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Random walk
Authors: ---
ISBN: 9780511750854 9780521519182 9780511750113 0511750110 9780511743566 0511743564 9780511744655 051174465X 0511750854 0521519187 9780511742491 0511742495 1107207126 1282631675 9786612631672 0511749368 Year: 2010 Publisher: Cambridge New York Cambridge University Press

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Random walks are stochastic processes formed by successive summation of independent, identically distributed random variables and are one of the most studied topics in probability theory. This contemporary introduction evolved from courses taught at Cornell University and the University of Chicago by the first author, who is one of the most highly regarded researchers in the field of stochastic processes. This text meets the need for a modern reference to the detailed properties of an important class of random walks on the integer lattice. It is suitable for probabilists, mathematicians working in related fields, and for researchers in other disciplines who use random walks in modeling.


Book
Why Are Developing Countries So Slow in Adopting New Technologies? : The Aggregate and Complementary Impact of Micro Distortions
Authors: --- ---
Year: 2010 Publisher: Washington, D.C., The World Bank,

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This paper explores how developmental and regulatory impediments to resource reallocation limit the ability of developing countries to adopt new technologies. An efficient economy innovates quickly; but when the economy is unable to redeploy resources away from inefficient uses, technological adoption becomes sluggish and growth is reduced. The authors build a model of heterogeneous firms and idiosyncratic shocks, where aggregate long-run growth occurs through the adoption of new technologies, which in turn requires firm destruction and rebirth. After calibrating the model to leading and developing economies, the authors analyze its dynamics in order to clarify the mechanism based on firm renewal. The analysis uses the steady-state characteristics of the model to provide an explanation for long-run output gaps between the United States and a large sample of developing countries. For the median less-developed country in the sample, the model accounts for more than 50 percent of the income gap with respect to the United States, with 60 percent of the simulated gap being explained by developmental and regulatory barriers taken individually, and 40 percent by their interaction. Thus, the benefits from market reforms are largely diminished if developmental and regulatory distortions to firm dynamics are not jointly addressed.


Book
Why Are Developing Countries So Slow in Adopting New Technologies? : The Aggregate and Complementary Impact of Micro Distortions
Authors: --- ---
Year: 2010 Publisher: Washington, D.C., The World Bank,

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Abstract

This paper explores how developmental and regulatory impediments to resource reallocation limit the ability of developing countries to adopt new technologies. An efficient economy innovates quickly; but when the economy is unable to redeploy resources away from inefficient uses, technological adoption becomes sluggish and growth is reduced. The authors build a model of heterogeneous firms and idiosyncratic shocks, where aggregate long-run growth occurs through the adoption of new technologies, which in turn requires firm destruction and rebirth. After calibrating the model to leading and developing economies, the authors analyze its dynamics in order to clarify the mechanism based on firm renewal. The analysis uses the steady-state characteristics of the model to provide an explanation for long-run output gaps between the United States and a large sample of developing countries. For the median less-developed country in the sample, the model accounts for more than 50 percent of the income gap with respect to the United States, with 60 percent of the simulated gap being explained by developmental and regulatory barriers taken individually, and 40 percent by their interaction. Thus, the benefits from market reforms are largely diminished if developmental and regulatory distortions to firm dynamics are not jointly addressed.

A primer for unit root testing.
Author:
ISBN: 9781403902047 9781403902054 Year: 2010 Publisher: Basingstoke Palgrave Macmillan

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Keywords

Econometrics. --- Random walks (Mathematics) --- Time-series analysis. --- Brownsche Bewegung. --- Économétrie. --- Irrfahrtsproblem. --- Ökonometrisches Modell. --- Séries chronologiques. --- Stationärer Prozess. --- Statistischer Test. --- économétrie --- série temporelle - analyse. --- AA / International- internationaal --- 305.970 --- 305.975 --- 305.971 --- Algemeenheden: Autoregression and moving average representation. ARIMA. ARMAX. Lagrange multiplier. Wald. Function (mis) specification. Autocorrelation. Homoscedasticity. Heteroscedasticity. ARCH. GARCH. Integration and co-integration. Unit roots. --- Monte Carlo methods. Experimenten en resultaten. --- Speciale gevallen in econometrische modelbouw. --- Random walks (Mathematics). --- Série temporelle - analyse. --- Econometrics --- Time-series analysis --- Analysis of time series --- Autocorrelation (Statistics) --- Harmonic analysis --- Mathematical statistics --- Probabilities --- Additive process (Probability theory) --- Random walk process (Mathematics) --- Walks, Random (Mathematics) --- Stochastic processes --- Economics, Mathematical --- Statistics --- Algemeenheden: Autoregression and moving average representation. ARIMA. ARMAX. Lagrange multiplier. Wald. Function (mis) specification. Autocorrelation. Homoscedasticity. Heteroscedasticity. ARCH. GARCH. Integration and co-integration. Unit roots --- Speciale gevallen in econometrische modelbouw --- Monte Carlo methods. Experimenten en resultaten

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