主要解决项目进度计划管理中,CPM机动时间实际可使用量和使用效率问题,以及如何将对机动时间的研究从单个工序扩展到整个网络.首先,根据CPM网络计划已有的知识体系和机动时间已有的概念和性质,提出CPM机动时间可使用量的概念;其次,分析CPM机动时间可使用量与合理分配机动时间的关系,给出求解CPM机动时间可使用量的算法,并相应给出求解其最大值和最小值的算法,证明了算法的正确性;再次,通过对算法的分析,
支付工具市场的发展表现为不同支付工具间的替代.本文基于双边市场理论,针对排他性支付工具市场,构建商业利润最大化和社会福利最大化定价模型.结果显示:两种定价均对服务成本高(低)的支付工具制定更高(低)的价格;社会福利最大化定价偏向对服务成本低的支付工具制定更低的价格,且该差距随支付工具服务成本差越大而越大,当两种支付工具服务成本相同时,两种定价相同;更具倾向性的社会福利最大化定价将商业银行利润转移给
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