Hey, guys who know how macroeconomics work. Is it true that devaluation of national currency is good for export-oriented economy? I have heard that many times but suspect that this is not so simple
It's not mana from heaven but it promotes employment at the cost of buying power.
Suppose you have two countries, US (dollars) and Europe (euros). The US embraces higher inflation than the Euro. That means that the value of the Euro rises against the dollar. So before you needed one dollar to trade for one euro, now you need 1.1 dollars to trade for one euro.
Now suppose you have a retailer who was importing 1000 euro widgets in Europe and selling them for $1500 in the US. Before that meant importing for $1000 and selling for $1500, meaning $500 for expenses and profit. Now it's only $400. So it might not be a good idea to import those widgets. Maybe you can get those widgets in the US or maybe you raise the price on widgets and buy fewer of them. Either way, that's not good for imports from Europe.
What is good for Europe though is that if they are buying stuff from the US in return, that stuff just got 9% cheaper. That means they can afford to buy 9% more of it and their standard of living just went up, for those who didn't lose their jobs exporting stuff. Europe will also probably buy more US goods because they are cheaper, which is good for the US.
The win-win situation here emerges when one country is suffering from unemployment and the other country has low unemployment and high inflation. In that case the unemployment country (lets say the US) can alleviate it's unemployment by exporting to the inflation country (lets say China). The inflationary country fights inflation because the goods it was previously exporting are now available for domestic consumers. Maybe the domestic consumers dont want those exact goods, but the labor and capital that was being used on those goods can be redirected towards domestic needs.