Shall we follow the money? Anti-mafia policies and electoral competition

Building upon the evidence that the mafia increases the degree of vote concentration, we use data on regional elections in Sicily to estimate the impact of anti-mafia policies on electoral competition. We find robust evidence that the reassignment for social purposes of property and assets seized to the mafia reduces the degree of electoral concentration. This result supports the hypothesis that policies that create social value, such as the reallocation to social-driven organizations, are more effective than those targeted to public and political institutions.     

社区矫正心理干预队伍建设探索

社区矫正心理干预队伍建设是促进社区矫正工作快速高效发展的重要议题之一。社区矫正心理干预队伍应具有自己独特的素质要求,在构成上应基于现有的社区矫正工作队伍结构,由司法所工作人员、相关社会团体和社会志愿者组成,对三者在心理干预工作中的角色和作用应予以明确。     

民国初期全国性教育团体群落论

民国初期,以全国教育会联合会、中华职业教育社和中华教育改进社等为代表的全国性教育团体纷纷涌现并逐渐群落化。他们顺应时代的要求而产生,以不同定位满足教育界的不同需要;他们集中了教育界的优秀人物、当时著名教育家构成的群体成为社团群落的核心领导力量;他们都在不断的自我调适中找到了发挥作用的着力点,也形成了各自的特色,充分发挥了教育社团群落的社会作用。     

Regularization and variable selection via the elastic net

Summary.  We propose the elastic net, a new regularization and variable selection method. Real world data and a simulation study show that the elastic net often outperforms the lasso, while enjoying a similar sparsity of representation. In addition, the elastic net encourages a grouping effect, where strongly correlated predictors tend to be in or out of the model together. The elastic net is particularly useful when the number of predictors ( p ) is much bigger than the number of observations ( n ). By contrast, the lasso is not a very satisfactory variable selection method in the p ≫ n case. An algorithm called LARS-EN is proposed for computing elastic net regularization paths efficiently, much like algorithm LARS does for the lasso.     

Why do American Indians vote Democratic?

We examine the relationship between a relatively large population of American Indians in eastern Oklahoma and the slow pace of that region's partisan realignment. With a 2012 exit poll, we empirically examine whether American Indians’ cultural ties and their socio-economic characteristics affected their vote choices. Because of their greater poverty, American Indians are more economically progressive and vote more Democratic than their white counterparts.     

台州方言在吴语中的内外关系

自20世纪80年代起,台州方言在吴语中的分片问题上一直处于游移状态。文章通过台州方言内部各点与南、北部吴语进行最具代表性的语音、词汇、语法的特征项的比较,以及地理位置和历史沿革的分析,表明台州方言与南部吴语的相似度超过了北部吴语。台州方言在吴语中是应该自成一片的。如果非得对吴语进行＂非南即北＂的划分的话,那么,台州方言属于南部吴语为佳。     

Grouping Variable Selection by Weight Fused Elastic Net for Multi-Collinear Data

In this article, we consider the problem of variable selection and estimation with the strongly correlated multi-collinear data by using grouping variable selection techniques. A new grouping variable selection method, called weight-fused elastic net(WFEN), is proposed to deal with the high dimensional collinear data. The proposed model, combined two different grouping effect mechanisms induced by the elastic net and weight-fused LASSO, respectively, can be easily unified in the frame of LASSO and computed efficiently. The performance with the simulation and real data sets shows that our method is competitive with other related methods, especially when the data present high multi-collinearity.     

户主意志主导“海选”分析——以曲陂村为个案研究

村委会直接选举亦称“海选”，指在选举过程中，不预先设定候选人，由选民按照相关规则进行公决的政治制度。长期以来，学界一直认为地方政府的行政能力和村庄的宗族势力在影响着这一中国农村民主制度的成长。而本文却从实证主义出发，从目前学界忽视的一个理论视角——户主意志主导了“海选”，透过“海选”中的户主意志形成的政治的、经济的原因，发现户主意志是为了自身的家户利益而控制手中的选票，这种因个人专断而流失公共权利的行为对农村民主制度建设带来了不得后果。而改变此现状的政治路径是推进农村民主现代化和民主社会化。     

股权相对分散化趋势下双层股权制度的适用问题

双层股权制度有助于改善缺乏弹性的股权结构,保障公司创始人对公司管理权的控制。由于违反了“一股一权”原则,双层股权制度造成公司管理权与公司现金流量请求权的分离,可能诱发更大的公司道德风险,使中小股东的权益保护面临更为严峻的挑战。当前公司股权结构呈现出相对分散化的大趋势,使中小股东进行联合维权的难度进一步加大,有必要完善双层股权制度中保护中小股东的相关规范,切实保障中小股东的合法权益。