A Bayesian approach to experimental analysis: trading in a laboratory financial market

We employ a Bayesian approach to analyze financial markets experimental data. We estimate a structural model of sequential trading in which trading decisions are classified in five types: private-information based, noise, herd, contrarian and irresolute. Through Monte Carlo simulation, we estimate the posterior distributions of the structural parameters. This technique allows us to compare several non-nested models of trade arrival. We find that the model best fitting the data is that in which a proportion of trades stems from subjects who do not rely only on their private information once the difference between the number of previous buy and sell decisions is at least two. In this model, the majority of trades stem from subjects following their private information. There is also a large proportion of noise trading activity, which is biased towards buying the asset. We observe little herding and contrarianism, as theory suggests. Finally, we observe a significant proportion of (irresolute) subjects who follow their own private information when it agrees with public information, but abstain from trading when it does not.     

Marx Inside the Circuit: Discipline device,wage bargaining and unemployment in a sequential monetary economy

The aim of this paper is to show that Marxian labour theory of value can be consistently interpreted in terms of the monetary circuit model, where firms need initial finance to start production and where the money supply is endogenous. In contrast to the recently revived Marxian monetary models, in particular the New Interpretation, it is argued here that although the money wage is bargained for on the labour market, the real wage is determined by firms' choices, since firms autonomously determine the structure of production and hence real consumption for the working class as a whole. This does not mean that firms are able to set the real wage without economic and social constraints. Starting from our circuitist reading of the labour theory of value and distribution, a model is developed in order to determine the level of employment and income distribution, on the assumptions that (i) the industrial reserve army affects wage bargaining and labour effort and that (ii) workers react to the failure of their expectations on the real wage by reducing their work intensity. In this context, it is shown that firms may increase their share of profits over time only be means of innovations.     

The antecedents of employee commitment to customer service: evidence from a UK

This paper provides a first attempt at conceptualizing and operationalizing the notion of commitment to customer service (CCS) as part of a broader concern to explore the determinants of key aspects of service quality and of individual-level performance in service organizations. Based on an explicitly behavioral definition of commitment to customer service, we first set out a model of the antecedents of CCS. We then test it using data from a representative sample of 717 employees of a major food-retailing organization in the UK. The results suggest that commitment to customer service is primarily a non-calculative phenomenon driven above all by affective. normative altruistic concerns, rather than by overtly instrumental considerations. Additional significant determinants of CCS were job pressure, job routinization. job competence and employees' understanding of customer service requirements. Research and policy implications of the study are discussed.     

Face validity in personality tests: psychometric instruments and projective techniques in comparison

Face validity is a controversial kind of test validity. Personality tests are divided into two big categories: projective techniques and psychometric instruments. They differ also for face validity, which influences the perception that people have of tests themselves. The article reports the scientific debate on face validity, and the results of a study carried out on naive subjects in order to let them compare projective techniques and psychometric instruments on the mere basis of their surface. An ad hoc questionnaire was administered. It asked subjects to compare projective techniques and psychometric instruments by using 13 adjectives. The sample, accidental, is composed of 238 participants, 45 males and 193 females. The data were substantially analyzed through techniques of Correspondence Analysis. Personality tests are principally judged through two dimensions: the aesthetic and the efficacy. The first dimension characterizes in particular projective techniques; the second, psychometric instruments. Although participants acknowledge that psychometric instruments are credible and scientific, there is a clear preference for projective techniques, principally by females, people younger than 22 and participants with lower education. Personality tests have an appearance that is judged by those who look at them. The aesthetic seems to prevail on the efficacy perception, but it would be suitable to carry on the same research with a sample stratified in respect of the personal details measured by the questionnaire.     

Financial development and remittances: Micro-econometric evidence

We estimate a behavioural model of household’s remittances to investigate to what extent the level of financial development in the home country affects decisions on whether and how much to remit.     

Between Wicksell and Hayek

A bstract Mises' Theory is grounded on the "ultra-Wicksellian" idea that the pure credit system represents the working of a modern monetary economy, and that forcing banks to raise the rate of money interest does not need to operate through some binding bank-liquidity constraint. It is the rise in the relative price of consumption goods against production goods that accounts for the end of inflation. According to Mises, it is in the power of the banks to resist this readjustment; in this event, the only end to hyperinflation comes from the breaking of the monetary system. Hayek develops the second side of Mises'argument, the capital-allocation effect, while the first side, the ultra-Wicksellian picture of the monetary economy, is either weakened or taken for granted. Wicksell's 1914 reaction to Mises'book is recalled. Some criticism of Mises'readjustment mechanism from a Keynesian-Schumpeterian point of view is offered in the concluding remarks.     

Modelling Determinants of Participation,Number of Trips and Site Choice for Outdoor Recreation in Protected Areas

This is a study on demand for outdoor recreation in a national system of environmentally protected areas. The exercise is based on a nationwide survey carried out in 1996 from a stratified random sample of 5,574 Italian households. Data on socio‐economic characteristics and recreational choice behaviour of respondents were collected and this information was supplemented by a second data‐base containing information on 193 Italian EPAs in order to characterise the different outdoor destinations on the basis of their recreational attributes. These data sets are used here to model choices of outdoor recreation within environmentally protected areas, using a sequence of three different models: (i) a dichotomous choice logit model for the probability of participation conditional on household covariates; (ii) a count data Poisson model to estimate the household's expected number of trips per year; (iii) a conditional logit model to estimate the probability of site selection conditional on site attributes. We report the estimated per‐trip welfare changes derivable from an actual policy proposal which would extend the area under environmental protection by ten per cent.     

A top-down approach and a decision support system for the design and management of logistic networks

This paper presents an original top-down approach, made of original models and solving methods, and a decision support system (DSS) for the execution of the strategic planning, the tactical planning and the operational planning in a multi-echelon multi-stage multi-commodity and multi-period production, distribution and transportation system. The DSS is a software platform useful for the design, management and control of real instances. It can efficiently supports the decision making process of logistic managers and planners of large enterprises as multi-facilities companies and production–distribution networks. A significant case study is illustrated. The results obtained by the application of different problem settings are compared and discussed.