Why the birr can weaken while inflation slows.

This is an explainer of a possible economic pattern, not a claim that the birr weakened today. Establishing today’s currency movement requires comparable dated quotes. An unchanged publication checked twice cannot supply that evidence.

Inflation measures the percentage change in a price basket. An exchange quote tells you how many birr a bank pays for, or charges for, a unit of foreign currency. Those measures describe different things, over different periods. Ethiopia’s August 2026 CPI release illustrates the first distinction: annual inflation eased from July, even though prices increased during August.

Consider an illustration, not Ethiopian price data. A basket costs 100 birr in year one, 120 in year two and 132 in year three. Inflation slows from 20% to 10%, but the basket becomes more expensive in both years. Disinflation describes the slower rate of increase. Deflation would mean an actual fall in the price level.

A weaker exchange rate can increase the birr cost of imported inputs if the foreign-currency price is unchanged. But that pressure need not dominate the entire consumer basket. Other items can grow in price more slowly, and changes in supply, demand or policy can offset part of the pressure. Imported-cost pass-through also need not be immediate or complete.

Annual comparisons add another complication. A large price jump a year ago can leave the comparison window, reducing the annual rate even while prices continue rising now. That is why a year-over-year reading should be considered alongside monthly changes, rather than substituted for them.

For households, the relevant question is whether income keeps pace with the bills actually paid. A national average may differ from a family’s spending on food, rent, transport or school costs. Lower inflation offers less relief when income growth is also weak.

For businesses, separate the cost of imported inventory from selling prices and cash-flow needs. For people receiving money from abroad, a larger birr payout does not automatically buy more goods. The payout and the recipient’s local costs both matter.

Track the next dated CPI observation and its monthly as well as annual comparison. For FX, choose the correct perspective: you sell foreign currency at the bank’s buy rate and buy it at the bank’s sell rate. Use the same banks across publication dates to assess movement.

Keep levels and changes apart. A quote of 160 ETB per dollar is a level; a move from 150 to 160 is a change. Both numbers here are illustrative. Neither says what happened to a household’s basket. A useful dashboard shows the period, the source and the comparison before offering an interpretation.