Efficiency of Microfinance Institutions in the Mediterranean: An Application of DEA

By applying the non-parametric Data Envelopment Analysis (DEA) method, even with all the limitations where error could cause significant problems, this paper attempts to investigate the efficiency of 35 Microfinance institutions in the Mediterranean zone during the period of 2004–2005. The estimated results prove that eight institutions are relatively efficient, and have a notable level of average efficiency and a potential of evolution while being referent to their technical efficiency. The survey also reveals that the size of the MFIs has a negative effect on their efficiency since the MFIs of medium size are more efficient than the eminent.

A Critical Analysis of Australian Television Coverage of Election Opinion Polls

Much recent attention has focused on the nature and possibleeffects of media coverage of opinion polls. Accordingly, thisarticle reports the results of a detailed critical analysisof Victorian television news coverage of election opinion pollsduring the 1980 Australian federal election campaign. Five aspectsof the coverage were analyzed: its extent, focus, completeness,accuracy, and critical balance. The results of the study indicatethat the coverage was seriously, perhaps irredeemably, flawed     

再论同义词

一、现在对同义词的界定是不恰当的 ,应该把意义相同和相近的词分开 ,并给同义词以应有的地位 ;二、词的意义内容 ,即词的词汇意义及其概念对应性 ,以及语法意义和色彩意义是确定同义词的标准和理论根据 ;三、同义词有完全同义词、不完全同义词、义项交叉同义词、言语同义词四个类型 ,并各具不同的性质特点 ;四、古今词和词素也可形成同义关系 ,在这种情况下 ,色彩意义起着不可或缺的作用。     

TESTING FOR EFFICIENCY IN LOTTO MARKETS

State-sponsored lotto games, because they are pari-mutuel and because jackpots with no winner are rolled over into the next drawing, present an excellent opportunity to test for market efficiency. Using data from Massachusetts, Kentucky, and Ohio, we investigate bettors' responses and test for weak-form efficiency. Lotto bets do not have positive net expected returns, thus weak-form efficiency exists. To evaluate strong-form efficiency we utilize the concept of a rational expectations equilibrium. We find that in general lotto bettors' decisions to play generate a level of sales that conform to their original forecasts of expected value.     

Talk Is Cheap: The Value of Language in the World Economy-Illustrations from the United States and Quebec

Global economic restructuring modifies the traditional material value of language skills and stands to increasingly fragment labor along class and ethnic lines. Language deskilling, brought about by the international mobility of capital and technological change, has diminished the value of traditionally skilled labor. Yet labor, though weakened economically and politically, is not powerless. Two contrasting instances, examined through a common political-economic perspective, are considered: the U.S. meatpacking industry as exemplified in a Lexington, Nebraska, plant and the labor movement in the national economy of Quebec. These two cases illustrate the unity and diversity found in the contingent and uncertain process of global economic change. The Lexington example illustrates the process by which the language abilities of both immigrant and indigenous labor have been successfully deskilled. The Quebec instance illustrates the capacity of labor to utilize a common language and culture as a mobilization resource to diminish the devaluation of language and secure material gains. Possible future directions of change are considered in each instance.     

Social Isolation and Lethal Violence Across the Metro/Nonmetro Divide: The Effects of Socioeconomic Disadvantage and Poverty Concentration on Homicide*

Abstract This study extends the macro‐level criminological research tradition by examining the links between socioeconomic disadvantage, poverty concentration, and homicide in metropolitan and nonmetropolitan U.S. counties. Most research in this tradition has tested structural theories using urban areas as the unit of analysis. This “urban bias” has resulted in a limited understanding of the social forces driving violence in nonmetropolitan areas. To partially address this problem, we link the literature on the spatial and social organization of nonmetropolitan communities with the social isolation perspective from the urban poverty literature. We hypothesize that the spatial concentration of poverty drives up rates of homicide in both metropolitan and nonmetropolitan areas regardless of levels of socioeconomic disadvantage. Negative binomial regression for 1,746 nonmetropolitan and 778 metropolitan counties suggest that both socioeconomic disadvantage and poverty concentration elevate homicide in metropolitan areas. However, in nonmetropolitan counties only socioeconomic disadvantage has a significant impact. We conclude by discussing the implications of these differential findings for the social isolation perspective.     

A Range-Based Multivariate Stochastic Volatility Model for Exchange Rates

In this paper we present a parsimonious multivariate model for exchange rate volatilities based on logarithmic high-low ranges of daily exchange rates. The multivariate stochastic volatility model decomposes the log range of each exchange rate into two independent latent factors, which could be interpreted as the underlying currency specific components. Owing to the empirical normality of the logarithmic range measure the model can be estimated conveniently with the standard Kalman filter methodology. Our results show that our model fits the exchange rate data quite well. Exchange rate news seems to be currency specific and allows identification of currency contributions to both exchange rate levels and exchange rate volatilities.     

Rota-Risk-Profile-Analysis

In this article an update of the Rota-Risk-Profile-Analysis (RRPA) is presented. This RRPA is based on 9 rota-risk criteria that are central to a more encompassing rota theory. The RRPA allows coherent assessment of the physical and social risks of a working-time schedule (rota). comparison of schedules with one another in quantitative terms and interpretations of possible differential effects more adequately. First, a closer look at the instrument-a computer program-is taken. Afterwards the criteria and their way of implementation are discussed briefly. To get an impression of the way that RRPA functions an example will be given by applying the instrument to the working rotas from a study on shiftwork in the Netherlands.     

The effects of different choices of order for autoregressive approximation on the Gaussian likelihood estimates for ARMA models

This paper investigates, by means of Monte Carlo simulation, the effects of different choices of order for autoregressive approximation on the fully efficient parameter estimates for autoregressive moving average models. Four order selection criteria, AIC, BIC, HQ and PKK, were compared and different model structures with varying sample sizes were used to contrast the performance of the criteria. Some asymptotic results which provide a useful guide for assessing the performance of these criteria are presented. The results of this comparison show that there are marked differences in the accuracy implied using these alternative criteria in small sample situations and that it is preferable to apply BIC criterion, which leads to greater precision of Gaussian likelihood estimates, in such cases. Implications of the findings of this study for the estimation of time series models are highlighted.     

A Preliminary Investigation of Factors Associated With Job Loss Grief

This study investigated relationships among factors hypothesized as related to job loss grief. A summary grief score correlated positively with time since job loss and number of dependents, and negatively with length of notice. Perceived reemployment prospects and income loss related positively to some grief index subscales, as did the condition of living on one's own. Job duration correlated negatively with some grief responses. Implications for counseling and avenues for future research are discussed.