粮价上涨最终受益者是农民吗?

与国际范围内粮食价格快速上涨同时,中国粮食市场自2006年9月出现新一轮的粮价上涨。物价上涨在2008年春节前后达到了高峰,特别是食品价格上涨较快。国内粮价不断攀升,看似农民收入增加,但伴随着一系列的农产品生产资料的价格增加,农业间接成本投入的攀升,农民最终收入所剩如何?     

法哲学核心范畴的反思与重建

法哲学核心范畴是指对法哲学范畴体系和理论体系建构具有基础性作用的,与法哲学基本范畴具有普遍联系并对其具有逻辑统摄功能的,能总体反映或揭示法律现象的普遍本质和一般规律的法学范畴。法律关系应当成为法哲学核心范畴,这既是对各种法哲学理论不断反思的结果,也是对人类法律实践经验的理性总结。因此,对法哲学核心范畴进行反思与重构既是法学理论创新之必须,也是法律实践不断深化之必然。     

I am therefore I own: Implications of organization-based identity for employee stock ownership

Most research on employee stock plan participation investigates the effects of such forms of ownership on employee attitudes, leaving our understanding of the individual differences that contribute to employee ownership largely unknown. Drawing from the consumer behavior literature, our study explores the effect of organization-based identity on the decision to participate in an employee stock purchase plan. The study was conducted in a newly public firm where we examine the effect of organization-based identity on the purchase decision in two time periods. The first point in time was the initial public offering (IPO), when the employee has little information on how the firm's stock will perform in the market. The second point in time was the first quarter following the IPO, when employees have market data to help them with decision-making. Results indicate that, as predicted, organization-based identity is associated with participation in an employee stock purchase plan, at both points in time, above and beyond the influence of several economic and psychological predictors reported in prior studies.     

Investment and saving in Angola and the Feldstein–Horioka puzzle

This article analyses the relationship between investment and savings for Angola using the Feldstein–Horioka puzzle, with monthly data from January 2000 to December 2013. Integer and fractional integration and cointegration techniques are employed to investigate the relationship between investment and savings. Several regression specifications are employed, concluding that the Feldstein–Horioka puzzle is not validated for the Angolan economy. Policy implications are derived.     

Employer-provided training,innovation and skills in post-Soviet countries

This paper analyzes the extent of employer-provided training in Armenia, Azerbaijan, Georgia and Ukraine and investigates its relationship with innovation, having international business contacts, use of computers at work, reported skills shortages and other firm characteristics. It contributes to the literature by examining different types of training – initial on-the-job learning, more formal in-house training and external training, which is provided by firms to two categories of workers – white- and blue-collar workers. After controlling for a range of firm characteristics, we find a positive link between technological innovation and intensity of training of all types provided to white-collar workers that points to the technology-skills complementarity. Furthermore, the level of computer use at work is a significant determinant of the incidence and intensity of external training provided to white-collar and blue-collar workers.     

多管道的客户关系管理

探讨一种有效的客户关系管理方法,即企业通过建立多管道的方式来管理客户,对客户信息进行集成,有效实施多管道的客户关系管理,提高企业的竞争优势。     

关系营销在现代营销中的实施

关系营销的时代已经到来。本文探讨了关系营销与传统营销的差别,分析了关系营销在现代营销中的作用及其实施方法,构筑了基于6C理论的关系营销管理模式。     

提高《马克思主义基本原理概论》教学质量探析

《马克思主义基本原理概论》教学是对大学生进行马克思主义理论教育的主渠道和主阵地,肩负着培养大学生科学的世界观、人生观和价值观,提升大学生思想政治素养的重任。提高马克思主义理论教学质量必须把握好正面教育和批判教育的关系、教师主导和学生主体的关系、理论教学和实践教学的关系、课堂教学和网络教学的关系。     

A dynamic Nelson-Siegel yield curve model with Markov switching

This paper proposes a model to better capture persistent regime changes in the interest rates of the US term structure. While the previous literature on this matter proposes that regime changes in the term structure are due to persistent changes in the conditional mean and volatility of interest rates we find that changes in a single parameter that determines the factor loadings of the model better captures regime changes. We show that this model gives superior in-sample forecasting performance as compared to a baseline model and a volatility-switching model. In general, we find compelling evidence that the extracted factors from our term structure models are closely related with various economic variables. Furthermore, we investigate and find evidence that the effects of macroeconomic phenomena such as monetary policy, inflation expectations, and real economic activity differ according to the particular regime realized for the term structure. In particular, we identify the periods where monetary policy appears to have a greater effect on the yield curve, and the periods where inflation expectations seem to have a greater effect in yield determination. We also find convincing evidence of a relationship between the regimes estimated by the various switching models with economic activity and monetary policy.     

Modelling the implied volatility surface based on Shanghai 50ETF options

We develop a dynamic factor model to forecast the implied volatility surface (IVS) of Shanghai Stock Exchange 50ETF options. Based on the assumption that dynamic change in IVS is mean-reverting and Markovian, we use a state space model to capture the dynamics of IVS, and set the latent factors to be the Ornstein–Uhlenbeck processes. We obtain the optimal estimations of parameters using the Kalman filter algorithm. Empirical results show that our model performs better than the traditional IVS model in terms of fitting ability and prediction performance.