Changes in exchange rate have profound effects on economic activity in an economy. Generally, appreciation of domestic currency is considered contractionary, while a depreciation expansionary. However, depreciation can be contractionary too-hence the term Exchange Rate Dichotomy for countries with high share of imported capital.
Using cross country analysis of 97 economies over the period, 2003- 2017, we show that this indeed happens as supply side effects overwhelm the effects on demand side for a group of countries dependent highly on imported capital (G2) than the group with lower share of imported capital to total investment (G1). Impulse Responses obtained from SVAR and DSGE models show that depreciation in G2 countries has result in lower exports growth and higher inflation for longer durations compared to export growth and inflation in G1 thus indicating that supply side dominates the demand side effects in G2.
The evidence shows that overemphasis on adjustment in exchange rate - especially enforced around program designs of Breton wood institutions - may not be the panacea. Instead, the policy makers must focus on reforms aimed at enhancing the productive capacity of an economy. This, of course, must be achieved without prejudice to the principles and mechanisms needed for a market-based adjustment of exchange rate.
Sajawal Khan & Muhammad Ejaz (2022). Exchange Rate Dichotomy: Demand versus Supply Side Dominance. Journal of Global Economy, Trade and International Business. 2(2), 123-149. https://DOI:10.47509/JGETIB.2022.v02i02.02