城商行经营效率及其影响因素实证分析——基于53家城商行面板数据的随机前沿模型

根据2009—2011年国内53家城商行相应数据可构建计算城商行经营效率的随机前沿模型。样本城商行总资产占当年城商行总资产的比重达到了70%,样本商行分布于国内29个省、市、自治区、直辖市,由此可得出影响城商行经营效率的影响因素。实证研究结果发现:2009—2011年间,随着跨区域经营的大力推进、引进战略投资者、公司治理机制改革的深入以及资产质量控制的提升,国内城商行经营效率呈现出明显的改进趋势,第一大股东非国有股、引进战略投资者、跨区域经营、降低不良贷款率、降低第一大股东的持股比例等均对城商行的经营绩效产生显著的积极影响。     

基于贝叶斯面板平滑转换模型的房价阈值效应研究

针对经济变量之间普遍存在的非线性关系,导致线性模型拟合失效的问题,构建面板数据平滑转换模型,刻画变量之间关系的非对称性。采用贝叶斯方法进行模型的参数估计,避免非线性最小二乘算法难以收敛,参数估计不确定。通过分析模型结构,选择参数先验分布,设计相应的Metropolis-Hasting-Gibbs混合抽样算法,据此估计模型参数;在此基础上,利用省域面板数据分析房价阈值效应问题。研究结果表明:参数的动态迭代轨迹收敛,MH-Gibbs混合抽样算法能够准确地估计模型各参数,解决了非线性最小二乘无法收敛的问题,证明了贝叶斯面板数据平滑转换模型的有效性;同时也验证了房价波动的阈值效应以及房价与城市化、城乡收入差距之间的非线性关系。     

金融支持陕西省实体经济发展效率分析

在新经济背景和新时期供给侧结构改革的要求下,金融与实体经济协调发展是促进经济增长的重要举措。基于陕西省2007-2016年间实体经济融资额与实体经济增加值数据,利用DEA-Malmquist指数模型,对陕西区域金融支持实体经济发展的有效性进行测算,并分析陕西省实体经济发展效率的金融影响因素。研究发现:陕西金融支持实体经济效率总体呈增长趋势,但仍有起伏,金融支持实体经济效率波动性较大;陕西金融支持实体经济发展总体有效,各地市之间存在区域差异,企业的技术进步影响金融支持实体经济效率高低。因此,陕西金融提升支持实体经济的有效性,只有金融改革的市场化方向和实体企业创新驱动发展两条路子。     

中国经济增长与OFDI增长:机理与实证

Based on the analysis of the mechanism of the interactive relationship between China’s economic growth and outward foreign direct investment (OFDI) growth, the paper uses panel VAR model to empirically study the interactive relationship between the two with the data from 30 provinces, municipalities and autonomous regions in China from 2004 to 2015. The results of system-GMM estimation show that economic growth and OFDI growth can promote each other and the two-way interactive effects are very significant. The results above exist both in the aggregate term and in the term of labor average. It is also found that the effect of economic growth on the growth of OFDI flow is higher than the effect on the growth of OFDI stock, and the effect of the OFDI stock growth on economic growth is higher than the effect of the growth of OFDI flow on the economic growth. The results of the further investigation by considering the regional heterogeneity show that the effects of economic growth on OFDI growth are stronger in middle and western regions than that in eastern region, while the effects of OFDI growth on economic growth are stronger in eastern region than that in middle and western region. The impulse response function analysis and variance decomposition analysis consistently support the results above. The policy implications of the results are the following: When carrying out the “going out” strategy, China should depend on its own development to implement OFDI, and it is ought to promote the good interaction between economic growth and OFDI growth, and it is ought to fully consider the different development levels among different regions     

Local GMM Estimation of Semiparametric Panel Data with Smooth Coefficient Models

In this article, we consider the estimation of semiparametric panel data smooth coefficient models. We propose a class of local generalized method of moments (LGMM) estimators that are simple and easy to implement in practice. We show that the proposed LGMM estimators are consistent and asymptotically normal. Monte Carlo simulations suggest that our proposed estimator performs quite well in finite samples. An empirical application using a large panel of U.K. firms is also presented.     

Book Review: Introducing Monte Carlo Methods with R

In this article we propose a nonparametric test for poolability in large dimensional semiparametric panel data models with cross-section dependence based on the sieve estimation technique. To construct the test statistic, we only need to estimate the model under the alternative. We establish the asymptotic normal distributions of our test statistic under the null hypothesis of poolability and a sequence of local alternatives, and prove the consistency of our test. We also suggest a bootstrap method as an alternative way to obtain the critical values. A small set of Monte Carlo simulations indicate the test performs reasonably well in finite samples.     

行驶里程数对环境、交通和能源的影响——基于外部性视角的省际面板数据研究

近年来,机动车污染日趋成为中国空气污染的重要来源.选取2006-2010年中国30个省、市、自治区的面板数据,运用单位根检验、协整检验和面板数据模型等方法来研究行驶里程数对环境、交通和能源的影响.结论认为公路交通氮氧化物排放量、汽油消耗量、交通事故数与公路里程数之间存在显著的相关关系,为将行驶里程数纳入车险费率改革、开发绿色低碳车险产品提供参考.     

Tests for random time effects and spatial error correlation in panel regression models

We consider a panel model with spatial autocorrelation and heterogeneity across time. Various Lagrange multiplier and likelihood ratio test statistics are developed for testing time effects and spatial effects, jointly, marginally or conditionally. Limiting null distributions of the tests are derived. Size and power performances of the proposed tests are compared by a Monte-Carlo experiment.     

An additive–multiplicative mean model for panel count data with dependent observation and dropout processes

This paper discusses regression analysis of panel count data with dependent observation and dropout processes. For the problem, a general mean model is presented that can allow both additive and multiplicative effects of covariates on the underlying point process. In addition, the proportional rates model and the accelerated failure time model are employed to describe possible covariate effects on the observation process and the dropout or follow‐up process, respectively. For estimation of regression parameters, some estimating equation‐based procedures are developed and the asymptotic properties of the proposed estimators are established. In addition, a resampling approach is proposed for estimating a covariance matrix of the proposed estimator and a model checking procedure is also provided. Results from an extensive simulation study indicate that the proposed methodology works well for practical situations, and it is applied to a motivating set of real data.     

生产性服务业对出口贸易的影响研究

生产性服务业将人力资本和知识资本导入生产过程促进了制造业升级,其发展程度代表着一个国家或地区的现代化程度。充分有效利用服务业资源已成为工业企业提高竞争力进而扩大出口贸易的必然选择。从专业化分工、技术创新等方面探讨生产性服务业对出口贸易的影响机理,结合辽宁省生产性服务业发展状况建立面板数据模型,对其是否影响辽宁出口贸易进行实证分析,结果证实辽宁生产性服务业发展促进了出口贸易发展,交通运输、仓储及邮政和商务服务业对辽宁出口贸易的影响较为明显。据此提出发展生产性服务业以促进辽宁贸易的建议。