The everyday logistics required to keep a 200,000-strong force running pose a huge operational challenge.

In practice, this can be a large operational challenge.

This month the central bank said that it had begun formal discussions with financial institutions about the operational challenges surrounding negative rates.

Small and medium-sized businesses are finding it more difficult to cope with the operational challenges presented by stockpiling.

While its study recognised the operational challenges of exporting, it found the biggest problem was that many small businesses have simply never considered it.