We explore the significance of intra-couple and intra -household influences on three broad types of employment contracts: self-employment, performance related pay, and salaried employment. Individuals may pool income risk with their partners by holding a diversified portfolio of employment contracts, introducing intra-household risk pooling. Alternatively, employment contract matching may occur...

We investigate whether individuals’ risk preferences change after experiencing a natural disaster– specifically, the Great East Japan Earthquake in 2011. The novelty of our study is that we use panels of nationally representative surveys, and thus, we can track the changes in risk preferences of the same individuals. We find that people who experienced greater intensity of the Earthquake become...

a study was done about non-participation during phase iii of the international study of asthma and allergy in childhood (isaac iii) in valencia to determine whether the non-response rate significantly affected the results obtained in valencia. of the schools selected to participate in isaac iii, 13.3% denied not to, the main reason being they were already participated in a similar study. the is...

background : visual impairment is a very important public health problem. in iran, reports of visual impairment and blindness have been published from the urban population while the prevalence of visual impairment in the rural popu-lation has not been reported. the purpose of this study to determine the prevalence and causes of visual impairment, in a rural population in district of based on ag...

purpose : to study the age and gender specific history of ocular trauma in the population of tehran methods : using a stratified cluster sampling approach, 6,497 residents of tehran were selected. participants were transferred to an eye clinic to have complete eye examinations. during the interview, participants were asked about any history of ocular trauma, and any treatment or hospitalization...

purpose : to determine the prevalence of visual impairment, blindness, and low vision among the elderly population of sari in northern iran methods : random cluster sampling of 1,185 selected individuals over 54 years of age, of whom 79.1% participated. participants underwent eye examinations to test presenting visual acuity (va), best corrected visual acuity (bcva), and refraction. results : b...

conclusions as it was previously reported by the world health organization (who) on hav infection in the country, this study revealed a high prevalence of hav infection in mashhad. background hepatitis a virus (hav) is the most common cause of acute viral hepatitis worldwide, mostly in developing countries. objectives this population-based survey was performed to investigate hav seroprevalence ...

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several studies have been conducted in iran in order to investigate the prevalence of depression among infertile couples. however, there is a remarkable diversity among the results. this meta-analysis was conducted to estimate an overall prevalence rate of depression among infertile couples in iran.international and national electronic databases were searched up to june 2011 including medline, ...