[Double_a_92]

The pegging is not forced on them. It's their own national bank which buys and sells tons of Euros to keep the exchange rate stable.

[vkreso]

Exactly, its an autonomous response towards the market. Stability is always preffered in human decision making.

[dragonwriter]

> It's their own national bank which buys and sells tons of Euros to keep the exchange rate stable.

The two CFA franc zones have zone central banks (which aren't exclusively controlled by countries in the respective zone, since France has a seat on each), it's not individual national central banks issuing currency or managing the peg.