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Background Visual acuity, like many other health-related problems, does not have an equal distribution in terms of socio-economic factors. We conducted this study to estimate and decompose economic inequality in presenting visual acuity using two methods and to compare their results in a population aged 40-64 years in Shahroud, Iran.   Methods: The data of 5188 participants in the first phase o...

abstract governments in regional and national level try to improve economic and productivity growth by different polices. the being aware of effective factors in national and regional economic and productivity growth is essential for government success. in this paper, to being of aware determinant factors in productivity inequality, we use decomposition approach and econometric estimation for 2...

a country’s foreign policy is greatly influenced by various internal, regional, trans-regional, and international factors.  in recent years china has adopted a peaceful foreign policy.  this paper aims to analyze the continuity of china’s peaceful foreign policy in the 21st century, and identify the most influential factors of the policy.  this paper will argue that china’s peaceful foreign pol...

OBJECTIVE In light of the large number of recent studies and systematic reviews investigating the cost of RA, this article examines the methods used to assess the impact of RA on employment and work productivity, and provides an overview of the issues surrounding work productivity loss in the RA population. METHODS A review of the published literature was conducted in order to identify releva...