Due to the electromagnetic pulse, the bank was temporarily unable to resume normal operations, and electronic payments were out of the question, so cash once again became the mainstream transaction mode.
However, because cash had been used so rarely before, the circulating cash could not fully meet the consumer demand in the market.
But this was a good thing. After all, even if we did not return to the era of a planned economy, because many things can only rely on the original stock, the circulation of cash is less, which can also slow down the sale of goods.
Especially for two non-necessities like tobacco and alcohol which rapidly got consumed, during the ice age, the originally planted tobacco leaves had all withered, and it would take some time to replant them.