentation of production activities across sites and borders. In e...

manufacture of coke, refined petroleum products and nuclear fuel is one of the isic (international standard industrial classification of all economic activities, rev.2) that produced 8.5 percent of industry value-added in iran in 2007. isfahan, tehran, khuzestan, hormozgan, and markazi provinces accounted for 90 percent of the value added in this sector. to determine competitive advantage in th...