We should definitely start with the necessities of life. Food and clean water, hygiene (it sounds dumb, but being able to bathe is a luxury in some places), den

We should definitely start with the necessities of life. Food and clean water, hygiene (it sounds dumb, but being able to bathe is a luxury in some places), dental care is probably more important than medical just from the standpoint that more need it... Shelter would definitely be on the list. Energy probably. Transportation probably not. How to define the minimums... not entirely sure. Simplistic formula are liable to be downright unpleasant (daily calories) if distorted in situations like the "lowest bidder provides". Anything more than simplistic will soon turn into a designed-by-committee mess. Clean water is the only easy one to define. Measured in gallons or liters, no contamination from toxins, no contamination that makes it unpalatable to a reasonable person. Even energy can take many forms... electricity, cooking fuel, heating. If you live on the equator, no need for heating, but in northern climes it is a matter of survival. And the exchange rates between various forms of energy aren't constant, not even within a single locale.