Merchant of the Underworld
The Fields of Elysium were progressing quite similarly in the manner of Earth (i.e the living)
It's markets were dictated by the paper money and junk that found it's way to the world dimension or plane that the Underworld was located. It's economy ran based on the money printed and created by those still alive, which were strips of paper with specialized ink stains called legacy money. This money held the blessing and the breath found only among the living and was difficult to counterfeit, but not impossible.
Other objects of dedication suck as statues, cars, and even spirits of art, craftsmen masterpieces, swords, unfinished paintings, arias, secret messages could be found among the most venerated mansions and mausoleums.
In this world all the bonds and promises made above were washed away, severed. Few among the living dared or even could visit. Most souls took it to create a second chance. This wasn't hell or heaven, purgatory or a waiting room, but rather a place to visit and stay. Some choose to stay, some disappeared, both heaven and hell coexisted as all could be found here.
Various treasure hunts ensued in search of casinos and lost fortunes. Wandering spirits could be seen as was capable ministers, betrayed generals, scheming businessmen, and black-hearted villains. Ghosts of many pasts from unresolved debts and grudges existed as well. The cries and struggles of the uninspired, thoughtful philosophers and fallen empires helped to add to the chaos that was the netherworld.
This was the story I originally wanted to write...however writing is hard. So this is what came out instead.