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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

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

The growth effect of democracy : is it heterogenous and how can it be estimated?

Persson, Torsten; Tabellini, Guido Enrico - 2007

We estimate the effect of political regime transitions on growth with semi-parametric methods, combining difference in differences with matching, that have not been used in macroeconomic settings. Our semi-parametric estimates suggest that previous parametric estimates may have seriously...

Persistent link: https://www.econbiz.de/10003484940

A functional coefficient model view of the Feldstein-Horioka puzzle

Herwartz, Helmut (contributor); Fang, Xu (contributor) - 2007

What does the saving-investment (SI) relation really measure and how should the (SI) relation be measured? These are two of the most discussed issues triggered by the so called Feldstein-Horioka puzzle. Based on panel data we introduce a new variant of functional coefficient models that allow to...

Persistent link: https://www.econbiz.de/10003477959

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

Democracy and development : the devil in the details

Persson, Torsten; Tabellini, Guido Enrico - 2006

Persistent link: https://www.econbiz.de/10003292268

Modelling the Fisher hypothesis: World wide evidence

Herwartz, Helmut (contributor); … - 2006

In this paper we follow an empirical approach to examine the implications of the Fisher hypothesis, namely cointegration linking interest rates and inflation, and stationarity of the real interest rate implying in turn homogeneity of the potential equilibrium relation. The considered sample is...

Persistent link: https://www.econbiz.de/10003296858

Forms of democracy, policy and economic development

Persson, Torsten - 2005

Persistent link: https://www.econbiz.de/10002655263

The size and scope of government : comparative politics with rational politicians

Persson, Torsten; Tabellini, Guido Enrico - 1998

Persistent link: https://www.econbiz.de/10001350720

Consequences of constitutions

Persson, Torsten - 2003

Persistent link: https://www.econbiz.de/10001857438