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DIW Discussion Papers 1356 / 2014
Long-run restrictions have been used extensively for identifying structural shocks in vector autoregressive (VAR) analysis. Such restrictions are typically just-identifying but can be checked by utilizing changes in volatility. This paper reviews and contrasts the volatility models that have been used for this purpose. Three main approaches have been used, exogenously generated changes in the unconditional ...
2014| Helmut Lütkepohl, Anton Velinov
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DIW Discussion Papers 1354 / 2014
In impulse response analysis estimation uncertainty is typically displayed by constructing bands around estimated impulse response functions. These bands may be based on frequentist or Bayesian methods. If they are based on the joint distribution in the Bayesian framework or the joint asymptotic distribution possibly constructed with bootstrap methods in the frequentist framework often individual confidence ...
2014| Helmut Lütkepohl, Anna Staszewska-Bystrova, Peter Winker
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DIW Discussion Papers 1352 / 2014
We analyze the transmission of the financial crisis of 2007 to 2009 to 415 country-industry equity portfolios. We use a factor model to predict crisis returns, defining unexplained increases in factor loadings and residual correlations as indicative of contagion. While we find evidence of contagion from the U.S. and the global financial sector, the effects are small. By contrast, there has been substantial ...
2014| Geert Bekaert, Michael Ehrmann, Marcel Fratzscher, Arnaud Mehl
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DIW Discussion Papers 1351 / 2014
Large panels of variables are used by policy makers in deciding on policy actions. Therefore it is desirable to include large information sets in models for economic analysis. In this survey methods are reviewed for accounting for the information in large sets of variables in vector autoregressive (VAR) models. This can be done by aggregating the variables or by reducing the parameter space to a manageable ...
2014| Helmut Lütkepohl
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DIW Discussion Papers 1350 / 2013
Structural identification schemes are of essential importance to vector autoregressive (VAR) analysis. This paper tests a commonly used structural parameter identification scheme to assess whether it can properly capture fundamental and non-fundamental shocks to stock prices. In particular, five related structural models, which are widely used in the literature on assessing stock price determinants ...
2013| Anton Velinov
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DIW Discussion Papers 1343 / 2013
Are capital controls and macroprudential measures successful in achieving their objectives? Assessing their effectiveness is complicated by selection bias and endogeneity; countries which change their capital-flow management measures (CFMs) often share specific characteristics and are responding to changes in variables that the CFMs are intended to influence. This paper addresses these challenges by ...
2013| Kristin Forbes, Marcel Fratzscher, Roland Straub
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DIW Discussion Papers 1304 / 2013
The paper analyses the global spillovers of the Federal Reserve's unconventional monetary policy measures. First, we find that Fed measures in the early phase of the crisis (QE1), but not since 2010 (QE2), were highly effective in lowering sovereign yields and raising equity markets in the US and globally across 65 countries. Yet Fed policies functioned in a procyclical manner for capital flows to ...
2013| Marcel Fratzscher, Marco Lo Duca, Roland Straub
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DIW Discussion Papers 1302 / 2013
This paper takes a financial market perspective in examining the relationship between oil prices, the US dollar and asset prices, and it exploits the heteroskedasticity for the identification of causality in a multifactor model. It finds a bidirectional causality between the US dollar and oil prices since the early 2000s. Moreover, both oil prices and the US dollar are significantly affected by changes ...
2013| Marcel Fratzscher, Daniel Schneider, Ine Van Robays
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DIW Discussion Papers 1292 / 2013
In vector autoregressive analysis confidence intervals for individual impulse responses are typically reported to indicate the sampling uncertainty in the estimation results. A range of methods are reviewed and a new proposal is made for constructing joint confidence bands, given a prespecified coverage level, for the impulse responses at all horizons considered simultaneously. The methods are compared ...
2013| Helmut Lütkepohl, Anna Staszewska-Bystrova, Peter Winker
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DIW Discussion Papers 1290 / 2013
This paper provides an empirical test of the scapegoat theory of exchange rates (Bacchetta and van Wincoop 2004, 2011). This theory suggests that market participants may at times attach significantly more weight to individual economic fundamentals to rationalize the pricing of currencies, which are partly driven by unobservable shocks. Using novel survey data which directly measure foreign exchange ...
2013| Marcel Fratzscher, Lucio Sarno, Gabriele Zinna