The Wall Street Journal recently wrote:
Figure 1: U.S. DOLLAR INDEX (LAST THREE YEARS)
TABLE 1: RELATIVE PERFORMANCE OF SELECTED MAJOR FOREIGN CURRENCIES
Analysts note that the dollar’s decline has been somewhat surprising in the face of the Federal Open Market Committee’s plan for raising rates and the impetus for U.S. growth expected from the recent tax cuts.
On the flip side, they point to the acceleration of growth around the globe (especially emerging markets), the potential interest-rate increases to come from foreign central banks, and the resurgence of positive sentiment in the eurozone.
CNNMoney recently cited issues in Washington as a possible contributory factor for the dollar’s weakness:
The CNNMoney report, however, notes that President Trump on numerous occasions in 2017 remarked that he would not be upset by some weakness in the U.S. dollar. This has made U.S. goods and services more competitive in the global marketplace, further adding to the bottom lines of major U.S. multinational companies.
They concluded, “It’s true that a continued (and steeper) decline in the dollar could eventually become a problem. … But that scenario seems unlikely anytime soon. Despite the wackiness in Washington, most global investors still view the dollar as the world’s most stable reserve currency.”