Through the stochastic discount factor model, it is easy to understand some classical problems of modern finance, such as arbitrage pricing theory and risk neutral pricing, etc.
现代金融学的许多经典问题，如套利定价原理以及风险中性定价等都可以用随机折现因子模型理解，随机折现因子模型是资产定价模型的统一框架。
Under the classical growth model and endogenous growth model, most of the past literatures pay attention to the analysis how scale factor and supply factor determine economic growth.
在古典增长模式和内生增长模式下，以往文献多是注重规模因素和供给层面对经济增长的决定作用。
Although it analyzes urban economic growth by view of factor input in neo-classical urban economic growth model, it ignored land, which is a very important factor in urban economic growth.
新古典城市经济增长模型尽管是从要素的角度来研究城市经济增长，但它并没有将土地作为生产要素之一加以考虑。
Based on the classical EPQ model, this paper develops an EPQ model for deterioration items with different lost sale factor relative to the inventory level during shortage period.
基于短缺量部分拖后的EPQ模型，考虑需求随时间指数增长以及缺货和现货期间生产率不相同对库存管理补充策略的影响，建立了相应的生产库存模型。
Based on the classical EPQ model, this paper develops an EPQ model for deterioration items with different lost sale factor relative to the inventory level during shortage period.
基于短缺量部分拖后的EPQ模型，考虑需求随时间指数增长以及缺货和现货期间生产率不相同对库存管理补充策略的影响，建立了相应的生产库存模型。
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