in this paper a fractional linear programming model with maximizing the rate of return on a portfolio as its objective is presented.

as the higher investment yield of container port industry, container port industry became an important target for international investment.

由于集装箱港口业较高的投资收益率，成为国际投资的重要对象。

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software reengineering put emphasis on the rate of high investment and yields to improve the performance of legacy system.

软件再工程强调以更高的投资收益率，来提高遗产系统的性能；

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the rates of returns to both human and physical capital should be the same when the economy equilibrates.

均衡时经济中人力资本投资收益率等于物质资本投资收益率。

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the application of the method of incremental investment rate of return in decision making of multi-projects selection and optimisation

增量投资收益率法在多方案选优决策中的应用

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in order to improve the investment yield, diversity of investment currencies and instruments must be carried out.

要提高投资收益率，必须实现投资币种、投资品种的多元化，在世界范围投资于更丰富的资产。

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the marginal liquidity value of the stock is positive related to the enterprise marginal investing yield;

2边际流动性价值与企业边际投资收益率成正相关。

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lower-than-assumed real rate of return on investment

较假定实际收益率为低的投资收益率

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secondly, underwriting profit margin and investment rate of return were expounded in detail.

接下来对模型中的承保利润率和投资收益率是如何影响定价利润因子的分别进行了详细的介绍。

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maximizing the rate of return on a portfolio

极大化证券组合的投资收益率

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the ruin probabilities in compound binomial risk model with stochastic varying yields of investment

考虑投资收益率随机变化的复合二项风险模型的破产概率

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research on computing methods of the profit rate of the investment in education

教育投资收益率计算方法研究

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return on total capital investment is strongly affected by dme prices.

二甲醚的售价强烈地影响投资收益率。

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in this context, the author introduces the g-h distribution which is generally applied in the financial investing yield field and rarely in the insurance field into the earthquake loss data fitting.

g-h分布目前大多被用于金融领域，用来研究投资收益率的特征，很少被应用于保险领域。本文详细介绍了g-h分布并将其应用到保险领域对地震灾害的损失分布进行拟合。

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finally, the paper proposes solutions to improve the qdii system. from empirical analysis, we conclude that qdii can disperse risks through allocating the resources in different capital markets, get a higher rate of investment returning.

文章最后，提出了完善我国QDII制度的建议和对策，通过实证分析得出QDII能够通过在不同资本市场配置资源从而更大范围内分散风险，获得较高的投资收益率。

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usually the closing price of ipo on the open market for the first time is far higher than its issue price, which makes the investors who subscribe ipo able to acquire a paranormal rate of return, and this is so-called ipo underpricing.

通常IPO股票上市首日的收盘价要远远高于其招股发行价格，使得IPO的投资者能够获得超过正常收益的投资收益率，这就是所谓的股票IPO抑价。

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in the eva criteria, the ability to create enterprise value evaluation criteria, the key is whether more than the cost of capital, rather than investment returns, so comparison with other valuation methods, eva is more comprehensive, forward-looking rationality.

在EVA准则下，企业价值创造能力的评估标准，关键在于是否超过资本成本，而不是投资收益率，因此与其他估价方法比较，EVA更具有全面性、前瞻性和合理性。

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similarly, there is a negative relation between the buy-and-hold return and the offering price factor and the initial return factor.

相似的，发行价格因子（PRC）与初始投资收益率因子（IR）与长期股票收益率之间呈现出负的相关性。

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how do you show roi to advertisers?

Twitter如何向广告主证明投资收益率？

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multifactor model assumes that the return on investment will be influenced by various risk factors, when under this model's assumption, the return and risk reach equilibrium, the investment return of the risk asset is described by arbitrage pricing theory ( apt).

该模型假设投资收益率受到多种风险因素的影响，收益率由各风险因素溢酬的线性组合决定。当多因素模型框架下收益与风险达到均衡时，风险资产价格遵守套利定价理论。

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in this paper, the author introduced the concept of energy return on investment ( eroi) and method of calculating eroi by energy quality.

文章介绍了能源投资收益率（EROI指数）的概念&能源生产过程中能源产出和能源消耗的比值，引入了能源质量因子的概念，并以此为理论依据介绍了能源投资收益率的计算方法。

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