Optimization of Pension Asset Portfolio in Nigeria with Contributors’ Specified Return Rate

This work focuses on the optimization of investment contributions of pension asset with a view to improving contributors’ participation in achieving better return on investment (RoI) of their funds. We viewed some new regulations on Nigeria’s Contributory Pension Scheme” (CPS) from amended legislation of 2014, some of which are yet to be implemented when their regulations are approved. A mathematical model involving 5 variables, 5 inequality constraints covering regulatory limitations and limitation on scarce resource known as Asset Under Management (AUM), suggested and mathematically shown to be possible through “maximization of return irrespective of risk” while obeying all regulatory controls as our constraints optimized. Optimized portfolio using MatLab shows that the portfolio representing AES 2013 portfolio with a deficit growth of 15.75 m representing 3.27% less than the portfolio’s full growth potential within defined assumptions would have been averted if contributors actually set their targets and investment managers optimize from forecasts of future prices using trend analysis.

20世纪英国养老金制度的历史演进

英国的养老金制度酝酿于 1 9世纪末 ,建立于 2 0世纪初 ,其开始建立的标志是 1 90 8年养老金法的颁布实施。在近一个世纪的发展过程中 ,英国的养老金制度经历了免费养老金制度、交费养老金制度、与收入相联系的养老金制度以及 70年代以后的多种养老金制度改革等历史演进过程。正是经过上述几个不同阶段的发展变化 。

辽宁省企业职工养老金收支测算及对策——基于参数组合方案的分析

在人口老龄化和养老保险制度转型等多重压力下,辽宁省企业职工养老保险收支缺口出现逐年扩大趋势,制度的运行愈发困难。养老保险参保率、缴费率、替代率及退休年龄是影响养老金收支状况的重要因素。本文将以上参数组合,形成激进式和渐进式的养老保险改革方案。测算表明,两种参数组合方案尽管发挥效能的时间与程度各有不同,但都能够对弥补日益增加的养老金赤字产生明显作用,同时,为使政策更易推行和效果更加明显,也有必要采取多种辅助性措施。

日韩老龄化和养老保险制度的比较研究

从日本、韩国老龄化的进程、现状、展望,两国养老保险制度设计及困境,改革措施及其得失等方面,论述日、韩两国的经验教训,希冀对中国养老保险事业的改革、发展具备一定的借鉴价值。

公务员养老金对资本存量的影响——基于两部门OLG模型的理论分析

在很多国家,公务员和企业职工的养老保险体系都存在巨大的差距。文章用一个两部门代际交叠模型尝试从效率角度解释该现象。分析表明,当存在自愿退休和劳动生产率的年龄差异时,提高公务员的养老金给付会对资本存量带来正的影响,且这个影响随劳动生产率年龄差异的增大而增大。文章还比较了公务员养老金的并轨方案,发现建立一个高缴费高给付的公务员养老金体系要优于一个与私有部门完全相同的养老金体系。