Bulletin n. 3/2007
December 2007
CONTENTS
  • Section A) The theory and practise of the federal states and multi-level systems of government
  • Section B) Global governance and international organizations
  • Section C) Regional integration processes
  • Section D) Federalism as a political idea
    • Demertzisa Maria , Hallett Andrew Hughes
    Central Bank transparency in theory and practice
    in Journal of Macroeconomics , Volume 29, Issue 4 ,  2007 ,  760-789
    We study the effects of Central Bank transparency on inflation and the output gap. Our intention is to illustrate, with the help of a small analytical model, how an imperfectly transparent Central Bank affects the two main macroeconomic variables, inflation and the output gap. The model tells us that transparency affects the variability of inflation and output but not their average levels. Then we examine the extent to which this conjecture is justified by the index of transparency constructed by Eijffinger and Geraats. Given the limitations of such indices, we only examine the correlations between the index of transparency and the macro variables in question. This analysis shows that the average magnitudes are not affected by transparency but their variability is. In the case of inflation, its variability benefits from the reduction of transparency and about 50% is explained by the variability in the transparency index. The effect on output volatility on the other hand is less clear, and in any case transparency seems to increase it rather than decrease it.
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