Gender differences in tournament and flat-wage schemes: An experimental study

We present a new experiment that explores gender differences in both performance and compensation choices. While most of the previous studies have focused on tournament vs. piece-rate schemes, the originality of our study consists in examining the gender gap in the context of a flat wage scheme. Our data indicate that females exert a significantly higher effort than men in fixed payment schemes. We find however no gender difference in performance under the tournament scheme, due to a combination of two effects. On the one hand, men more significantly increase their effort when switching from a flat wage to a tournament scheme. On the other hand, when switching from the flat wage to a tournament scheme, women have less margin to increase performance since their effort was already relatively high with a flat wage. We also find that females are more likely than males to choose a flat-wage scheme than a tournament. This gap however narrows dramatically when feedback on previous experience is provided.     

化工原理实验教学软件开发研究

使用“MicrosoftOfficeFrontPage”、“东方网页王”、“Java”、“主页秀3”等软件开发的《化工原理实验教学软件》每个教学单元包括文字、图片和影视三个部分,并都配有语音。该软件使用方便,内容丰富,并可以通过网络进行访问,几乎不受时空限制,极大地方便了化工原理实验课程的教与学。     

Diversified committees in hiring processes: Lab evidence on group dynamics

In recent years, committee quotas have been introduced to combat the underrepresentation of women in male-stereotyped environments. However, the lack of clarity surrounding in-group preferences and gender differences in group dynamics calls into question the inclusion of women as a solution to the gender gap in labour market outcomes. In this paper, I provide experimental evidence to show: a) how the gender composition of committees affects the probability of female candidates being recruited in a hiring process; and b) how men and women behave in group dynamics as a mechanism explaining the outcome of the policy. I designed a laboratory experiment in which groups of three subjects had to jointly select two candidates from a pool of six to perform a task. Female candidates’ probability of success did not improve as the number of women in the committee increased. I found that male-majority committees were the most beneficial for female candidates. In these groups, men and women exhibited a similar level of voice and influence during deliberations, proposing both male and female candidates for recruitment. Conversely, female-majority groups were the most detrimental to female candidates. Women in female-majority groups exhibited a similar level of voice, but men, who proposed more male candidates, were more influential, which limited the contribution of women. The paper suggests that having more women in the committee does not necessarily benefit female candidates and calls for caution when it comes to designing policies for equality in the labour market.     

实验市场中的股权结构、信息与控制权收益

实验室环境下的决策过程研究可以较好地考察决策变量的行为基础和动态临界值.本文以中国股市中的股权结构为背景,在实验框架下考察了股权结构、信息披露和控制权收益的关系.文章先从理论上计算股东的夏普利值并以此代表股东控制权.再分不同设置变量来实验地考察控制权收益.结果表明:(1)股东控制权越平均,控制权收益越少;大股东与小股东形成"核"联盟的机会越多,其取得控制权的机会越少.(2)信息对控制权收益的影响主要体现在信息在联盟的形成和维持中的作用.(3)大股东夏普利值的高低和信息情况决定了联盟的方式.(4)控制权溢价并不一定就是控制权收益,也许只是大股东为防止自身利益被侵害而支付的成本.(5)信息不完全不一定是坏事,部分信息的隐含更能增加公司的分配效率.     

《传感器与检测技术》课程教学模式创新探讨

传感器与检测技术作为一门专业应用性课程,其理论在工业制造及科研领域中均起着技术导向性作用。针对综合性强的课程特点,以及传统教学方式在教学中凸显的问题,文章着重从理论教学和实验教学两方面提出了教学模式的创新,并对改革实施效果进行了分析总结。     

基于正交试验的间歇传动链动力学仿真研究

以间歇传动链为研究对象,建立了该系统的虚拟样机。运用正交法设计试验,选择输入轴转速、导轨材料阻尼系数、链条和导轨之间的库仑动摩擦系数、预紧弹簧刚度和集中质量共5个因素作为试验参数,以链条附件加速度值作为振动指标,进行了间歇传动链的动力学仿真研究。     

中学化学实验的绿色设计

本文以绿色化学思想为指导 ,对现有的几个中学化学实验进行了绿色设计 ,解决了实验所带来的环境污染问题 ,通过绿色实验 ,提高学生环境保护意识。     

设计性物理实验的探索与实践

结合辽宁工学院物理实验教学改革实践,从设计性物理实验的基础要求、层次设计、教学组织方式等方面初步探讨如何开展设计性物理实验。     

论高校相关学科开设《数学实验》课程

论述了高校数学教育面临的新形势和相关专业开设《数学实验》课程的特点及重要意义 ,以及《数学实验》课程的基本内容 ,并着重指出了开设此课程必须注意的若干问题 ,即力量性原则、实用性原则、趣味性原则等。     

产后康复宁对小鼠毒性LD_(50)测定

产后康复宁煎剂对小白鼠急性毒性试验结果,LD_(50)为51.286±0.578g/kg。实验结果表明,产后康复宁毒性较小,为低毒无害之品,可应用于临床。