It depends on what that American buys. If that American buys lots of imported things, then a strong dollar is good because imports become relatively cheaper. If that American works at a job that might be outsourced to a foreign country with cheaper labor costs, then a strong dollar is bad because foreign production is relatively cheaper than producing in America.
If that American travels abroad a lot, but is still paid in US dollars, then it would be good because the purchasing power of those dollars is greater. If that American works in an industry that exports goods or services to other countries, then it would be bad to have a stronger dollar because American exports become more expensive relative to those of other nations.
I think the only factual answer that can be given is that there is no sufficient definition of ‘average’ that allows a simple answer to the question. No one is really average - we just all have different methods of production and consumption in an economy, and there’s no way to average an apple buyer and an orange grower into one meaningful number.
A ‘strong’ currency is good if you are travelling abroad, or buying foreign made goods, but bad if you are selling a home grown product overseas.
For the man on the Clapham omnibus, or the average Joe, it probably makes little difference in the short term. In the longer term its best if the exchange rate stays stable.
So the only reasonable answer is ‘it depends’, which is a perfectly good answer. I hear newscasters boast that the dollar is stronger than it was a few years ago, but I don’t know whether to go yeah! or oh no! I guess the appropriate response would be meh.
A strong dollar is also usually(!) evidence of a economy that is performing well overall, or in one sector and prospects continue to look good - confidence. (I.e. for now, a pretty good recovery plus an extremely busy fracking oil production sector) it never hurts to have an economy that is working well.
I echo the “it depends” answers. Are you buying foreign goods and services or trying to sell stuff overseas?
Having said that, the dollar is strong in relation to other currencies. Much of this relates to poor economies in Europe and Asia. Not sure that we should be happy that Europe and Japan are in a recession and that China is slowing down.
Currency movements are not necessarily indicators of much. There are too many unpredictable factors that influence currency movements from day to day. The primary reason the US$ has strengthened recently against other currencies is due to the flight to quality. As other economies struggle, investors (corporations and governments) look to move their excess cash in more stable currencies, i.e. the US$. This causes the demand for to go up resulting in the price of the to go up.
It used to mean something when the US was a producer of goods and exporting those goods… i.e. tools, machinery but all that has been sold out to offshore countries and mexico. Low dollar meant more sales, high dollar; less sales. Now that the only thing the US seems to provide is “services”, not so much.
If the people who buy your debt are overseas a strong dollar makes their purchase more expensive, which can drive down purchases and thus lower the price of the bonds and thus increase the interest rate. If the foreign purchasers are convinced the dollar will continue to strengthen, it might increase the number of buyers.