艾森豪威尔政府亚洲政策的形成

朝鲜战争结束后 ,艾森豪威尔政府对美国的亚洲政策进行了多方面的调整。 1954年 ,美国国家安全委员会制定的 542 9/2号文件是新的亚洲政策的纲领。与杜鲁门政府的亚洲政策相比 ,艾氏政府的新政策体现出来的最大特点是 ,在美国亚洲遏制战略中中国已被看成是美国的主要敌人。在实践方面 ,新政策也体现出许多新的特征 ,如美国提出了建立“西太平洋集体防务体系”及“亚洲自由国家经济集团”的构想     

S—完全正则与S—完全正规空间

文章引入了S－完全正则（S3．5）空间与S－完全正规（S5）空间的概念,讨论它们各自的特征性质以及与其他Si－空间的相互关系。     

维生素B_2的伏安特性研究

维生素B2 在 0 1mol/LB R缓冲溶液 (pH4.5 6 )中 ,用循环伏安法得到一对氧化还原峰。峰电位Epc=- 0 .34 0V ,Epa=- 0 .312V(vs.SCE)。实验表明 ,VB2 在玻碳电极上的电极过程为一受吸附和扩散同时控制的准可逆过程。测得还原峰的电子转移系数为 0 40 ,标准速率常数为ks=43.9s-1。用该法测定了片剂VB2 的含量     

MODEL BUILDING AND DATA MINING

This paper defines the phenomenon of data mining in econometrics and discusses various outcomes of and solutions to data mining. Both classical and Bayesian approaches are considered, each with notable advantages and disadvantages, and with the choice of loss function affecting critical values. Illustrative examples include variable addition and exclusion in a standard linear regression model, the choice of lag structure in a dynamic single equation, and specification in a simultaneous equations model.     

OPTIMAL IV ESTIMATION OF SYSTEMS WITH STOCHASTIC REGRESSORS AND VAR DISTURBANCES WITH APPLICATIONS TO DYNAMIC SYSTEMS

This paper considers the general problem of Feasible Generalized Least Squares Instrumental Variables (FGLS IV) estimation using optimal instruments. First we summarize the sufficient conditions for the FGLS IV estimator to be asymptotically equivalent to an optimal GLS IV estimator. Then we specialize to stationary dynamic systems with stationary VAR errors, and use the sufficient conditions to derive new moment conditions for these models. These moment conditions produce useful IVs from the lagged endogenous variables, despite the correlation between errors and endogenous variables. This use of the information contained in the lagged endogenous variables expands the class of IV estimators under consideration and thereby potentially improves both asymptotic and small-sample efficiency of the optimal IV estimator in the class. Some Monte Carlo experiments compare the new methods with those of Hatanaka (1976). For the DGP used in the Monte Carlo experiments, asymptotic efficiency is strictly improved by the new IVs, and experimental small-sample efficiency is improved as well.     

A CONSISTENT MODEL SPECIFICATION TEST FOR A REGRESSION FUNCTION BASED ON NONPARAMETRIC WAVELET ESTIMATION

In this paper we present a consistent specification test of a parametric regression function against a general nonparametric alternative. The proposed test is based on wavelet estimation and it is shown to have similar rates of convergence to the more commonly used kernel based tests. Monte Carlo simulations show that this test statistic has adequate size and high power and that it compares favorably with its kernel based counterparts in small samples.     

科技园区创新平台机制研究

科技园区创新平台是一个复杂的系统,根据其界面的大小可以分成公司型创新平台和服务型创新平台两类。针对公司型创新平台提出以创新为导向的机制设计思路;针对服务型创新平台提出人才服务、资金服务和文化培育并重的模块机制设计思路。针对公司型创新平台和服务型创新平台的交互和优化提出了以功能放大为导向的双环联动框架和模糊集成方法。     

浅析信用证软条款的防范

主要论述了信用证诈骗中一种比较隐蔽的形式———信用证软条款。信用证软条款是赋予开证申请人或开证银行单方面撤销付款责任的主动权的信用证条款。在实际的贸易实务中,软条款有多种表现形式。但不论什么样的软条款,只要真正理解其基本特征就不难识破软条款陷阱。软条款可以从进口商、出口商和开证银行的角度去防范。通过阐述信用证软条款的定义、识别和防范措施,旨在引起出口企业对软条款诈骗的警惕,提高自身业务能力。