Policymaker's Guide To Playing The Global Currency Wars

G4+CHF can fight the currency wars longer and more aggressively than small G10 and EM countries can.  However, as Citi's Steven Englander notes, it also takes a lot of depreciation to crowd in a meaningful amount of net exports. His bottom line, GBP, CHF and JPY have a lot further to depreciate.  In principle, the USD can easily fall into this category as well, but right now the USD debate is focused on Fed policy – were it to become clear that balance sheet expansion will end well beyond end-2013, the USD would fall into the category of currency war ‘winners’ as well. Critically, though, the reality of currency wars is that policymakers do not use FX as cyclical stimulus because of its effectiveness; they use it because they have hit a wall with respect to the effectiveness of fiscal and monetary policies, and are unwilling to bite the structural policy bullet. The follo...