Stay with me this relates to businesses in tourist communities.
Let's say you have two valleys each with a herd of 20 deer. In valley #1 there is only enough food for 12 deer to survive the winter and in valley #2 there is enough for 22. When valley #1 runs out of food, 7 deer from valley #1 cross over to valley #2 mid-winter.
Q: How many deer survive the winter out of both valley's? A: None, they don't ration. They just eat until there's nothing left and then they either have enough fat reserves to make it or they don't.
15 years ago the Vail valley phone directory was the thickness of two magazines. Now it's 2" thick. All of those names and numbers are mouths too feed and bills to pay using the expenditures and generosity of tourists.
If there's not enough money for all the mouths, many mouths will starve.