In the context of the historical development of portfolio theory the authors describe a stochastic asset/liability modelling exercise for a closed pension fund portfolio, illustrating the reduction in variance of estimated future surplus which can be achieved by investment in index-linked securities. Equity investment would increase the expected level of surplus, but the outcome would be more u...

Healthcare organizations continue to make large investments in health information technology to improve quality of care and lower costs. Therefore, there is an evergrowing need to have an ever-clearer understanding of how IT investments impact these organizations. In this paper, we present an extensive review of literature on the impact of health information technology on quality. We identify a...

Modern portfolio theory(MPT) addresses the problem of determining the optimum allocation of investment resources among a set of candidate assets. In the original mean-variance approach of Markowitz, volatility is taken as a proxy for risk, conflating uncertainty with risk. There have been many subsequent attempts to alleviate that weakness which, typically, combine utility and risk. We present ...

background: unintended pregnancy (upr) with high rates of subsequent abortions remains an important problem around the world. our aim was to determine the prevalence of uprs in georgia, their outcomes, and use of modern and traditional methods of contraception in women who terminated their uprs by induced abortion (iab) and identify potentially associated factors. methods: a cross-sectional stu...

In principle, implementation of portfolio investment strategies through market orders at the NYSE open would be problematic because of execution price uncertainty. This paper measures the impact, by comparing the actual value at the end of the trading day against the value one would have obtained if it were possible to observe opening prices when submitting orders. For positively weighted portf...

We consider a group of mean-variance investors with mimicking desire such that each investor is willing to penalize deviations of his portfolio composition from compositions of other group members. Penalizing norm constraints are already applied for statistical improvement of Markowitz portfolio procedure in order to cope with estimation risk. We relate these penalties to individuals’ wish of s...

Using the language of convex analysis we describe key results in several important areas of finance: portfolio theory, financial derivative trading and pricing and consumption based asset pricing theory. We hope to emphasize the importance of convex analysis in financial mathematics and also bring attention to researchers in convex analysis interesting issues in financial applications.

Domestic investors hold a substantially larger proportion of their wealth portfolios in domestic assets than standard portfolio theory would suggest, a phenomenon called "equity home bias." In the absence of this bias, investors would optimally diversify domestic output risk using foreign equities. Therefore, consumption growth rates would tend to comove across countries even when output growth...