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DEPARTMENT OF ECONOMICS

AAU1/...Department of Economics2/Quantitative Economics Division (QED)3/Research Projects4/GLASS – The Global Augmented State Space Error Correction Model (FWF Project No. I-5571)

GLASS - The Global Augmented State Space Error Correction Model (FWF Project No. I-5571)

GLASS – Global Augmented State Space Error Correction Model

Project Leadership

Martin Wagner

Project Staff

Christian Zwatz, Dietmar Bauer

Duration

2022-2025

Funding

Fond zur Förderung der wissenschaftlichen Forschung (FWF)

GLASS - The Global Augmented State Space Error Correction Model: Structure Theory, Estimation and Inference

Wider research context/theoretical framework
GLASS deals with developing tools to combine and extend two prominent model classes for multicountry, -regional or -sectoral models, which have gained increasing prominence due to (i) increased economic and financial integration, (ii) the increased availability of large-scale (multi-country) data sets and (iii) advances in high-dimensional econometric modelling. Modelling advances have occurred in both economic theory-driven as well as in reduced form time series models.

Hypotheses/research questions/objectives
The project (i) explores the linkages between and (ii) extends two prominent model classes for highdimensional modelling: (semi-structural) global vector autoregressive (GVAR) and (reduced form) generalized dynamic factor models (GDFMs). GVAR models achieve complexity reduction by imposing substantial restrictions on the impacts of the variables of other countries on the dynamics in any considered country. The corresponding restrictions rely upon – potentially unrealistic – exogeneity restrictions and furthermore limit the flexibility of long-run (cointegration) modelling. GDFMs are very efficient in complexity reduction (i.e., in tackling the curse of dimensionality), but suffer with respect to interpretability and the potential of structural analysis from their reduced form character and the reliance upon statistically identified common factors.

Approach/methods
GLASS allows to put the two model classes into a common framework by assuming that all variables are jointly generated by a vector moving average (VARMA) process, which also provides an important extension of the GVAR model class. The project develops and uses appropriate Global Augmented State Space (GLASS) models to (i) address open issues with respect to exogeneity and cointegration properties in GVAR-type models in an extended model-class that is invariant to linear transformations and (ii) to investigate in detail the relationships between (VARMA) GDFMs and GLASS-type models.The structure of state space models with the latent (potentially low-dimensional) state vector describing the dynamics of the observables is very similar to the structure of GDFMs; providing the
entry point for studying the relationships. A key issue to be addressed to study the links across model classes is a detailed understanding of both finite-N (in GVAR settings) as well as N-asymptotic (GDFMs) properties and their interrelationships.

Level of originality/innovation
Based upon the structure theory, GLASS will develop de novo estimation and inference tools allowing for structural analysis in high-dimensional cointegrated systems. The developed procedures and tools will be made available to the public by means of well-tested and robust code. GLASS is a highdimensional and structural extension of our earlier project EICIP.

Primary researchers involved
Prof. Dr. Dietmar Bauer, Bielefeld University
Prof. Dr. Martin Wagner, Klagenfurt University

Coorperation Partner

WEAVE – Joint Project mit Universität Bielefeld / Deutsche Forschungsgemeinschaft (DFG)

Further Information

Profilbild
Univ.-Prof. Dipl.-Ing. Dr. Martin Wagner
E-Mail:
Martin [dot] Wagner [at] aau [dot] at

Supported by funds of the Austrian Science Fund (FWF): Project number: I-5571

  • Department of Economics
    • Latest tweet
    • Quantitative Economics Division (QED)
      • Team
        • Blüschke Dmitri
        • Kheifets Igor
        • Konstantopoulos Alexandros
        • Kopetzky Christina
        • Scholz Michael
        • Veldhuis Sebastian
        • Wagner Martin
        • Zwatz Christian
      • Research Projects
        • GLASS – Global Augmented State Space Error Correction Model (FWF Project No. I-5571)
        • Instability and Nonlinearity of Long-Run Money Demand: Econometric Theory and Empirical Analysis (OeNB Project No. 18692)
        • Public Spending and Fiscal Multipliers Under Various Policy Mixes (FWF Project No. I-2764)
        • Optimal Control of Nonlinear Dynamic Stochastic Models (FWF Project No. T1012-GBL)
        • Österreichs Nationalökonom/inn/en und der Nationalsozialismus (OeNB Project No. 16755)
      • Econometrics (MDPI Journal)
    • Microeconomics and Game Theory (MGT)
      • Team
        • Salim Claudia
        • Schweinzer Paul
        • Wohlgemuth Norbert
      • Research Projects
        • A theory of entrepreneurship (FWF- Project No. P31248-G27)
        • Systematic errors in team selection problems (OeNB-Project No. 17663)
      • Journal of Mechanism and Institution Design
    • Study
    • 3rd Summer School on Modern Topics in Time Series Analysis
    • The Karl Popper Kolleg
    • Cooperations

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