This paper explores how demographic diversity in top level management affects firm financial performance. Top level management refers to both top management team and board of directors. Thus, the purpose of this paper is to empirically examine the effect of demographic diversity on top management team and boards of directors with regard to firm financial performance. This paper uses both financ...

This paper investigates the role of women’s education in the transition to the second child using data from the 1997 German micro-census. We begin our analysis with a simple model, which shows a positive effect of woman’s education on the transition rate to the second child for West German women. We argue that this effect is most likely confounded by various factors. Firstly, we assume that the...

background and aims: according to different reports about the demographic characteristics of patients with acute myocardial infarction in iran, this study performed to determine the average age of morbidity and mortality from ami and its changes over time. methods: a hospital-based retrospective cohort study (historical) including all patients with acute myocardial infarction admitted to hospit...

background: fertility as one of the factor affecting population growth itself is affected by various factors. therefore, identifying factors which can influence this component is very vital. the purpose of this study was comparative investigate fecundity rate of 15-49 year old and married women under imam-emdad-committee and rehabilitation organizations’ protection and 15-49 year old women who ...

objectives: the object of this research was to investigate the «quality of life» and relation to demographic characteristics in elderly peopel of tehran. methods & materials: the method of this research was a descriptive-correlation. in this research 243 of elder were selected with accessible sampling from people who referred to elder centers, cultural centers, and public parks in deferent dist...

aim and background: the purpose of this study was to compare patients with functional gastrointestinal disorders (fgid) and normal persons in terms of alexithymia, severity of gastrointestinal symptoms, and demographic variables. methods and materials: this causal-comparative research included 129 fgid patients who were referred to a psychosomatic disorders clinic in isfahan, iran. a matched gr...

We extend the framework of Rios-Soto et al. (Contemporary Mathematics, 2006, 410, 297) to include both compensatory (contest competition) and overcompensatory (scramble competition) population dynamics with and without the Allee effect. We compute the basic reproductive number R0, and use it to predict the (uniform) persistence or extinction of the infective population, where the population dyn...