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The effects of variance breaks on homogenous panel unit root tests
Herwartz, Helmut; Siedenburg, Florian - 2009
Noting that many economic variables display occasional shifts in their second order moments, we investigate the performance of homogenous panel unit root tests in the presence of permanent volatility shifts. It is shown that in this case, panel unit root tests derived under time invariant...
Persistent link: https://www.econbiz.de/10003887238
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An empirical study on causes and consequences of inflation and inflation uncertainty
Hartmann, Matthias - 2012
Empirical study of causality between inflation, inflation uncertainty and other macroeconomicy quantities. Additionally, the issue of how to measure the unobservable inflation uncertainty is addressed.
Persistent link: https://www.econbiz.de/10009671994
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State dependence in the finance-growth nexus : a functional coefficient approach
Herwartz, Helmut; Yabibal Mulualem Walle - 2013
Noting that "one size does not fit all" in the case of the finance-growth (FG) nexus, a growing body of literature has recently focused on uncovering economic conditions under which financial development could be beneficial (detrimental) to economic development. We look into these conditions by...
Persistent link: https://www.econbiz.de/10009752169
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A new approach to bootstrap inference in functional coefficient models
Herwartz, Helmut (contributor); Fang, Xu (contributor) - 2007
We introduce a new, factor based bootstrap approach which is robust under heteroskedastic error terms for inference in functional coefficient models. Modeling the functional coefficient parametrically, the bootstrap approximation of an F statistic is shown to hold asymptotically. In simulation...
Persistent link: https://www.econbiz.de/10003477963
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Micro data, heterogeneity and the evaluation of public policy : Part 2
Heckman, James J. - In: The American economist : journal of Omnicron Delta … 49 (2005) 1, pp. 16-44
Persistent link: https://www.econbiz.de/10003164096
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Openness and the finance-growth nexus
Herwartz, Helmut; Yabibal Mulualem Walle - In: Journal of banking & finance 48 (2014), pp. 235-247
Persistent link: https://www.econbiz.de/10010508139
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Long-run links among money, prices, and output : world-wide evidence
Herwartz, Helmut; Reimers, Hans-Eggert - 2001
analyse this topic by means of a P-star model. Based on the quantity theory of money, this approach explains inflation via a …. Moreover, parameter restrictions for the long-run relationships implied by the monetary theory are tested. Country specific P … Preisniveau und dem realen Output testet. Weiterhin werden die Parameterrestriktionen, die sich durch die monet¨are Theorie …
Persistent link: https://www.econbiz.de/10011419407
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Determinants of the link between financial and economic development : evidence from a functional coefficient model
Herwartz, Helmut; Yabibal Mulualem Walle - In: Economic modelling 37 (2014), pp. 417-427
Persistent link: https://www.econbiz.de/10010417643
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International asset prices : empirical evidence
Morales-Arias, Leonardo - 2009
Persistent link: https://www.econbiz.de/10003869496
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A functional coefficient model view of the FeldsteinHorioka puzzle
Herwartz, Helmut; Fang, Xu - In: Journal of international money and finance 29 (2010) 1, pp. 37-54
Persistent link: https://www.econbiz.de/10003938657