Lukas Menkhoff, Lucio Sarno , Maik Schmeling, Andreas Schrimpf, 30 June 2016

Determining ‘currency value’ is a century-old topic on which there is little consensus among economists. This column proposes a novel way of adjusting real exchange rates for key country-specific fundamentals to obtain better gauges of currency valuation levels. Adjusting for productivity, export quality, foreign assets, and output gaps is shown to isolate information related to currency risk premia across countries. This can serve as a more precise input into investment and policy decisions.

André Sapir, 12 February 2016

Misalignments of real exchange rates continue to be the most visible and painful symptom of asymmetric shocks within the Eurozone. An important factor behind such misalignment is the difference in national wage formation and bargaining systems, especially between core and periphery members. This column argues that all members need to have institutions that ensure wage developments are in line with productivity developments. This would eliminate an important source of asymmetric behaviour and reduce resistance to EZ-wide fiscal mechanisms capable of absorbing asymmetric shocks.

Alberto Cavallo, Brent Neiman, Roberto Rigobon, 29 November 2013

During the recent turmoil in the Eurozone, little attention has been paid to one of the euro’s founding objectives – price convergence. This column argues that the euro has in fact been very successful in this regard. In a study of the pricing behaviour of Apple, IKEA, H&M, and Zara, the authors find that price dispersion is 30–50% lower for countries in a currency union than for those with a fixed exchange rate.

Uri Dadush, Zaahira Wyne, 20 April 2012

The current gyrations of sentiment over government-bond spreads in the Eurozone are generating much commentary. Yet this column argues they are diverting attention from the real issue – the Eurozone periphery needs a big realignment towards the tradable sector to reignite growth sustainably. It adds that EU policies have made little progress, casting doubt on whether the adjustment can succeed.

Marc Auboin, Michele Ruta, 13 November 2011

Real exchange rates are a headache for policymakers. Sometimes they move around too much, disrupting trade and harming business, sometimes they don’t move enough, leaving economies with fewer options for growth. This column reviews the literature on the effects of exchange-rate volatility and how to deal with them.