You can grow bananas in Alaska, but you can’t simply plant them outside. Thus my example assumes greenhouses built to a large enough scale to handle trees which is a major economic and environmental cost.
Comparative advantage applies to a huge range of things not just bananas. You could mine cobalt basically anywhere at extreme expense, but everyone is better off when that happens in locations that naturally have extremely high concentrations of cobalt.
You can grow bananas in Alaska, but you can’t simply plant them outside. Thus my example assumes greenhouses built to a large enough scale to handle trees which is a major economic and environmental cost.
Comparative advantage applies to a huge range of things not just bananas. You could mine cobalt basically anywhere at extreme expense, but everyone is better off when that happens in locations that naturally have extremely high concentrations of cobalt.