The ‘Visible Hand’ of the ECB’s Quantitative Easing. CEPS Working Document No. 407/May 2015

Quantitative easing à la ECB has produced so far an impact on long-term nominal rates through ex ante channels: signalling channels, term duration channels, and risk premia channels. The term duration channel will also lead to a lengthening of the average maturity of government debts, with possible implications for fiscal policy. The ECB’s determination to buy government bonds in a fragmented market with a low net supply may also produce an ex post impact, during the actual asset purchases, but less on nominal rates and more on financial plumbing, as recent volatility suggests. As the effects of scarce supply in collateral markets are felt, repo rates remain well below zero. Lower supply and limited re-usability of high quality collateral, capped by regulatory requirements, is a constraint on market liquidity and compresses dealers’ balance sheets. By keeping a depressed yield curve and asset prices high, QE may also accelerate the consolidation of both traditional and capital-market based (dealer) bank business models. What is less clear is how these changing business models will interact with the sharp rise of the asset management industry in the aftermath of the crisis, which raises questions about the implications for global collateral flows and deposit-like funding channels.

Squaring the cycle: capital flows, financial cycles, and macro-prudential policy in the euro area. Bruegel Working Paper 2015/14, November 2015

• Before the financial and economic crisis, monetary policy unification and interest rate convergence resulted in the divergence of euroarea countries’ financial cycles. This divergence is deeply rooted in the financial integration spurred by currency union and strongly correlated with intra-euro area capital flows. Macro-prudential policy will need to deal with potentially divergent financial cycles, while catering for potential cross-border spillovers from domestic policies, which domestic authorities have little incentive to internalise. • The current framework is unfit to deal effectively with these challenges. The European Central Bank should be responsible for consistent and coherent application of macro-prudential policy, with appropriate divergences catering for national differences in financial conditions. The close link between domestic financial cycles and intra-euro area capital flows raises the question of whether macro-prudential policy in the euro area can be compatible with free flows of capital. Financial cycle divergence had its counterpart in the build-up of macroeconomic imbalances, so effective implementation of the Macroeconomic Imbalance Procedure would support and strengthen macro-prudential policy.

Self-Fulfilling Crises in the Eurozone: An Empirical Test. CEPS Working Document No. 366, 22 June 2012

This paper tests the hypothesis that government bond markets in the eurozone are more fragile and more susceptible to self-fulfilling liquidity crises than in stand-alone countries. We find evidence that a significant part of the surge in the spreads of the PIGS countries (Portugal, Ireland, Greece and Spain) in the eurozone during 2010-11 was disconnected from underlying increases in the debt-to-GDP ratios and fiscal space variables, and was the result of negative self-fulfilling market sentiments that became very strong since the end of 2010. We argue that this can drive member countries of the eurozone into bad equilibria. We also find evidence that after years of neglecting high government debt, investors became increasingly worried about this in the eurozone, and reacted by raising the spreads. No such worries developed in stand-alone countries despite the fact that debt-to-GDP ratios and fiscal space variables were equally high and increasing in these countries.