从性别平等视角看“关爱女孩”行动

"关爱女孩"行动实施以来,其政策效果究竟如何,课题组经过调查之后认为,尽管"关爱女孩"行动起了一定的遏制作用,但它并未触动问题的根本,人们的生育观念并没有真正改变,男孩偏好依然严重.应基于性别平等的观点,从制度上着手改变男女不平等的根源,进而引导人们真正做到"生男生女顺其自然".     

The Bubble Game: An Experimental Study of Speculation

We propose a bubble game that involves sequential trading of an asset commonly known to be valueless. Because no trader is ever sure to be last in the market sequence, the game allows for a bubble at the Nash equilibrium when there is no cap on the maximum price. We run experiments both with and without a price cap. Structural estimation of behavioral game theory models suggests that quantal responses and analogy‐based expectations are important drivers of speculation.     

幸福感的城乡差异分析——基于中国CGSS2008的调查数据

幸福感是人们对主观生活质量进行的一种情感性评价,是满意感、快乐感和价值感的有机统一。本文在文献评述及概念界定的基础上,结合《中国综合社会调查(CGSS)》(2008年)提供的数据,从自我期望体验、身心健康体验、心态平衡体验等三个层次上深入分析我国城乡居民幸福感之间存在的差异。通过对分类变量进行有序逻辑斯蒂回归,发现城乡居民幸福感差异与以往的研究结论不同,即农村居民幸福感不高于城镇居民。同时,简要分析这种现象产生的原因并提出相关的对策建议。     

论法治与澳门博彩业之理性预期

将新制度经济学关于制度与时间进程的分析方法,引入对＂赌权开放＂后的澳门博彩业对于澳门经济活动影响的考察,具有特殊意义。通过讨论博彩制度与财富增长之间的关系,可以看到,澳门博彩业在打破垄断引入竞争后,目前澳门博彩业带来的＂经济神话＂必然会破灭,因此关键仍然是需要加强＂法治＂,将这一产业纳入法律监管的轨道。     

商品房降价补差广告：要约,抑或要约邀请

伴随限房、限贷、房产税等政策出台,我国商品房市场价格一直涨跌不明。商品房降价补差广告引起不少争议：购房者认为这是商家的承诺,在房屋降价时应当兑现;房产商仅将其视作宣传手段,不承担任何责任。降价补差广告的特殊性决定需要借助理性人客观评价标准分析法律属性。文章建议,在限制降价补差广告的基础上,将其定性为要约列入买卖合同,并明确其与欺诈性广告的区别,以保护消费者的信赖利益以及合理预期,促进商品房市场良性发展。     

Almost Periodic Solutions for Stochastic Differential Equations Driven By G-Brownian Motion

In this paper, we introduce the concept of the p-mean almost periodicity for stochastic processes in non linear expectation spaces. The existence and uniqueness of square-mean almost periodic solutions to some non linear stochastic differential equations driven by G-Brownian motion are established under some assumptions for the coefficients. The asymptotic stability of the unique square-mean almost periodic solution in the square-mean sense is also discussed.     

A characterization based on conditional expectations

We obtain the necessary and sufficient conditions so that any real function (x) is the conditional expectation E(h(X)/X≥x) of a random variable X with continuous distribution function, where h is a given real, continuous and strictly monotonic function.     

The Econometrics of Piecewise-Linear Budget Constraints

In this article maximum likelihood techniques for estimating consumer demand functions when budget constraints are piecewise linear are exposited and surveyed. Consumer demand functions are formally derived under such constraints, and it is shown that the functions are themselves nonlinear as a result. The econometric problems in estimating such functions are exposited, and the importance of the stochastic specification is stressed, in particular the specification of both unobserved heterogeneity of preferences and measurement error. Econometric issues in estimation and testing are discussed, and the results of the studies that have been conducted to date are surveyed.     

Two-Step Estimation of Incomplete Information Social Interaction Models With Sample Selection

ABSTRACT

This article considers linear social interaction models under incomplete information that allow for missing outcome data due to sample selection. For model estimation, assuming that each individual forms his/her belief about the other members’ outcomes based on rational expectations, we propose a two-step series nonlinear least squares estimator. Both the consistency and asymptotic normality of the estimator are established. As an empirical illustration, we apply the proposed model and method to National Longitudinal Study of Adolescent Health (Add Health) data to examine the impacts of friendship interactions on adolescents’ academic achievements. We provide empirical evidence that the interaction effects are important determinants of grade point average and that controlling for sample selection bias has certain impacts on the estimation results. Supplementary materials for this article are available online.