Frances Coppola’s concerns about fixed versus floating exchange rates for developing countries is presumably interesting to some, but it tells us little about the validity of MMT...Bond Economics
This article provides more depth to some comments I made in"MMT and Constraints". I explain why developed countries should allow their currencies to float, which is the policy stance advocated by Modern Monetary Theory (MMT). It is probably a good idea for developing countries to float their currencies as well, but they face inherently difficult policy problems that I do not know enough about to comment on. The implication of advocating a free-floating currency is that I do not see the "external constraint" as being a serious issue, or at least an issue that policy makers can hope to do anything useful about.Bond Economics
In that previous article, I made some quick comments in response to an assertion by Thomas Palley that the "foreign exchange market constraint" is very important for countries other than the United States. Since he did not explain that assertion, I was unable to offer a very detailed criticism. My response was too short, and drew some comments. I expand my explanation here.
I will first explain why I do not think that there is a significant external behavioural constraint on policy makers; but an accounting constraint obviously exists.
I will also note that what I am writing is my opinion, and does not necessarily reflect the views of the economists who developed MMT. I think that poorer countries face some difficulties with free-floating currencies, a view with which they may not agree.
