We present a theoretical model that enables to predict population distribution according to fertility and survival rates for each age group. Using World Bank data, we estimated the relation between fertility rate of change and survival probabilities. Our findings show that fertility rate of...

In this paper, we calculated the average daily return and the Betas of Israeli stocks for the period April 1st 2009 – April 1st 2010. The correlation coefficient between return and Beta is 0.47. Although we find that the econometric relation between return and Beta is statistically...