Estimation of firm-specific technological bias,technical change and total factor productivity growth: a dual approach

This paper deals with modeling firm-specific technical change (TC), and technological biases (inputs and scale) in estimating total factor productivity (TFP) growth. Several dual parametric econometric models are used for this purpose. We examine robustness of TFP growth and TC among competing models. These models include the traditional time trend (TT) model and the general index (GI) model. The TT and the GI models are generalized to accommodate firm-specific TC and technological bias (in inputs and output). Both nested and non-nested tests are used to select the appropriate models. Firm-level panel data from the Japanese chemical industry during 1968- 1987 is used as an application.     

Stochastic dominance amongst swedish income distributions

:Sweden's income distribution for the whole population and for subgroups, including its immigants, has been extensively studied. The interest in this area has grown with increasing availability of data, including panels. The previous studies are based on indices of inequality or mobility. While indices are useful for complete ordering and have an air of "decisiveness" about them, they lack universal acceptance of the value judgements inherent to the welfare functions that underlay any index. In contrast, uniformpartial order relations are studied in this paper which rank welfare situations over very wide classes of welfare functions. We conduct bootstrap tests for the existence of first and second order stochastic dominance amongst Sweden's income distributions over time and for several subgroups of immigrants. Analysis of immigrant's income is motivated by the fact that the development of income for immigrants has been different and strongly affected by their length of residence and countries of origin. We consider several non-consecutive waves of a panel of incomes in Sweden. Two income definitions are developed. One is pre-transfers and taxes, gross income, the other is a post-transfers and taxes, disposable income. The comparison of the distribution of these two variables affords a partial view of Sweden's welfare system. We have focused on the incomes of Swede's and immigrant groups of single individuals identified by country of origin, length of residence, age, education, gender, marital status and other relevant characteristics. We find that first order dominance is rare, but second order relations hold in several cases, especially amongst disposable income distributions. Sweden's incomes and welfare policies favor the elderly, females, larger families, and longer periods of residency. We find, in general, the higher the educational credentials, the higher is the burden of this equalization policy.     

我国少数民族传统医药知识产权保护探究

随着我国少数民族传统医药产业的不断壮大,与世界其他国家之间的医药贸易往来不断增多,对其进行知识产权保护显得尤为必要。基于对我国少数民族传统医药专利申请现状的分析,我国少数民族传统医药知识产权法律保护机制仍存在较大的完善空间。在少数民族传统医药知识产权保护方面,印度和泰国为我国提供了立法新思路和保护新途径;我国可制定少数民族传统医药知识产权专门立法,建立少数民族传统医药知识保护基金以提供有力的知识产权保护措施。     

Estimation of firm-specific technological bias, technical change and total factor productivity growth: a dual approach

This paper deals with modeling firm-specific technical change (TC), and technological biases (inputs and scale) in estimating total factor productivity (TFP) growth. Several dual parametric econometric models are used for this purpose. We examine robustness of TFP growth and TC among competing models. These models include the traditional time trend (TT) model and the general index (GI) model. The TT and the GI models are generalized to accommodate firm-specific TC and technological bias (in inputs and output). Both nested and non-nested tests are used to select the appropriate models. Firm-level panel data from the Japanese chemical industry during 1968- 1987 is used as an application.     

The Effects of Early Institutionalization and Foster Care Intervention on Children's Social Behaviors at the Age of Eight

The present study compared the social behaviors of eight‐year‐old previously institutionalized Romanian children from the Bucharest Early Intervention Project (BEIP) in two groups: (1) children randomized to foster care homes (FCG), and (2) children randomized to care as usual (remaining in institutions) (CAUG). Children were observed interacting with an age‐ and gender‐matched unfamiliar, non‐institutionalized peer from the community during six interactive tasks, and their behavior was coded for speech reticence, social engagement, task orientation, social withdrawal, and conversational competence. Group comparisons revealed that FCG children were rated as significantly less reticent during a speech task than CAUG children. For CAUG children, longer time spent in institutional care was related to greater speech reticence and lower social engagement. Using an actor–partner interdependence model, CAUG children's behaviors, but not FCG, were found to influence the behavior of unfamiliar peers. These findings are the first to characterize institutionalized children's observed social behaviors toward new peers during middle childhood and highlight the positive effects of foster care intervention in the social domain.     

Technical change and total factor productivity growth in swedish manufacturing industries

This paper is concerned with the measurement of total factor productivity(TFP) growth and technical change in Swedish manufacturing industries during the period 1964-1989. Two alternative formulations of technical change, viz., the time trend model and the general index model are used for measuring TFP growth and technical change. Measures of these are embedded in a cost minimization framework where we estimate the translog cost function along with the associated cost share equations. The cost function accommodates industry-specific variability through an error component model. The models are estimated using the iterative seemingly unrelated regression method after some transformations to the cost function. Empirical results show that the general index model is superior to the time trend model when the pattern of technical change and total factor productivity growth are examined.     

Children's Disclosure and Secrecy: Links to Maternal Parenting Characteristics and Children's Coping Skills

The relations between maternal parenting characteristics, child disclosure and secrecy, and child outcomes (positive and negative strategies for coping with distress), were examined in a study of 140 children (10–12‐year‐olds) and their mothers. Child disclosure and secrecy were shown to be distinct but related constructs with authoritativeness predictive of disclosure and dispositional anger predictive of secrecy. These relations held even when child compliance was included as a control variable. Mothers' authoritative parenting predicted disclosure which in turn predicted children's use of positive coping strategies. Mothers' dispositional anger predicted secrecy which mediated the relation between maternal anger and children's use of negative coping strategies. Results are discussed in terms of parent–child communication and opportunities for mothers to use knowledge gained from child disclosure to teach children successful ways of dealing with distress.     

Community-Based Disability Prevention Programs for Elders: Predictors of Progam Completion

Strategies to foster elder well-being and reduce long-term care costs include efficacious community disability prevention programs. Program completion remains an important barrier to their effectiveness. We examined the association between provider relationships and client variables, and program completion in senior centers. Our mixed methods design used secondary data for 719 clients and primary data through telephone interviews with 20 nurses, 23 social workers, and 18 site managers. Quantitative data showed that higher client baseline self-efficacy positively influenced completion and minority status negatively influenced completion. Qualitative data showed that higher focus on provider-client relationships was associated with high completion.