The Distributions of Policy Reserves Considering the Policy-Year Structures of Surrender Rates and Expense Ratios

In this article, we examine how the policy-year structures of expense ratios and surrender rates affect the distributions of policy reserves. Our results show that a convex expense ratio curve, though reduces the mean and the uncertainty of reserves, could make the beneficial impact of surrenders on insurers become detrimental. Our results also show that the convexity of the surrender rate curve is favorable to insurers while the volatilities of surrender rates are unfavorable. We further find that neglecting the policy-year structures of surrender rates and expense ratios may result in overestimation of the mean and the uncertainty of reserves.     

The effect of an interdisciplinary STEM course on children’s attitudes of learning and engineering design skills

International Journal of Technology and Design Education - The study aimed to investigate the effect of an interdisciplinary STEM course on children’s attitudes of learning and engineering...