Partial Identification of Economic Mobility: With an Application to the United States

Abstract

The economic mobility of individuals and households is of fundamental interest. While many measures of economic mobility exist, reliance on transition matrices remains pervasive due to simplicity and ease of interpretation. However, estimation of transition matrices is complicated by the well-acknowledged problem of measurement error in self-reported and even administrative data. Existing methods of addressing measurement error are complex, rely on numerous strong assumptions, and often require data from more than two periods. In this article, we investigate what can be learned about economic mobility as measured via transition matrices while formally accounting for measurement error in a reasonably transparent manner. To do so, we develop a nonparametric partial identification approach to bound transition probabilities under various assumptions on the measurement error and mobility processes. This approach is applied to panel data from the United States to explore short-run mobility before and after the Great Recession.     

Projective Identification as a Contributor to Domestic Violence

Many explanations have been given as to why men batter. Rarely are deep unconscious intrapsychic processes identified as contributing reasons. One way that violent men may use their partner to fill emotional needs is through the primitive defense of projective identification. Projective identification may be invoked by men to induce the other partner to carry split off threatening parts of the self that are too anxiety provoking to retain. The occurrence of projective identification could therefore be an important intrapsychic and interpersonal dynamic that contributes to the escalation of tension prior to the violent episode.     

左思风力之成因初探

西晋诗人左思的诗风在西晋文坛上独树一帜，称之为“左思风力”，前人对此有较多地论述，然而就诗风形成的原因却缺乏深入地探究。本文试图从社会时代背景、家庭因素、性格特征三个方面对此加以分析，旨在能够更好地把握左思其人及其诗风。     

凯瑟琳爱情悲剧动因解析

凯瑟琳是《呼啸山庄》的女主角,凯瑟琳的爱是灵魂与肉体相脱离的情爱,充满不可调和的矛盾与冲突。她对希克厉的爱是精神之爱、灵魂之爱、自恋之爱,而对林敦的爱是肉体之爱、物化之爱、补偿之爱。凯瑟琳接受并爱着两个性格迥异的痴心汉,其对情爱的贪欲超过其心理承受的载荷,令其心理冲突绵延不辍。在两极爱欲的矛盾悖谬中,她忍受着精神的自我摧残,不只酿就了爱情悲剧,而且最终招致肉体的过早销亡。     

Estimation of Metabolic Rate Constants in PBPK‐Models from Liver Slice Experiments: What Are the Experimental Needs?

A mechanistic model is presented describing the clearance of a compound in a precision-cut liver slice that is incubated in a culture medium. The problem of estimating metabolic rate constants in PBPK models from liver slice experiments is discussed using identifiability analysis. From the identifiability problem analysis, it appears that in addition to the clearance, the compound's free fraction in the slice and the diffusion rate of the exchange of the compound between culture medium and liver slice should be identified. In addition, knowledge of the culture medium volume, the slice volume, the compound's free fraction, and octanol-water-based partition between medium and slice is presupposed. The formal solution for identification is discussed from the perspective of experimental practice. A formally necessary condition for identification is the sampling of parent compound in liver slice or culture medium. However, due to experimental limitations and errors, sampling the parent compound in the slice together with additional sampling of metabolite pooled from the medium and the slice is required for identification in practice. Moreover, it appears that identification results are unreliable when the value of the intrinsic clearance exceeds the value of the diffusion coefficient, a condition to be verified a posteriori.     

《红楼梦》80回前后死亡描写之比较

本文主要讨论的是《红楼梦》中重要人物死亡描写的前后比较,以及书中关于死亡意象描写的前后比较。得出的结论是由于作家的生死观、侧重点、创作意图的不同,前80回与后40回中死亡描写的手法是不同的。     

定期租船合同下承运人识别问题研究

在海上货物运输中，以定期租船运输货物时，无论是船东，还是承租人都可能成为承运人。如何确定海上货物运输合同责任主体是海事审判实践中亟待解决的一个理论和实际问题。该文系统分析了定期租船合同下承运人识别问题产生的渊源、承运人识别的依据及其方法，在此基础上作者提出了解决定期租船合同下承运人识别问题的初步建议。     

审视经济全球化

由于各国经济发展的不平衡,经济全球化的当代特征表现为三角化、区域一体化和跨国公司的迅速崛起。经济全球化正在改变现有政治格局,推动世界政治朝全球性方向演进并形成全球性的治理机构或协调治理形式。在以发达国家为主导、跨国公司为主要动力的经济全球化过程中,中国作为发展中国家在国际竞争方面处于弱势,这要靠全党全民运用自己的智慧和力量,利用自己已经具备的各种有利条件去应对全球化的挑战。从人类社会经济形态演进的自然历史过程看,经济全球化不过是资本主义的社会化生产和市场全球性扩张的新的历史阶段。从马克思的立场看,全球化将会是资本主义时代的终结,并为社会主义社会的到来做好准备,随全球化而来的将是一个更加美好的新世界。     

"君子"人格的现代文化透视

“君子”作为孔子创立“仁”学体系的物质载体 ,几千年来一直为人们所追求和崇拜 ,它广泛地渗透到人们的观念、行为、思维方式和情感状态之中 ,构成了中华民族的心理基因和性格特征。本文从传统“君子”人格的构成要素与特点 ,结合其对国民心理的影响 ,对之进行现代价值评估     

流行语的界说与初步描写

文章紧扣当代语言生活的现实，以一般现代汉语教材和语言学词典未列或语焉不详的流行语作为考察对象，着重论述和分析了流行语这种跨层级的语言现象的来源、表现形式及其特征，同时还剖析了目前流行语使用上的若干倾向及其原因。