Against the backdrop of the acceleration in pace of work and family life over the last decade, and the accompanying intensification of the work-family debate, this paper argues for the need to include children as stakeholders in the work-family debate. The ethnographic study on which this paper is based brings together children, family, work and community to explore interrelationships between workplace change, parental employment and family life in the oil and gas industry in Scotland. This paper focuses specifically on children's accounts of parental work and the work-family interface. Children, aged 8-12, were seen in schools and at home. Eight focus groups were conducted in two primary schools with 33 children. Nineteen of the families of these children participated in follow-up home interviews, in which 21 focus group children and a further 21 children (siblings, cousins and friends) were seen at home. Multiple methods were used: pictures and photographs of 'work', drawings, a poem, vignettes, word games, and a 'life mode technique'. The paper discusses children's concepts of 'work'; children's knowledge of parental work and the oil industry; children's perceptions of the impact of work on their parents; children's accounts of the effects of parental work on them and the importance of 'family time'; children's own work aspirations; and children's views and values about involvement, communication and decision making regarding parental work. Similarities and differences between children's accounts are highlighted. Sobre el telón de fondo del aumento de paso del trabajo y de la vida familiar en esta última década, y la intensificación del debate 'trabajo/familia' que lo acompaña, este artículo aboga por lo necesidad de incluir a los niños como partes interesadas en tal debate. El estudio etnográfico sobre el cual se basa este artiículo reune a los niños, la familia, el trabajo y la comunidad para explorar las interrelaciones entre el cambio de lugar del trabajo, el empleo de los padres y la vida familiar en la industria petrolera y del gas natural en Escocia. Este artículo se centra específicamente en las cuentas de unos niños del trabajo de los padres y de la interrelación entre el trabajo y la familia. Se entrevistaron a unos niños de 8—12 anos de edad en la escuela y en casa. Se realizaron ocho grupos de enfoque con 33 niños en dos escuelas de estudios primarios. De las familias de estos niños, 19 participaron en entrevistas de seguimiento, en las cuales 21 niños de los grupos de enfoque y 21 niños más (hermanos, primos y amigos,) fueron entrevistados en casa. Se emplearon múltiples métodos: ilustraciones y fotografías de ‘trabajo', dibujos, un poema, estampas, juegos con palabras y una ‘técnica modo de vida'. El artículo trata de los conceptos de los niños del trabajo; los conocimientos de los niños del trabajo de los padres y de la industria petrolera; las percepciones de los niños del efecto del trabajo en sus padres; las cuentas de los niños de los efectos del trabajo de los padres en los mismos niños y de la importancia del ‘tiempo para la familia'; las propias aspiraciones del los niños acerca del trabajo; y los puntos de vista y los valores de los niños sobre la participación, la comunicación y la toma de decisiones acerca del trabajo de los padres. Se ponen del relieve los elementos en común y las diferencias entre las cuentas de los niños. 相似文献
Screening is a process of multiple-criteria decision aid (MCDA) in which a large set of alternatives is reduced to a smaller set that most likely contains the best choice. We propose screening using a distance model calibrated on the basis of the decision-maker's own judgement. Viewing MCDA as preference aggregation based on consequence data, we define consequence and preference expressions (values and weights) and describe how they are aggregated. Then we define screening and explain some of its properties. Using an appropriate definition of distance, our case-based distance method screens a set of alternatives using criterion weights and a distance threshold obtained by quadratic optimization using the decision-maker's selection of alternatives from a test set. This case-based method can elicit the decision maker's preferences more expeditiously and accurately than direct inquiry. An application in water supply planning is used to demonstrate the procedure. 相似文献
Structural breaks in the level as well as in the volatility have often been exhibited in economic time series. In this paper, we propose new unit root tests when a time series has multiple shifts in its level and the corresponding volatility. The proposed tests are Lagrangian multiplier type tests based on the residual's marginal likelihood which is free from the nuisance mean parameters. The limiting null distributions of the proposed tests are the χ2distributions, and are affected not by the size and the location of breaks but only by the number of breaks.
We set the structural breaks under both the null and the alternative hypotheses to relieve a possible vagueness in interpreting test results in empirical work. The null hypothesis implies a unit root process with level shifts and the alternative connotes a stationary process with level shifts. The Monte Carlo simulation shows that our tests are locally more powerful than the OLSE-based tests, and that the powers of our tests, in a fixed time span, remain stable regardless the number of breaks. In our application, we employ the data which are analyzed by Perron (1990), and some results differ from those of Perron's (1990). 相似文献