Are Workers' Enterprises Entry Policies Conventional?

Abstract. One of the reasons why workers' enterprises (WE) still represent a relevant chunk of the economy may lay in some affinities with conventional profit‐maximizing firms. To provide a solid basis to this presumption, we compare the entry policies of WEs and conventional firms when size is set at entry and kept fixed afterwards. Even though short‐run differences remain between WEs and conventional firms, a long‐run coincidence appears in an uncertain dynamic environment. Endogenizing size and time of entry we see that the two kinds of firms enter at the same trigger market price and size. Both of them enter earlier and choose a dimension larger than the minimum efficient scale. This generalized coincidence may be another way to explain why WEs still make for an important share of the economy despite the ongoing mantra of their imminent demise.     

Time,Trust and Hazard: Hairdressers' Symbolic Roles

Field work on five hairdressers in a small, suburban beauty shop shows that routine hazards provide an organizational justification to establish and maintain processes which create and sustain trust, both with coworkers and clients. The study analyzes data from interviews and weekly observations, and details the types of workers and clients; the hairdressers' roles as caretakers, friends and riskbearers; the necessity of establishing “professional” identities with clients by scheduling appointments; and the construction of shared futures among “regulars.” In the course of observing the symbolic and temporal processes associated with trust, hazards to hairdressers from chemicals, equipment, and procedures are examined, followed by the kinds of risks effecting clients from chemicals, equipment, and hairdressers' technical competence and moral responsibility, as framed by their “honorific” professional roles.     

Correlates of wellbeing among African American lesbians

Although there is a growing body of knowledge about health among African American women in general, there is a dearth of information on African American lesbians. The primary purpose of this study was to investigate the correlates of health-related quality of life among African American lesbians using a cross-sectional anonymous survey with topics and measures developed by members of the African American lesbian community. Surveys were completed by 123 English speaking adult women who identified as African American lesbians and were attending the Zuna Institute's National Black Lesbian Conference. Overall, we found a very high health-related quality of life, in spite of a high frequency of health impairments. The average body mass index (BMI) for this sample was 32.2 (SD?=?8.0); 13% were morbidly obese, having a BMI of 40 or more and only 15% of the women were in a healthy weight range; advancing age was associated with poorer physical functioning, decreased physical role functioning, and more pain. Health-related quality of life was associated with depression and spirituality, but not religion. This study highlights the need for subjective measures of health-related quality of life as well as checklists of diseases and disorders.     

Some properties of generalized ridge estimators

Exact expressions, in the form of infinite series expansions, are given for the first and second moments of two well known generalized ridge estimators. These series expansions are then evaluated using recursive formulas and computations are verified using approximations. Results are presented for the relative mean square error and bias of these estimators as well as their relative efficiency with respect to least squares.     

Gini Index Decomposition for the Case of Two Subgroups

In the framework of inequality measures decompositions, this article introduces an immediate and straightforward simplification for the Gini index when a population is divided in two subgroups. Since one of the key points in inequality analysis is represented by the role of overlapping units, a simulation study is developed in order to analyze the effects of the overlapping component on inequality decomposition. Simple expressions for the measurement of either overlapping component and inequality between are derived, which allow to correctly evaluate and compare the effects of different factors on total inequality.     

Generalized Control Charts for Non-Normal Data Using g-and-k Distributions

Statistical control charts are often used in industry to monitor processes in the interests of quality improvement. Such charts assume independence and normality of the control statistic, but these assumptions are often violated in practice. To better capture the true shape of the underlying distribution of the control statistic, we utilize the g-and-k distributions to estimate probability limits, the true ARL, and the error in confidence that arises from incorrectly assuming normality. A sensitivity assessment reveals that the extent of error in confidence associated with control chart decision-making procedures increases more rapidly as the distribution becomes more skewed or as the tails of the distribution become longer than those of the normal distribution. These methods are illustrated using both a frequentist and computational Bayesian approach to estimate the g-and-k parameters in two different practical applications. The Bayesian approach is appealing because it can account for prior knowledge in the estimation procedure and yields posterior distributions of parameters of interest such as control limits.     

A Stock-Flow Model to Analyse and Forecast Labour Market Variables

ABSTRACT: In confronting problems of employment and unemployment, students of the labour market, and economists in general have focused mainly on the determination of the level of such variables. Much less attention has been paid to such questions as: how many persons have entered the area of employment and the labour force in various time periods, and how many have exited; their sex and age distribution; and the determinants of the level and structure of flows amongst the various labour market conditions. Yet it appears superfluous to underscore the relevance of such questions. To illustrate, suffice it to recall that in Italy, the present level of employment is essentially the same today as it was in 1961‘; but this has not prevented whole generations of young people from 'stably’entering the employment area, albeit with varying degrees of difficulty in different periods. As for the numerous statistical surveys of labour market flows in a range of countries, and as for the works of job search theorists², it should be observed that such surveys and analyses essentially concern conjunctural phenomena. Consequently, these authors have paid no attention to the distinction between short-run turnover and generational turnover, or to the extremely singular characteristics of the statistical data on flows. An attempt to construct labour market models that present an integrated version of the 'structural’aspects of the market in terms of stock and flows is therefore lacking. The present study sets forth various objectives and is divided into two parts. In the first, an analysis of several controversial terminological aspects of the concepts of stock and flow is presented, and an attempt is made to point out those theoretical structures which have been responsible for the long-prevailing neglect of the labour market flows, particularly long-run flows. Then the problem of defining the concepts of short-run and generational turnover will be confronted in light of an analysis of the statistical methods used in the surveys; finally, a methodology for measuring generational flows is proposed. In the second part of the paper a model based on generational flows, as previously defined, will be presented together with a computational procedure capable to produce long run estimates of alternative scenarios of labour demand and supply and of the structure of employment by sex and age. A brief summary of some of the empirical results obtained applying our model and forecasting procedure to the Italian labour market will also be discussed in the final part of the paper.     

The Role of Metacognition in Pathological Gambling: A Mediation Model

Pathological gambling involves multitudinous costs related to financial, legal, and public health care aspects, as well as to specific psychological disorders. Despite the overall evidence suggesting that comorbid disorders represent a risk factor for pathological gambling, there is scant evidence on the appropriate treatments for gamblers with such disorders. In this context, metacognitive therapy is an interesting approach because it considers psychological disorders as a result of the activation of perseverative cognitive processes and attentional strategies in response to inner events. Several studies report that metacognition is associated with different psychological problems. This study investigated the relationship among comorbid disorders, metacognition, and pathological gambling. 69 pathological gamblers at the first hospital admission and 58 controls drawn from general population (matched for age, gender, education) completed a battery of self report instruments: Symptom Checklist-90-R, Metacognition Questionnaire 30, South Oaks Gambling Scale. Compared to controls, pathological gamblers showed higher level of comorbid symptomatology and metacognition. Correlation analyses showed that: comorbid symptomatology and metacognition were positively and significantly correlated with pathological gambling; metacognition was positively and significantly associated with comorbid symptomatology. Mediation analysis indicated that dysfunctional metacognitive strategies could have an indirect effect on pathological gambling mediated by concurrent psychological disorders. These findings provide some implications for gambling treatment programs: pathological gamblers should be screened for psychiatric disorders, and metacognitive therapy could be considered a correct treatment of pathological gamblers. Metacognitive therapy might lead to the reduction of the pathological gambling by the diminishing of the concurrent psychological disorders.