Labour mobility during transitionEvidence from Georgia1

This article deals with labour mobility in Georgia during economic transition. We use quarterly 1998–99 panel data to examine mobility across six labour market statuses (inactivity, unemployment, formal wage employment, informal wage employment, self‐employment and farming). Our findings are consistent with the hypothesis of labour market segmentation. Formal employment is preferred to informal employment. Unemployment is largely a queuing device for individuals with higher education waiting for formal jobs. Some self‐employment is subsistence activities and consistent with a segmented labour market, while other is high risk and potentially high return activities. Age, gender and education are significant determinants of labour mobility. Finally, informal employment serves as a buffer in times of recession – with farming and informal wage employment absorbing labour shed by other statuses during the Russian financial crisis.     

CVaR HEDGING USING QUANTIZATION‐BASED STOCHASTIC APPROXIMATION ALGORITHM

In this paper, we investigate a method based on risk minimization to hedge observable but nontradable source of risk on financial or energy markets. The optimal portfolio strategy is obtained by minimizing dynamically the conditional value‐at‐risk (CVaR) using three main tools: a stochastic approximation algorithm, optimal quantization, and variance reduction techniques (importance sampling and linear control variable), as the quantities of interest are naturally related to rare events. As a first step, we investigate the problem of CVaR regression, which corresponds to a static portfolio strategy where the number of units of each tradable assets is fixed at time 0 and remains unchanged till maturity. We devise a stochastic approximation algorithm and study its a.s. convergence and weak convergence rate. Then, we extend our approach to the dynamic case under the assumption that the process modeling the nontradable source of risk and financial assets prices is Markovian. Finally, we illustrate our approach by considering several portfolios in connection with energy markets.     

Testing for hysteresis: Unemployment persistence and wage adjustment

This paper proposes a new testing strategy for unemployment hysteresis as the joint restriction of a unit-root in the unemployment rate and no feedback effect of unemployment in the Phillips wage equation. The associated test statistics are derived when this joint restriction is imposed and when a sequential two steps testing strategy is adopted. An empirical application leads to reject the null hypothesis of wage hysteresis for most of our OECD countries. Evidence against hysteresis is reinforced when accounting for wage adjustments in the bivariate approach. First version received: July 1999/Final version received: May 2002 RID="*" ID="*"  We thank R. Boyer, F. Collard, F. Karamé, F. Langot, F. Mihoubi, W. Pohlmeier and two anonymous referees for fruitful comments. This paper has also benefited from discussions at the T2M conference (Montréal, may 1999) and ESEM99 (Santiago, august 1999). The traditional disclaimer applies.     

Does reducing student support affect scholastic performance? Evidence from a Dutch reform

This paper investigates the impact of student support on performance and time allocation of students in Dutch higher education. In 1996 the maximum duration of grants was reduced by 1 year, and thereby limited to the nominal duration of the study program. This reform could have had substantial financial consequences for students. We evaluate the effects of the reform using a difference-in-differences approach. Our main findings are that after the reform, students early in their study (i) switched less to other programs, (ii) obtained higher grades, while (iii) they did not spend more time studying or working. In addition, for students not older than 20 years when they started their study we find larger effects on all performance variables (switching, percentage of completed courses, graduation in the first year and grade point averages). These findings are consistent with recent evidence on heterogeneous treatment effects for higher ability students.     

Innovation,exports, productivity and investment climate; a study based on Indian manufacturing firm-level data

In this paper, we use univariate instrumental estimations to study the interactions between firm-level innovation, exports and productivity in the Indian manufacturing sector. To differentiate incentives to innovate from the ability to innovate, we distinguish the inputs of innovation (R&D and training) from the outputs. Our findings highlight a virtuous circle between the three components of innovation, as well as between firms’ R&D, innovation and exports. The productivity of Indian manufacturing firms is benefiting from this dynamics, as exports and innovation improve firms’ TFP. With respect to the investment climate, our results suggest that differences in the environment of Indian companies contribute to their performance gaps. These results are all the more important in the context of the Make in India campaign and the weaknesses of India’s business environment.     

浅议房地产"泡沫"及对策

房地产经济是国民经济的重要组成部分，不仅带动和影响着国民经济中的众多产业，也对国家经济建设起着举足轻重的作用。近年来房地产业一直是拉动中国经济的动力之一，但随着地方投资的升温，挤占耕地和房价高涨，尖利的警报声在中国地产的上空不断响起，“地产泡沫”将导致中国地产走向崩溃的言论，使得关心中国地产人们的目光聚集到一起，有必要认真了解分析一下近年来房地产业的功过得失。     

浅谈我校机房教育和管理

结合实际主要阐述了高职高专计算机专业上机考试工作的实践并对高校机房管理进行了探讨。     

中国通货膨胀的波动性与杠杆效应研究——基于条件异方差模型的实证分析

利用条件异方差模型对我国居民消费价格指数建模,并基于此展开对中国通货膨胀的一般特征进行分析、研究。实证结果表明,我国的通货膨胀具有强惯性、波动集群性、杠杆效应等特征。依据我国通货膨胀的动态特征和机制来制定相应的货币政策将有助于缩短货币政策的时滞和合理疏导微观主体的通胀预期,也有利于正确地引导和稳定市场经济,并最终能提高货币政策的有效性。所以,我国通货膨胀治理过程中必须充分考虑我国通货膨胀特征的影响,及时采取措施消除那些与市场制度逻辑不一致的政策传导因素以及对政策信号不能作出理性反应的市场因素。     

Values,socially conscious behaviour and consumption emotions as predictors of Canadians’ intent to buy fair trade products

Over the last two decades, a growing concern about ethical behaviour has been observed among consumers. Ethically minded consumers are more inclined towards the consumption of ethical goods, such as green products and fair trade (hereafter, ‘FT’) products, organic products and local products. Establishing the motives that predict FT consumption behaviour provides ground for understanding how consumers make purchase decisions. This research postulates that the intention of buying FT products is influenced by socially conscious behaviour, consumers’ values and emotions. The study, conducted among 268 Canadian consumers, shows that the high intention of buying FT products is linked to high levels of pride, enthusiasm, satisfaction, happiness and joy related to FT product consumption. The FT consumption experience provides consumers with hedonic gratification. It shows that the higher the levels of self‐centred, equality and social justice values are, the higher the intention of buying FT products. An increase in socially conscious behaviour generates an increase in intention of purchasing FT products. The research contributes to a preliminary analysis of the role of emotions in this field and calls for the development of cognitive‐affective models of purchase and consumption behaviour. Understanding the dimensions of hedonic values and the significance of pleasure experience is essential to the development of the theory and practices of FT consumption.