Developing an underlying inflation gauge for China. Bruegel Working Paper 2014/11, 9 October 2014

This paper develops a new underlying inflation gauge (UIG) for China which differentiates between trend and noise, is available daily and uses a broad set of variables that potentially influence inflation. Its construction follows the works at other major central banks, adopts the methodology of a dynamic factor model that extracts the lower frequency components as developed by Forni et al (2000) and draws on the experience of the People’s Bank of China in modelling inflation.

Inflation and Unemployment In EMU and the United States. ACES Working Papers No. 10, 2008

The original purpose of this paper was to see why the Phillips Curve numbers seem to be so much worse for the EMU countries than the United States since EMU was began operation in 1990. The problem is that there is no evidence of a Phillips curve relationship in EMU or in the United States during this seventeen year period. As can be seen in Figures 1 and 2, it just is not there. In about half the years unemployment and inflation moved in the opposite direction, as Phillips would predict, but in other half of the years they moved in the same direction. This may be a matter of time lags, with unemployment lagging inflation, but it seems clear that the Phillips curve is a poor tool for explaining these year to year outcomes in Europe or the United States.

Determinants of Growth and Inflation in Southern Mediterranean Countries. MEDPRO Technical Report No. 10/March 2012

Despite significant economic reforms in many Southern Mediterranean EU neighbour countries, their growth performance has on average been subdued. This study analyses the differences in growth performance and macroeconomic stability across Mediterranean countries, to draw lessons for the future. The main findings are that Southern Mediterranean countries should benefit from closer ties with the EU that result in higher levels of trade and FDI inflows, once the turbulence of the ‘Arab Spring’ is resolved, and from the development of financial markets and infrastructure. They will also benefit in keeping inflation under control, which will depend in great part on their ability to maintain fiscal discipline and sustainable current accounts. One of the main challenges for the region will be to implement structural reforms that can help them absorb a large pool of unemployed without creating upward risks to inflation.

The simple macroeconomics of North and South in EMU. Bruegel Working Paper 2012/12, 30 July 2012

The euro area today consists of a competitive, moderately leveraged North and an uncompetitive, over-indebted South. Its main macroeconomic challenge is to carry out the adjustment required to restore the competitiveness of its southern part and eliminate its excessive public and private debt burden. This paper investigates the relationship between fiscal and competitiveness adjustment in a stylised model with two countries in a monetary union, North and South. To restore competitiveness, South implements a more restrictive fiscal policy than North. We consider two scenarios. In the first, monetary policy aims at keeping inflation constant in the North. The South therefore needs to deflate to regain competitiveness, which worsens the debt dynamics. In the second, monetary policy aims at keeping inflation constant in the monetary union as a whole. This results in more monetary stimulus, inflation in the North is higher, and this in turn helps the debt dynamics in the South. Our main findings are: •The differential fiscal stance between North and South is what determines real exchange rate changes. South therefore needs to tighten more. There is no escape from relative austerity. •If monetary policy aims at keeping inflation stable in the North and the initial debt is above a certain threshold, debt dynamics are perverse: fiscal retrenchment is self-defeating; •If monetary policy targets average inflation instead, which implies higher inflation in the North, the initial debt threshold above which the debt dynamics become perverse is higher. Accepting more inflation at home is therefore a way for the North to contribute to restoring debt sustainability in the South. •Structural reforms in the South improve the debt dynamics if the initial debt is not too high. Again, targeting average inflation rather than inflation in the North helps strengthen the favourable effects of structural reforms.

Intra-Euro rebalancing is inevitable, but insufficient. Bruegel Policy Contribution 2012/15, August 2012

Greece, Portugal and Spain face a serious risk of external solvency due to their close to minus 100 percent of GDP net negative international investment positions, which are largely composed of debt. The perceived inability of these countries to rebalance their external positions is a major root of the euro crisis. Intra-euro rebalancing through declines in unit labour costs (ULC) in southern Europe, and ULC increases in northern Europe should continue, but has limits because: The share of intra-euro trade has declined. Intra-euro trade balances have already adjusted to a great extent. The intra-euro real exchange rates of Greece, Portugal and Spain have also either already adjusted or do not indicate significant appreciations since 2000. There are only two main current account surplus countries, Germany and the Netherlands. A purely intra-euro adjustment strategy would require too-significant wage increases in northern countries and wage declines in southern countries, which do not seem to be feasible. Before the crisis, the euro was significantly overvalued despite the close-to balanced current account position. The euro has depreciated recently, but more is needed to support the extra-euro trade of southern euro-area members. A weaker euro would also boost exports, growth, inflation and wage increases in Germany, thereby helping further intra-euro adjustment and the survival of the euro.