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This paper is a case study of the Czech central bank's communication with the public following the bank's decision to devalue the Czech currency. The aim is to contribute to knowledge of how central banks discharge their obligations to be transparent in communicating controversial decisions and actions. It is argued that transparency cannot be considered an individual act of the bank, but a joint dialogical accomplishment, which includes, among others, media and the public. The analysis of the interactions shows that the concepts of “dialogical networks” and “practical historians” are useful tools for elucidating how controversies in media develop over time. 相似文献
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Many ideas in the analysis of heterogeneous mortality are based on the relationship between individual and observed hazard rates. This connection is established with the help of conditional averaging procedure: The observed risk of death at age x is calculated among those who survive this age. The analogy of this result for bivariate survival model with correlated individual hazards is derived. In the case of correlated frailty model the parametric specification of the mean, variance and correlation coefficient of the bivariate frailty distribution among survivors is obtained. The relationship between local association measure and the characteristics of the bivariate frailty distribution among survivors is established. 相似文献
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Welfare risks in early adulthood: A longitudinal analysis of social assistance transitions in Norway
Thomas Lorentzen Espen Dahl Ivan Harsløf 《International Journal of Social Welfare》2012,21(4):408-421
Lorentzen T, Dahl E, Harsløf I. Welfare risks in early adulthood: a longitudinal analysis of social assistance transitions in Norway This study assessed the significance of critical life events and socio‐economic background in relation to the likelihood of young Norwegians receiving social assistance, asking how each of these factors contributes both independently and interactively. The data set was derived from a nationwide, longitudinal register and includes the entire 18‐year‐old cohort in 1993. A discrete‐time proportional hazard rate analysis controlling for unobserved heterogeneity was applied. The results indicate that both socio‐economic background and indicators of critical life events have strong independent effects on the likelihood of receiving social assistance. Significant interaction effects between socio‐economic background and certain indicators of critical life events were detected. However, contrary to our expectations, under certain circumstances, coming from a group with low socio‐economic status does not seem to ameliorate the effect of being exposed to critical life events. 相似文献
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The linear sum assignment problem has been well studied in combinatorial optimization. Because of the integrality property, it is a linear programming problem with a variety of efficient algorithms to solve it. In the given research, we present a reformulation of the linear sum assignment problem and a Lagrangian relaxation algorithm for its reformulation. An important characteristic of the new Lagrangian relaxation method is that the optimal Lagrangian multiplier yields a critical bottleneck value. Lagrangian relaxation has only one Lagrangian multiplier, which can only take on a limited number of values, making the search for the optimal multiplier easy. The interpretation of the optimal Lagrangian parameter is that its value is equal to the price that must be paid for all objects in the problem to be assigned. 相似文献
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AbstractOn the basis of an exploratory multiple-case qualitative longitudinal study in the fashion industry, this article describes how digital technologies enabled choices among different types of supply chain governance. In doing so, this study responds to calls for governance-oriented longitudinal explorations and suggests an alternative path of governance choices in which the digital technologies become the platform that allows a dynamic discourse between outsourcer and outsourcee. Our results show that, when firms decide to leverage their performances through the adoption of information technology, they need to define their knowledge transfer capacities in order to adopt the appropriate type of governance model. With this article, we contribute to the global value chain literature adding to the knowledge transfer dimension. 相似文献
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Joseph G. Altonji Anthony A. Smith Ivan Vidangos 《Econometrica : journal of the Econometric Society》2013,81(4):1395-1454
In this paper, we use indirect inference to estimate a joint model of earnings, employment, job changes, wage rates, and work hours over a career. We use the model to address a number of important questions in labor economics, including the source of the experience profile of wages, the response of job changes to outside wage offers, and the effects of seniority on job changes. We also study the dynamic response of wage rates, hours, and earnings to various shocks, and measure the relative contributions of the shocks to the variance of earnings in a given year and over a lifetime. We find that human capital accounts for most of the growth of earnings over a career, although job seniority and job mobility also play significant roles. Unemployment shocks have a large impact on earnings in the short run, as well as a substantial long‐term effect that operates through the wage rate. Shocks associated with job changes and unemployment make a large contribution to the variance of career earnings and operate mostly through the job‐specific error components of wages and hours. 相似文献