The Experts below are selected from a list of 243 Experts worldwide ranked by ideXlab platform

Klaus Hubacek - One of the best experts on this subject based on the ideXlab platform.

  • alternative approaches of physical Input Output Analysis to estimate primary material Inputs of production and consumption activities
    Economic Systems Research, 2004
    Co-Authors: Stefan Giljum, Klaus Hubacek
    Abstract:

    In the last few years, a number of studies have been presented that link material flow accounting and Input-Output Analysis (based on monetary Input-Output tables) for the calculation of direct and indirect resource Inputs for production and consumption activities. The compilation of the first physical Input-Output tables for some European countries in the 1990s opened new possibilities for linking physical accounting and Input- Output Analysis. Physical Input-Output Analysis has so far only been applied for selected materials, but it has not been used for comprehensive assessments of material requirements of economic activities. In this paper, possibilities and limits of this new Input-Output approach are clarified. We present and discuss a procedure similar to monetary Input- Output Analysis and develop an alternative approach to account for primary Inputs and waste otherwise not included in the Analysis. Based on aggregated Input-Output tables for Germany, we present numerical examples intended to compare the alternative approaches of physical Input-Output Analysis.

  • applying physical Input Output Analysis to estimate land appropriation ecological footprints of international trade activities
    Ecological Economics, 2003
    Co-Authors: Klaus Hubacek, Stefan Giljum
    Abstract:

    In the last few years some studies have been presented, which link land use accounting and Input–Output Analysis (based on monetary Input–Output tables (MIOTs)) for the calculation of direct and indirect land appropriation of production and consumption activities. The compilation of the first comprehensive physical Input–Output tables (PIOTs) for some western European countries in the 1990s opened new possibilities for linking physical accounting and Input–Output Analysis. Using a physical multiplier for this kind of calculation is more appropriate, as the most land intensive sectors are also the sectors with the highest amounts of material flows. Physical Input–Output Analysis illustrates land appropriation in relation to material flows of each of the sectors, which is more appropriate from the point of view of environmental pressures than land appropriation in relation to monetary flows of a MIOT. Physical Input–Output Analysis has so far not been applied for any land-related studies. Based on a physical Input–Output model of the EU-15, physical Input–Output Analysis is applied in this paper, in order to calculate direct and indirect land requirements for the production of exports from EU-15 to the rest of the world.

Mihailo R Jovanovic - One of the best experts on this subject based on the ideXlab platform.

  • Input Output Analysis of high speed axisymmetric isothermal jet noise
    Physics of Fluids, 2016
    Co-Authors: Jinah Jeun, Joseph W Nichols, Mihailo R Jovanovic
    Abstract:

    We use Input-Output Analysis to predict and understand the aeroacoustics of high-speed isothermal turbulent jets. We consider axisymmetric linear perturbations about Reynolds-averaged Navier-Stokes solutions of ideally expanded turbulent jets with jet Mach numbers 0.6 < Mj < 1.8. For each base flow, we compute the optimal harmonic forcing function and the corresponding linear response using singular value decomposition of the resolvent operator. In addition to the optimal mode, Input-Output Analysis also yields sub-optimal modes associated with smaller singular values. For supersonic jets, the optimal response closely resembles a wavepacket in both the near-field and the far-field such as those obtained by the parabolized stability equations (PSE), and this mode dominates the response. For subsonic jets, however, the singular values indicate that the contributions of sub-optimal modes to noise generation are nearly equal to that of the optimal mode, explaining why the PSE do not fully capture the far-fiel...

  • Input Output Analysis of high speed axisymmetric isothermal jet noise
    Physics of Fluids, 2016
    Co-Authors: Jinah Jeun, Joseph W Nichols, Mihailo R Jovanovic
    Abstract:

    We use Input-Output Analysis to predict and understand the aeroacoustics of high-speed isothermal turbulent jets. We consider axisymmetric linear perturbations about Reynolds-averaged Navier-Stokes solutions of ideally expanded turbulent jets with jet Mach numbers 0.6 < Mj < 1.8. For each base flow, we compute the optimal harmonic forcing function and the corresponding linear response using singular value decomposition of the resolvent operator. In addition to the optimal mode, Input-Output Analysis also yields sub-optimal modes associated with smaller singular values. For supersonic jets, the optimal response closely resembles a wavepacket in both the near-field and the far-field such as those obtained by the parabolized stability equations (PSE), and this mode dominates the response. For subsonic jets, however, the singular values indicate that the contributions of sub-optimal modes to noise generation are nearly equal to that of the optimal mode, explaining why the PSE do not fully capture the far-fiel...

Stefan Giljum - One of the best experts on this subject based on the ideXlab platform.

  • alternative approaches of physical Input Output Analysis to estimate primary material Inputs of production and consumption activities
    Economic Systems Research, 2004
    Co-Authors: Stefan Giljum, Klaus Hubacek
    Abstract:

    In the last few years, a number of studies have been presented that link material flow accounting and Input-Output Analysis (based on monetary Input-Output tables) for the calculation of direct and indirect resource Inputs for production and consumption activities. The compilation of the first physical Input-Output tables for some European countries in the 1990s opened new possibilities for linking physical accounting and Input- Output Analysis. Physical Input-Output Analysis has so far only been applied for selected materials, but it has not been used for comprehensive assessments of material requirements of economic activities. In this paper, possibilities and limits of this new Input-Output approach are clarified. We present and discuss a procedure similar to monetary Input- Output Analysis and develop an alternative approach to account for primary Inputs and waste otherwise not included in the Analysis. Based on aggregated Input-Output tables for Germany, we present numerical examples intended to compare the alternative approaches of physical Input-Output Analysis.

  • applying physical Input Output Analysis to estimate land appropriation ecological footprints of international trade activities
    Ecological Economics, 2003
    Co-Authors: Klaus Hubacek, Stefan Giljum
    Abstract:

    In the last few years some studies have been presented, which link land use accounting and Input–Output Analysis (based on monetary Input–Output tables (MIOTs)) for the calculation of direct and indirect land appropriation of production and consumption activities. The compilation of the first comprehensive physical Input–Output tables (PIOTs) for some western European countries in the 1990s opened new possibilities for linking physical accounting and Input–Output Analysis. Using a physical multiplier for this kind of calculation is more appropriate, as the most land intensive sectors are also the sectors with the highest amounts of material flows. Physical Input–Output Analysis illustrates land appropriation in relation to material flows of each of the sectors, which is more appropriate from the point of view of environmental pressures than land appropriation in relation to monetary flows of a MIOT. Physical Input–Output Analysis has so far not been applied for any land-related studies. Based on a physical Input–Output model of the EU-15, physical Input–Output Analysis is applied in this paper, in order to calculate direct and indirect land requirements for the production of exports from EU-15 to the rest of the world.

Jinah Jeun - One of the best experts on this subject based on the ideXlab platform.

  • Input Output Analysis of high speed axisymmetric isothermal jet noise
    Physics of Fluids, 2016
    Co-Authors: Jinah Jeun, Joseph W Nichols, Mihailo R Jovanovic
    Abstract:

    We use Input-Output Analysis to predict and understand the aeroacoustics of high-speed isothermal turbulent jets. We consider axisymmetric linear perturbations about Reynolds-averaged Navier-Stokes solutions of ideally expanded turbulent jets with jet Mach numbers 0.6 < Mj < 1.8. For each base flow, we compute the optimal harmonic forcing function and the corresponding linear response using singular value decomposition of the resolvent operator. In addition to the optimal mode, Input-Output Analysis also yields sub-optimal modes associated with smaller singular values. For supersonic jets, the optimal response closely resembles a wavepacket in both the near-field and the far-field such as those obtained by the parabolized stability equations (PSE), and this mode dominates the response. For subsonic jets, however, the singular values indicate that the contributions of sub-optimal modes to noise generation are nearly equal to that of the optimal mode, explaining why the PSE do not fully capture the far-fiel...

  • Input Output Analysis of high speed axisymmetric isothermal jet noise
    Physics of Fluids, 2016
    Co-Authors: Jinah Jeun, Joseph W Nichols, Mihailo R Jovanovic
    Abstract:

    We use Input-Output Analysis to predict and understand the aeroacoustics of high-speed isothermal turbulent jets. We consider axisymmetric linear perturbations about Reynolds-averaged Navier-Stokes solutions of ideally expanded turbulent jets with jet Mach numbers 0.6 < Mj < 1.8. For each base flow, we compute the optimal harmonic forcing function and the corresponding linear response using singular value decomposition of the resolvent operator. In addition to the optimal mode, Input-Output Analysis also yields sub-optimal modes associated with smaller singular values. For supersonic jets, the optimal response closely resembles a wavepacket in both the near-field and the far-field such as those obtained by the parabolized stability equations (PSE), and this mode dominates the response. For subsonic jets, however, the singular values indicate that the contributions of sub-optimal modes to noise generation are nearly equal to that of the optimal mode, explaining why the PSE do not fully capture the far-fiel...

Thijs Ten Raa - One of the best experts on this subject based on the ideXlab platform.

  • Handbook of Input-Output Analysis
    2017
    Co-Authors: Thijs Ten Raa
    Abstract:

    In this authoritative Handbook, leading experts from international statistical offices and universities explain in detail the treatment and role of Input-Output statistics in the System of National Accounts. Furthermore, they address the derivation of Input-Output coefficients for the purpose of economic and environmental modeling, the building of applied general equilibrium models, the use of these models for efficiency Analysis, and the extensions to stochastic and dynamic Input-Output Analysis. As well as revealing and exploring the theoretical foundations, the Handbook also acts as a useful guide for practitioners.

  • COMPLEMENTARITY IN Input–Output Analysis AND STOCHASTICS
    Economic Systems Research, 2015
    Co-Authors: Thijs Ten Raa, Victoria Shestalova
    Abstract:

    The complementarity between the quantity and value systems of Input–Output Analysis is shown to be the basis of the complementarity problem approach to computable general equilibrium. The numerical superiority of the latter to the linear programming approach facilitates stochastic Analysis of Input–Output scenarios. For the example where Kyoto targets are underachieved to uncertain degrees, confidence intervals are derived for the associated consumption reductions.

  • Neoclassical Input–Output Analysis
    2009
    Co-Authors: Thijs Ten Raa, Pierre Mohnen
    Abstract:

    AbstractThe Canadian comparative advantage is determined by the maximization of foreign earnings, subject to 10 Input–Output relations between 29 industries and 92 commodities. Free trade would boost the mining, quarrying & oil wells, tobacco, and machinery sectors. The structure of the economy is not self-sufficient, as a necessary and sufficient price condition shows. When commodities are aggregated into the 29 sectors, the shadow prices of the programs fulfill the value equations of the Input–Output Analysis and admit a decomposition of Canadian inefficiency in 5% X-inefficiency, 15% allocative inefficiency, and 80% international specialization mismatch.

  • The Economics of Input-Output Analysis
    2006
    Co-Authors: Thijs Ten Raa
    Abstract:

    Input-Output Analysis is the main tool of applied equilibrium Analysis. This textbook provides a systematic survey of the most recent developments in Input-Output Analysis and their applications, helping us to examine questions such as: which industries are competitive? What are the multiplier effects of an investment program? How do environmental restrictions impact on prices? Linear programming and national accounting are introduced and used to resolve issues such as the choice of technique, the comparative advantage of a national economy, its efficiency and dynamic performance. Technological and environmental spillovers are analysed, both at the national level (between industries) and the international level (the measurement of globalisation effects). The book is self-contained, but assumes some familiarity with calculus, matrix algebra, and the microeconomic principle of optimizing behaviour. Exercises and review questions are included at the end of each chapter, and solutions at the end of the book.

  • Neoclassical Input-Output Analysis
    Regional Science and Urban Economics, 1994
    Co-Authors: Thijs Ten Raa, Pierre Mohnen
    Abstract:

    Abstract The Canadian comparative advantage is determined by maximization of foreign earnings subject to Input-Output relations between 29 industries and 92 commodities. Free trade would boost the mining, quarrying & oil wells, tobacco, and machinery sectors. The structure of the economy is not self-sufficient, as a necessary and sufficient price condition shows. When commodities are aggregated to the 29 sectors, the shadow prices to the programs fulfill the value equations of Input-Output Analysis and admit a decomposition of Canadian inefficiency in 5% X -inefficiency, 15% allocative inefficiency, and 80% international specialization mismatch.