Offshoring, total factor productivity and skill-biased technological change

The paper answers two questions simultaneously. What is the effect of offshoring on firms' total factor productivity? What is the effect of offshoring on skill-biased technological change? We estimate a model of firm production that allows for the effect of offshoring on both total factor productivity and relative skilled labor productivity, and for spillovers between the two. The model is fitted to Swedish firm-level data between 2001-2011. We find positive effects of offshoring intensity on total factor productivity, particularly of small domestic firms and large foreign-owned firms, and on skill-biased technological change in production of firms with low offshoring intensity. Initiating offshoring results in skill-biased technological change in non-production activities of large domestic firms. We show that evaluating the impact of offshoring in a unified framework has implications for the estimation results

A Service of zbw Offshoring, total factor productivity and skill-biased technological change Offshoring, Total Factor Productivity and Skill- Biased Technological Change Offshoring, Total Factor Productivity and Skill-Biased Technological Change

Standard-Nutzungsbedingungen: Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden. Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen. Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. Abstract. The paper answers two questions simultaneously. What is the effect of offshoring on firms' total factor productivity? What is the effect of offshoring on skill-biased technological change? We estimate a model of firm production that allows for the effect of offshoring on both total factor productivity and relative skilled labor productivity, and for spillovers between the two. The model is fitted to Swedish firm-level data between 2001-2011. We find positive effects of offshoring intensity on total factor productivity, particularly of small domestic firms and large foreign-owned firms, and on skill-biased technological change in production of firms with low offshoring intensity. Initiating offshoring results in skill-biased technological change in non-production activities of large domestic firms. We show that evaluating the im- Terms of use: Documents i

The subsystems design of methods for solving a problem of non-stationary waves propagation in solid bodies

In this paper is considered the design of information subsystem of method bicharacteristics, and also their numerical solution and computer visualization. The bicharacteristics method is one of the most convenient methods for software creating. This information subsystem combines the results of the solutions of practical tasks in the dynamics of a homogeneous elastic media, with the aim of creating digital collections for use in calculations of building constructions in engineering practice and also in problems of mechanical engineering and in general for researches in respective industries

Chaos in economic models with exogenous shocks

We investigate the generation of chaos in economic models through exogenous shocks. The perturbation is formulated as a pulse function where either values or instants of discontinuity are chaotically behaved. We provide a rigorous proof of the existence of chaos in the perturbed model. The analytical results are applied to Kaldor-Kalecki-type models of the aggregate economy subject to export and rainfall shocks, respectively. Simulations are used to demonstrate the emergence and the control of chaos. Our results shed light on a novel source of chaos in economic models and have important implications for policy-making

Using Machine Learning to Analyze the Learning Process for Solving Mathematical Problems

The relevance of the research under consideration is due to the need to improve the efficiency of the analysis of the quality, and completeness of the knowledge obtained by students when solving computational problems, the example problems in mathematics. The theoretical argumentation is proposed and the practical implementation of an intelligent automated analytical system for analyzing the quality and forecasting the content of educational material and the trajectories of the student's learning direction is described. The relevance of the research is the creation of neural network algorithms that allow analyzing the dynamics of changes in the student's level of formation of skills to solve arithmetic problems. The methods of analyzing the assimilation of educational information and methods of personalized construction of the curriculum for each student are substantiated

Aluminum foil as a substrate for metal enhanced fluorescence of bacteria labelled with quantum dots, shows very large enhancement and high contrast

Very high surface/metal enhanced fluorescence was observed for E. coli single bacteria cells labeled with composite CdSeS/ZnS quantum dots (QDs) on three substrates: aluminum foil, aluminum film and gold film. The enhancement factors relative to maximum fluorescence intensity on glass for those substrates were in the range of several hundred (up to 500) for two-excitation wavelengths 532 and 633 nm. Contrast as a ratio of signals from QD labeled to signals of QD unlabeled (control) cells was also in the range of 100 s for those substrates and the highest contrast of 370 was observed on Al film. When CdTe QDs were used for labelling cells on all substrates or when fluorescence from cells with both QDs was measured on silver film, low or no enhancement was observed. Overall, untreated aluminum foil demonstrated great potential as low-cost substrate for surface/metal enhanced fluorescence, which delivers even more reproducible signal than gold film

SANDWICH SERS IMMUNOASSAY OF HUMAN IMMUNOGLOBULIN ON SILICON WAFER COMPARED TO TRADITIONAL SERS SUBSTRATE, GOLD FILM

Likely the first application of silicon wafer as a substrate for sandwich immunoassay with Surface Enhanced Raman Scattering (SERS) detection is reported hereafter. Human immunoglobulin (hIgG) was used as a model biomarker in the simultaneous comparative assay on gold film and on Si wafer, an alternative (less expensive and potentially more resistant to surface contamination and non-specific binding) substrate. The Limits of Detection calculated from the data obtained with two-laser wavelength (633 nm and 785 nm) were about 1 × 10−12 mol of antigen or less for both substrates, which is close to the minimal detectable concentration of 30 pM. An approximately logarithmic response was observed across at least a factor of 133 in the dynamic range 0.03–4 nM. However, if four parametric logistic curve is used for the calibration, LOD on silicon would become significantly lower than LOD on gold (3 pM vs 28 pM). A much smaller slope of calibration plot was compensated by a significantly smaller standard deviation in the signal of the blank for the assay on silicon, as compared to the assay on gold. This report may encourage researchers to try silicon or other non-noble metal materials as SERS substrates for the detection of biomarkers

Formation of readiness of future teachers to creative activity in school

Research objective is to reveal the level of readiness for future teachers to creative activity at school and to provide its realization with the author's methods. The model and an author's methods of formation of readiness at future teachers to creative activity at school are developed. The practical value of work is that the developed model of readiness at future teachers to creative activity at school, the methods of consecutive work on formation of this readiness, the methods of diagnostics of readiness can be used in teaching practice of pedagogical higher education institutions, and also by teachers of comprehensive schools.El objetivo de la investigación es revelar el nivel de preparación para los futuros profesores a la actividad creativa en la escuela y proporcionar su realización con los métodos del autor. Se desarrollan el modelo y los métodos del autor de la preparación de los futuros maestros para la actividad creativa en la escuela. El valor práctico del trabajo es que el modelo desarrollado de preparación de futuros profesores para la actividad creativa en la escuela, los métodos de trabajo consecutivo sobre la formación de esta disposición, los métodos de diagnóstico de la preparación pueden utilizarse en la práctica docente de las instituciones pedagógicas de educación superior, y también por maestros de escuelas integrale