I wonder how their differences from Mortals affect Elven economics. I think of Aman as a post-scarcity place because it's literally Paradise and the Valar love the Eldar too much to let any of them languish in poverty, but of course Middle-earth is a place of cold and hunger and war, and other ugly things.
Nonetheless, Elves don't have to spend any time or energy being sick, getting old, caring for the sick and old, or carrying/birthing/raising babies who die before age 5. Their societies can be and are devastated by war, but seldom if ever by famine, and never by plague. Their elder generations don't have to hurry to pass on what they can to younger generations before dying. The elders keep accumulating more wisdom and experience and skill, and everyone is free to devote more their time and energy to just being alive. They don't even need as much food, clothing, shelter, or sleep as humans (though they do need some of each). They also don't have to hurry to reproduce before age 40, they can afford to wait until the right person comes into their life and they find a peaceful time to raise children. This frees them from much of the constraints and needs that drive Mortals.
So Elves are naturally less motivated by the bodily urges, as Tolkien put it: sex, food, comfort, and fear of injury and illness. Plus Elves are unfallen so they're less inclined to greed and violence (though they obviously can fall to that level!). Instead they're motivated strongly to be artistic in everything they do, and I think, to simply enjoy life. They're free to enjoy life and be happier than Mortals can ever hope to be.
How does that affect their economy? It surely makes a system like Haerangil just described easier for Elves than for Humans, even when living in rather large groups. Elves also have centuries or millennia to get to know each other, so even in a large city like Gondolin there may be far fewer strangers, and that will affect how people relate to each other. Maybe even in big cities, they can develop the kind of close-knit relationships that small hunter-gatherer clans have. The average Elf isn't strongly motivated to screw over other people to make a profit, and being long-lived they have to live with whatever they do to their environment.
They're probably also less hurried in everything that they do, because they have literally all the time in the world. Of course they can be prompt and quick when they need to (in war, or on a hunting trip, or when rescuing somebody from a frozen lake or whatever). But for example, although Calaquendi surely could have invented water-clocks, I don't think the idea of a clock would occur to an Elf. They can tell more-or-less what hour it is by the color of Tree-Light or the position of the Sun or stars. I imagine when Elves have an event, they don't have particular start or end times scheduled out, people just show up some time during that day or night, kind of whenever. I don't think they really care about precise timing for most things. If a Human showed them a clock, I imagine most Elves would just ask "But why do you care what time it is?"
