The arrival of early European whalers and sealers expanded New Zealand’s bartering economy, trading European food and clothing in exchange for local wood, water and knowledge. Europeans also brought tokenised money in the form of foreign coins made of gold and silver. Eventually, this concept of money replaced the bartering system due to its convenience.
For that matter even RBI governor is always concerned because people in the financial sector and those dealing with money cannot afford to be complacent even for a single moment. My third and final message is that, life is not a bed of roses and in your career you are bound to face some bad times.