This part introduces the origin and development principal-agency relationship monitoring and incentive mechanism theoretic supposal theoretic model types classification to form a basic framework of principal-agency theory .

该部分主要从委托代理关系、理论 假设、理论模型、代理问题的产生与发展以及约束与激励机制等 几个方面 给出了委托代理理论的基本框架。

Then ten new real exact solitary wave solutions for then-dimension nonlinear Chaffe-Infante equation are obtained by using these formulas and a direct supposal method .

首先，利用直接 假设法，给出了一类二阶常系数非线性微分方程的一组实的显式精确解。

The event study is based on the supposal that the market is effective that is to say the stock price reflects all the known public information .

事件研究 方法是基于有效市场 假设的，即股票价格反映所有已知公共信息。