China’s first priority in post-war state building: A wealthy state,or a strong army?

This analysis examined causal links in China’s defence–growth nexus in 1960–2016. The results show that better growth significantly reduces military-civilian ratio and propels military reforms. The unidirectional threshold causality from growth to defence shows that the military impact on a positive change in China’s growth is little in the long term. Conversely, the growth impact of a positive change in defence has accelerated after it reaches the threshold year in 1987. This finding explains why Chinese economy stagnated when defence was prioritised and why China has risen dramatically in the Far East after three decades of fast economic growth.     

规模的门限效应、综合化经营与我国商业银行系统性风险

综合化经营已经成为我国商业银行应对传统业务收入比重不断降低、谋求突破性发展的重要战略。现有研究常采用非利息收入占比作为综合化经营程度的测量指标，这种做法具有明显的技术缺陷。本文将非金融企业产品多样化熵的测量指标引入到商业银行综合化经营分析，较好地解决了综合化经营程度的测量问题。基于宏观审慎与微观审慎相结合的监管理念，本文在利用成分期望损失方法测量商业银行层面系统性风险基础上，借助于动态面板门限模型重点探讨并识别了商业银行规模的门限效应，并借此区分不同的机制状态来分析综合化经营对商业银行系统性风险的影响作用。研究结果表明：综合化经营对于我国商业银行系统性风险的影响作用具有规模的门限效应，表现为规模小的商业银行开展综合化经营会降低系统性风险，规模大的商业银行开展综合化经营会增加系统性风险。     

Ordered multivariate extremes

Multivariate extreme value models and associated statistical methods are developed for vector observations whose components are subject to an order restriction. The approach extends the multivariate threshold methodology of Coles and Tawn, Joe and co-workers and Smith and co-workers. The results are illustrated by an analysis of extreme rainfalls of different durations, and by a study of the problem of linking a long series of daily rainfall extremes with a partially overlapping shorter series of hourly extremes.     

“法官后语”的效用分析——以“成本”和“收益”为视角

"法官后语"是司法裁判文书改革进程中出现的新生事物,一些学者认为"法官后语"具有案结事了,实现社会和谐的功能,因此被当作是司法裁判文书创新的典范。但是一系列的收益要考虑成本的增加以及理想中的收益能否转化为现实中的收益。此外,"法官后语"是否符合司法裁判文书改革的方向也值得商榷,笔者重点探讨以上几方面的问题。     

Sharp Threshold Detection Based on Sup-Norm Error Rates in High-Dimensional Models

We propose a new estimator, the thresholded scaled Lasso, in high-dimensional threshold regressions. First, we establish an upper bound on the ?_∞ estimation error of the scaled Lasso estimator of Lee, Seo, and Shin. This is a nontrivial task as the literature on high-dimensional models has focused almost exclusively on ?₁ and ?₂ estimation errors. We show that this sup-norm bound can be used to distinguish between zero and nonzero coefficients at a much finer scale than would have been possible using classical oracle inequalities. Thus, our sup-norm bound is tailored to consistent variable selection via thresholding. Our simulations show that thresholding the scaled Lasso yields substantial improvements in terms of variable selection. Finally, we use our estimator to shed further empirical light on the long-running debate on the relationship between the level of debt (public and private) and GDP growth. Supplementary materials for this article are available online.     

Status Traps

In this article, we explore nonlinearities in the intergenerational mobility process using threshold regression models. We uncover evidence of threshold effects in children's outcomes based on parental education and cognitive and noncognitive skills as well as their interaction with offspring characteristics. We interpret these thresholds as organizing dynastic earning processes into “status traps.” Status traps, unlike poverty traps, are not absorbing states. Rather, they reduce the impact of favorable shocks for disadvantaged children and so inhibit upward mobility in ways not captured by linear models. Our evidence of status traps is based on three complementary datasets; that is, the PSID, the NLSY, and US administrative data at the commuting zone level, which together suggest that the threshold-like mobility behavior we observe in the data is robust for a range of outcomes and contexts.     

我国通货膨胀率非线性特征研究

 本文应用带单位根的门限自回归模型，对我国1990年来以来通货膨胀率的动态路径进行了模拟分析。估计和检验发现了我国通货膨胀具有明显的非线性特征，模型较好地拟合了通货膨胀的动态调整过程。我国通货膨胀调整存在减速通货膨胀状态、适中通货膨胀状态和加速通货膨胀状态三个区制。适中通货膨胀状态是一个平稳的自回归过程，减速通货膨胀状态、加速通货膨胀状态则是具有单位根的自回归过程，具有自我加速的作用。在不同的区制下，通货膨胀率均有较高的持久性，但中间状态的持久性明显低于其他两种状态。     

高原山区人口分布特征及其主要影响因素——基于毕节地区的Panel Data计量模型分析

本文基于1987～2007年毕节地区八个县市经济、社会和资源环境方面的面板数据,考察了资源环境、经济水平和社会发展等因素对毕节人口分布变动的影响。研究发现,毕节各县市的人口总量和人口密度稳步增加,呈现协同式的增长态势,但各县市之间增长速度快慢不一,显示了区域间的差异;自然环境因素对人口地域分布变动的影响日趋减弱,但是减小的幅度并不大,说明了自然环境因素对人口分布变动的影响是根深蒂固的;经济水平和社会发展因素对人口密度变动的影响越来越大,其中尤以人均GDP和医疗条件变量更为显著;就人口密度的动态变化影响而言,除了受资源环境、社会经济发展因素的共同影响之外,毕节各个县市还表现出其个体显著差异的特征。     

Between group variance component interval estimation for the unbalanced heteroscedastic one-way random effects model

The studied topic is motivated by the problem of interlaboratory comparisons. This paper focuses on the confidence interval estimation of the between group variance in the unbalanced heteroscedastic one-way random effects model. Several interval estimators are proposed and compared by means of the simulation study. The most recommended (safest) is the confidence interval based on Bonferroni's inequality.