نتایج جستجو برای: countries ranking
تعداد نتایج: 289082 فیلتر نتایج به سال:
A fundamental switch in the fertility—development relationship has occurred so that among highly developed countries, further socioeconomic development may reverse the declining fertility trend. Here we shed light on the mechanisms underlying this reversal by analyzing the links between development and age and cohort patterns of fertility, as well as the role of gender equality. Using data from...
This paper analyses the determinants of an important component of well-being among individuals aged 50 years or older in eleven European countries: satisfaction with social contacts. We use data from the Survey of Health, Ageing and Retirement in Europe and anchoring vignettes to correct for potential differences in responses scales across countries and socio-demographic groups. On average, old...
BACKGROUND Socio-economic inequalities in health within countries are a key public health issue. It is important that we can effectively make international comparisons of the level of inequalities and assess trends over time. We investigate how the results of such comparisons can differ depending on whether inequality is quantified using the rate ratio or rate difference. METHODS We examine l...
This paper proposes a symmetry-breaking model of trade with a (large but) finite number of (ex-ante) identical countries and a continuum of tradeable goods, which differ in their dependence on local differentiated producer services. Productivity differences across countries arise endogenously through free entry to the local service sector in each country. In any stable equilibrium, the countrie...
BACKGROUND The aetiology of Africa's easterly-lying corridor of squamous cell oesophageal cancer is poorly understood. Micronutrient deficiencies have been implicated in this cancer in other areas of the world, but their role in Africa is unclear. Without prospective cohorts, timely insights can instead be gained through ecological studies. METHODS Across Africa we assessed associations betwe...
Scientific production of Iran’s scientists holds the needed potential and wealth to be the world’s reference in science and knowledge. Based on this and by following guidelines of the supreme leader of the Islamic revolution, preservation, persistence, and reinforcement of the scientific production debate has unavoidable urgency and priority in academic and scientific circles and gatherings. We...
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