Estimating the asymptotic relative efficiency of weighted rankings

Five tests for the hypothesis of no treatment effects in complete blocks designs are compared with respect to asymptotic relative efficiency: the ordinary two-way analysis of variance, the analysis of variance of ranks (Friedman, 1937), the method of ranking after alignment (Hodges and Lehmann, 1962), and a method of weighted rankings proposed by Quade (1972, 1979). This comparison required devising a procedure for estimating the asymptotic relative efficiencies of test statistics with asymp-totic chi-squared distributions.     

Make,buy or both? R&D strategy selection

The aim of this paper is to increase our knowledge of a firm's innovative behaviour by jointly analysing its internal resources, industry characteristics and appropriability conditions as drivers of its R&D strategy selection: make, buy and make-buy. Based on panel data (1992–2005) covering 1539 Spanish manufacturing firms, results show that firms lacking organisational resources and competing in stable markets prefer the buy strategy. Firms with a high level of technological resources that are immersed in high-tech industries are prone to selecting the make-buy strategy. Internationalised firms with high levels of appropriability prefer the make strategy.     

Risk Analysis in Developing Countries1

In summary, risk analysis is not yet well practiced in developing countries, although there are numerous, diverse environmental and other risk-related issues and concerns that need attention. A few initiatives have been taken, but, so far, they have created only relatively small impact in a few areas. Many risk issues may not be addressed, partly as a result of lack of resources and inadequate knowledge by policy makers. Risk analysis is an essential tool for the planning and implementation of development projects. To enhance its use, however, risk analysis approaches and methods must be adapted to developing countries, and this requires research. Unfortunately, funds for research, in general, are hard to find. There are other problems in the implementation of risk analysis. Trained professionals on risk analysis are few. Existing institutions that are tasked with resolving environmental and other risk issues are overburdened. Risk-related data are sorely lacking. Resources are very limited for addressing numerous natural and technological hazards. In most developing countries, political and economic stability is still threatened by both internal and external forces, hence, that is what receives priority attention. Activities like risk analysis, which generally lead to long-term results and benefits, do not get enough interest. In addition, there is still little public awareness of risks even among those who have passed the stage of survival; thus, there is little public concern about them. We cannot afford this lack of concern for long. In the Philippines, the government was the first to recognize after our peaceful revolution in 1986 that “the environmental issues can add fuel to the insurgency; they can also hamper efforts towards national recovery”.⁽⁴⁾ To this point, I have added that risk management (including risk assessment and risk communication), like attainment of peace and freedom, is a social imperative because risk issues affect our health, safety, and both our physical and economic well-being.⁽⁷⁾ Many of such issues in developing countries have not only local, but also global origin and impacts. They thus deserve the interest of each of us.     

Validation of the Satisfaction with Life Scale to Brazilians: Evidences of Measurement Noninvariance Across Brazil and US

Satisfaction with life is one of three hallmarks of subjective well-being, along with frequent positive emotions and infrequent negative emotions (Diener et al. in Psychol Bull 125:276–302, 1999), and the satisfaction with life scale (SWLS; Diener et al. in J Pers Assess 49:91–95, 1985) has been used worldwide to evaluate it. The current study seeks to (a) adapt and gather evidence of validity and reliability of the SWLS for a Brazilian sample, (b) evaluate gender equivalence on Brazilian university students, and (c) test for invariance between Brazilian and US samples. Participants were US (N = 241), and Brazilian (N = 1,388) undergraduates. Results from the Brazilian sample, based on confirmatory factor analyses and measurement invariance tests, showed: (a) evidence of validity of the scale, (b) scalar invariance across gender, (c) scalar invariance within group. However, nonequivalence between Brazil and US samples was found. Such results suggest that within comparisons can be conducted with Brazilian undergraduates, but comparisons between Brazil and the US might be misleading due to lack of invariance. Similar findings have already been reported in other cultures and raise questions about cross cultural studies with this scale.     

Validation of the Beliefs about Children’s Adjustment in Same-Sex Families Scale in Italian University Students

ABSTRACT

Assessing attitudes toward same-sex parenting has important implications for both intervention and prevention programs designed to foster the tolerance and normality of sexual and family diversity. Few empirically validated measures of rejection of same-sex parenting have been developed. The current study examined the psychometric properties of an Italian translation of the Beliefs about Children’s Adjustment in Same-Sex Families Scale, a 14-item scale distributed in two subscales that measure direct and subtle rejection toward same-sex parenting, for its use in assessing heterosexual people’s attitudes toward same-sex parents in Italy. The sample consisted of 344 Italian heterosexual university students (113 men) with a mean age of 20.48 years (SD = 1.60). The results showed that the scale has a good factor structure (via confirmatory factor analysis) and satisfactory reliability and acceptable criterion-related validity. Therefore, the BCASSFS can be used to measure opposition toward gay and lesbian parenting in the Italian context.     

A Method for Estimating Time Dependent Intervention Benefits under Arbitrarily Varying Age and Exogenous Components of Hazard

A method for estimating the dependence of intrinsic intervention benefits on time elapsed since the intervention took place is proposed. The method is aimed at intervention programs against diseases where one or all of the following components of hazard intensity may undergo important and unknown variations: 1) the intervention benefits to a subject are a function of the time elapsed since the intervention took place, or since inception for a continuing treatment, 2) the subjects vulnerability is an unknown function of their age, 3) the exogenous or environmental baseline intensity, to which all are assumed subjected, fluctuates arbitrarily with calendar time. During the time span of a study, these variables interact in a complex way, possibly masking the real contribution of the intervention. However, with very general assumptions about how hazard components interact, the cumulative hazards of subpopulations treated at different times in the past are shown to be described mathematically by a convolution of the time elapsed dependent intervention benefit function with the age and calendar time dependent baseline intensity. Starting from the cumulative hazards of untreated and treated subpopulations that had the intervention at different times in the past, a method of deconvolution through regularization is proposed to reconstruct the time elapsed dependence of the intervention benefit function. The regularization technique used is of the penalized least square smoothing type, it is applied to the solution of Volterra integral equations of the first kind under noisy inputs. Simulations, to test for the reconstruction of different modes of time elapsed variation of the intervention benefits, are carried out on realistically noisy data sets taken to be available at a limited number of time points. The stability of the estimated reconstructions, to measurement errors, is examined through repeated simulations with random noise added to inputs. The method is applied to a Brazilian data set where BCG vaccination resulted in a small reduction in the cumulated risk of leprosy infection.     

TOWARD CONSTRUCTING THE THERAPEUTIC SYSTEM*

The authors revise some of the concepts presented in their previous publications (Andolfi & Angelo, 1981; Andolfi, Nicolò-Corigliano & Menghi, 1983) and develop them further in light of their recent clinical experience. They emphasize that the therapist is not an outside neutral observer, but an active participant in the construction of the therapeutic system. The therapist can, at different times, be caring, detached, supportive, or provocative. In the fantasy of his clients he is a person who knows how to enter into a relationship and how to move out. By entering as the third pole in various triangles and activating new dimensions of rapport, he constructs complex relationships within the evolving therapeutic process. The authors also reevaluate the importance of the individual in the family as an agent of change and as a mediator of triangular relational messages.     

Household Consumption Equivalence Scales: Some Estimates from New Zealand Household Expenditure and Income Survey Data

This paper uses data on expenditures and incomes of New Zealand households of different demographic profiles to construct equivalence scales. The scales are useful in estimating the relative levels of spending required by the households to attain a given level of utility. Preference consistent 'complete demand systems' are analyzed to test for the demographic effects on the consumption patterns of households. Equivalence scales for respect to specific items of consumption as well as total consumption are worked out from the observed consumption behaviour of households. The results are largely in line with those found in existing similar studies both in Australia and New Zealand. To the best of our knowledge, this is the first attempt at constructing equivalence scales with New Zealand household budget data in the framework of hypothesized utility maximizing behaviour of households.     

Quantitative central limit theorems for Mexican needlet coefficients on circular Poisson fields

The aim of this paper is to establish rates of convergence to Gaussianity for wavelet coefficients on circular Poisson random fields. This result is established by using the Stein–Malliavin techniques introduced by Peccati and Zheng (Electron J Probab 15(48):1487–1527, 2010) and the concentration properties of so-called Mexican needlets on the circle.