By Topic

This Finance survey examines (a) The costs and risks associated with a sharp fall in the value of sterling outweigh any macroeconomic benefits for the UK of export stimulus due to a weaker currency; (b) Concerns about government finances and debt sustainability can undermine the reserve currency status of a major currency 

This Finance survey examines (a) The US dollar's status as the dominant reserve currency substantially raises its value; (b) US-led policy interventions that discouraged central banks from holding US treasury securities would substantially diminish the dollar's reserve currency status, (c) US-led policy interventions that led to a sustained weakening in the dollar would substantially damage the US government's ability to finance its deficits 

This Finance survey examines that it seems likely that Japanese authorities intervened in the foreign exchange market recently to prop up the yen – see, for example: https://www.ft.com/content/455784ec-0465-46ee-8c73-fc5ce3e31c37. In such circumstances, intervention refers to purchases or sales of domestic or foreign currency without changing the monetary policy stance (a) Large-scale intervention by public authorities in currency markets can move exchange rates substantially (b) The effectiveness of foreign exchange interventions can last beyond one month