Short term and perhaps even mid term I would say yes food, water and things you can trade is what you want to concentrate on. As I said gold and sliver only if you have necessary items well covered. I am thinking hard assets like these for long term if and when the economy does come back eventually. Gold and silver historically holds its value where as nations currencies are only as good to the extent that someone is willing to accept them and inflation will wipe them out. Biblical speaking if what we enter is end times as prophesied in scripture then gold and silver want do you much good.
By faith Noah,being warned of God of things not seen as yet, moved with fear,prepared an ark to the saving of his house;by the which he condemned the world,and became heir of the righteousness which is by faith Heb.11:7