What is algorithmic governance?

This article contributes a coherent framework to the rich literature emerging in the field of algorithmic governance while also resolving conflicting understandings. Tracing the history of algorithmic governance to the broad architecture of the universal Turing Machine, the article identifies a common thread of critical concern in the literature on algorithmic governance: the growing institutional capabilities to move contestable issues to a space of reduced negotiability, raising questions of social asymmetry, inequity, and inequality. Within the social context of algorithmic governance, the article highlights three general areas of concern where the social negotiability of processes is threatened: the problem of power (surveillance), discrimination (social bias), and identification (system identity).     

组内相关系数的理论基础及建模应用

对用于测度数据可靠性的统计指标组内相关系数进行了理论基础论证、建模步骤分析、软件实现说明和实际数据统计分析;对组内相关系数建模中涉及的方差分析模型选择、相对一致性和绝对一致性区分、分析结果解释等都进行了详细说明。     

中国区域生态效率的时空演变和提升机制

利用改进的数据包络分析模型测度2000年以来30个省（市）跨期可比的生态效率,考察其时空演变特征, 基于空间杜宾模型分析各类因素影响生态效率的直接效应和空间溢出效应。研究发现：区域生态效率呈空间集聚态势,具有路径依赖特征;专利授权总数和资本劳动比以及外商直接投资均具有积极的直接效应,且对邻近区域具有正向空间溢出效应;城镇化的各类效应均不显著,以原燃料和动力价格指数代表的价格机制、企业研发人力投入占比反而对本地生态效率有显著负向影响。建议：以生态效率为核心建立区域考核约束机制,在提升城镇化质量、改革资源价格形成机制、优化创新投入结构等的同时,还需重视各类机制和结构的协同创新,进行系统化设计和差异化改革。     

考虑政府补贴的排放依赖型生产优化

政府在追求经济增长的同时还兼顾环境效益。为探讨政府的现金补贴政策对排放依赖型生产商的决策以及对环境效益的影响作用,构建政府的现金补贴函数。结果表明:（1）排放依赖型生产商会根据政府的补贴程度在3种排放权获取渠道（政府分配的配额、自身的排放处理或市场购买）间进行选择;（2）随着现金补贴政策的推出,环境效益得到明显提升,且提升空间与政府可调控的补贴参数紧密相关。通过数值分析进一步说明了模型的应用。     

Two-stage Adaptive Designs in Nonlinear Mixed Effects Models: Application to Pharmacokinetics in Children

Nonlinear mixed effects models (NLMEM) are used in pharmacokinetics to analyse concentrations of patients during drug development, particularly for pediatric studies. Approaches based on the Fisher information matrix can be used to optimize their design. Local design needs some a priori parameter values which might be difficult to guess. Therefore, two-stage adaptive designs are useful to provide some flexibility. We implemented in the R function PFIM the Fisher matrix for two-stage designs in NLMEM. We evaluated, with simulations, the impact of one-stage and two-stage designs on the precision of parameter estimation when the true and a priori parameters are different.     

Parenting Black children in White spaces: Skilled African migrants reflect on their parenting experiences in Australia

This paper employs a critical race theory (CRT) perspective to probe the experiences of skilled African migrants parenting Black children in Australia, a predominantly White country. Two key themes emerged from this study: (1) the need to explicitly teach children about race and racism and to foster positive racial identities and (2) the complexities of navigating tensions between ‘African’ and ‘Western’ cultural values. Participants demonstrated high levels of awareness of intercultural parenting approaches and a desire to blend the best aspects of African and Australian cultural values in their own parenting practice. A significant paradox was also apparent in the tension between parental desires to inculcate pride in African ancestry and culture, while simultaneously encouraging children to ‘curate’ their blackness to minimize experiences of racialization. Social workers in Australia often play a critical role in the lives of migrant families as they support them to negotiate transitions in parenting contexts. Although this paper only offers a perspective on the parenting experiences of skilled African migrants and how they creatively manage the tensions and change emerging from this process, we suggest that this understanding helps to expand knowledge on the complexity of parenting in multicultural, transcultural and intercultural contexts.     

Economic distress and health: A fixed effects analysis of low‐income persons in Singapore

Using fixed effects regressions, this study examined the transactional effects of different types of economic status on the physical and mental health of low‐income persons in Singapore. Among the economic variables considered, unemployment and arrears had the most significant effects. This signals the physical and psychological distress of being out of work and possessing arrears while income is low. The insignificant effects of poor health on household earnings suggest possible earnings supplementation by other household members. The findings imply the fruitfulness of dually improving employment prospects and health, work activation that takes into consideration mental health effects, increasing affordability of health services in liberal welfare systems, improving mental bandwidth through reducing arrears accounts, and short lag time from application to receipt of assistance. These implications point to a larger question on health and welfare systems in an increasingly uncertain economic environment for households in poverty. Key Practitioner Message: ? Employment and health are inter‐related: employment assistance incorporating physical and mental health interventions and vice versa can be more effective than either alone; ? Compared with decreasing arrears amounts, reducing the number of arrears can more effectively relieve mental distress; ? Effects between economic distress and health materialise quickly; minimising the lag time between application and receipt of assistance will provide great relief.     

Model selection for logistic regression via association rules analysis

Interaction is very common in reality, but has received little attention in logistic regression literature. This is especially true for higher-order interactions. In conventional logistic regression, interactions are typically ignored. We propose a model selection procedure by implementing an association rules analysis. We do this by (1) exploring the combinations of input variables which have significant impacts to response (via association rules analysis); (2) selecting the potential (low- and high-order) interactions; (3) converting these potential interactions into new dummy variables; and (4) performing variable selections among all the input variables and the newly created dummy variables (interactions) to build up the optimal logistic regression model. Our model selection procedure establishes the optimal combination of main effects and potential interactions. The comparisons are made through thorough simulations. It is shown that the proposed method outperforms the existing methods in all cases. A real-life example is discussed in detail to demonstrate the proposed method.     

Supplementary test procedures for overall treatment effect

Two tests are proposed for the nullity of the overall mean parameter. Simulation results are used to compare the empirical type I error rates of the tests and two other well-known tests from the literature. An example is given to demonstrate the application of the procedures.     

A note on fiducial generalized pivots for in one-way heteroscedastic ANOVA with random effects

The paper deals with generalized confidence intervals for the between-group variance in one-way heteroscedastic (unbalanced) ANOVA with random effects. The approach used mimics the standard one applied in mixed linear models with two variance components, where interval estimators are based on a minimal sufficient statistic derived after an initial reduction by the principle of invariance. A minimal sufficient statistic under heteroscedasticity is found to resemble its homoscedastic counterpart and further analogies between heteroscedastic and homoscedastic cases lead us to two classes of fiducial generalized pivots for the between-group variance. The procedures suggested formerly by Wimmer and Witkovský [Between group variance component interval estimation for the unbalanced heteroscedastic one-way random effects model, J. Stat. Comput. Simul. 73 (2003), pp. 333–346] and Li [Comparison of confidence intervals on between group variance in unbalanced heteroscedastic one-way random models, Comm. Statist. Simulation Comput. 36 (2007), pp. 381–390] are found to belong to these two classes. We comment briefly on some of their properties that were not mentioned in the original papers. In addition, properties of another particular generalized pivot are considered.