What Moves the Dollar? The Four Channels That Set the Exchange Rate

The dollar can sit still for weeks, and then jump in just a few days. Why does that happen? This lesson maps the four channels that together set the exchange rate. With this framework, every currency headline lands in the right place. An exchange rate is a ratio: how many rials for one dollar. Channel one is the supply and demand balance, driven by export income. Channel two comes from the rial side. Money supply grew about fifty two percent in Ordibehesht fourteen oh five. Channel three is expectations; part of tomorrow is priced in today. Channel four is political and sanctions shocks, which move both other channels. Suppose the money supply grows fifty percent while currency inflow stays flat. The hypothetical rate moves from one hundred to one hundred fifty, with no currency market event. At midday on the twenty sixth of July, the free and official rates differed by close to twenty four percent. Part of demand is savings demand: buying currency to hold value, not to spend. Set these three common beliefs aside and you will read the news more accurately. Good news does not always cheapen the dollar; distance from expectations decides. Channel two sets the long run slope, and channel three sets the timing of jumps. Now you have the answer: the dollar moves through four channels. The next lesson comes tomorrow.