“A careful assessment should be conducted to ensure the benefits from this measure outweigh the costs and potential risks including, for instance, macroeconomic and financial stability risks, legal and operational risks, governance risks, cost of forgone FX reserves,” an IMF spokesperson said Tuesday in an emailed response to questions.

The Washington-based lender urged authorities in the southern African nation to rather use conventional measures to address economic challenges. Those measures include maintaining a tight monetary-policy stance and accelerating the liberalization of the foreign-currency market by removing restrictions on the exchange rate at which banks, authorized dealers, and businesses transact, it said.

The Zimbabwean dollar has depreciated 40% against the greenback this year to trade at 1,070 on the official market and between 1,500 to 2,300 on the parallel market.

The IMF last year also raised issue with the Central African Republic’s adoption of Bitcoin as legal tender. A decision the nation reversed a year later.