【摘要】 从定期定额投资的定义出发,对定期定额投资策略进行了数理分析,得到其收益率公式,总结了影响定期定额投资策略收益率的因素.通过对案例的实证分析,归纳出定期定额投资方式下确保获利的投资策略:寻找成长性良好的公司、按内在价值选择低成本股票、在跟踪公司成长性动态的基础上坚持长期投资.一般情况下定期定额投资方式不一定能确保获利,本文为采用定投方式进行股票投资的投资者提供了确保获利的理论依据和投资策略.更多还原

【Abstract】 Based on the definition of dollar-cost averaging,the investment strategy was analysed quantitatively.The expression about the rate of stock return was achieved,and the main influence factors of stock yield were summarized through mathematical analysis.The investment strategy ensuring profit in the way of the dollar-cost averaging was concluded: finding the company with well growth,choosing the security with lower costs according to the intrinsic value,and persevering in long-term investment by following the trends of the company growth.An empirical analysis has been conducted to verify the credibility of these principles.Generally,dollar-cost averaging can not always assure the profit,but it provides the stock investor with an investment strategy to guarantee profit.更多还原