追加成本

Project cost includes direct cost, other direct cost, worksite expense, indirect cost and nonproduction expense.

工程成本包括直接费、其他直接费、现场经费、间接费和非生产费用支出；追加价格包括设计变更、施工索赔以及区域内滚动发展的其他项目投资；创优增量成本包括质量、安全、工期、环保、文明施工等增量成本。

In Ricardian Model, if we measure the environmental cost with the additional labor cost, we will find that the introduction of environmental technology and environmental cost will correct the traditional pattern of comparative advantage.

在李嘉图模型中，若将环境成本用追加的劳动投入来衡量，可以发现，环境成本的引入将修正传统的比较优势格局。

Through the comparison of different conditions in multi-angle repeated test, we observe the disaccording path of risk preferences. The main content of this thesis are as follows. Firstly, we design 2 sessions of experiments to find the impact of the softening budget constraint and the form of endowment on the risk preference. Besides, this thesis also includes several experimental comparative studies, focusing on the dynamical inconsistency of risk preference as well as its drifting path.

主要包括：首先设置预算软约束与风险偏好基础实验，考察影响投资者决策的主要因素，观测预算约束的软化和初始禀赋形式，对投资者预期及风险偏好的影响；其次，设置多期平面投资下的风险偏好实验，考察风险偏好是否存在着动态不一致现象，以及不同被试者的风险偏好漂移路径；最后，设置动态追加投资下的风险偏好实验，观测沉没成本、及与预算软约束的双重作用对风险偏好动态变化的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。