From the abstract to a new OECD Development Center working paper, by Marcus Kappler, Helmut Reisen, Moritz Schularick and Edouard Turkisch, the results of a large, cross-country study based upon a narrative approach to identifying appreciation episodes:
The study shows that currency appreciations can help to a certain extent in reducing global imbalances, and that it can go along with a shift from a mainly export-based model of growth towards a model with internal sources of growth. The cost in terms of growth would be very limited in the case of developed countries, but somewhat larger for developing countries.